./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN --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 473191b5f1326a38296af26dcd2c7f553c42833f82b512e9fb358484309bc769 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:16:56,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:16:56,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:16:56,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:16:56,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:16:56,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:16:56,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:16:56,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:16:56,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:16:56,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:16:56,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:16:56,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:16:56,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:16:56,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:16:56,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:16:56,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:16:56,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:16:56,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:16:56,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:16:56,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:16:56,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:16:56,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:16:56,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:16:56,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:16:56,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:16:56,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:16:56,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:16:56,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:16:56,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:16:56,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:16:56,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:16:56,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:16:56,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:16:56,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:16:56,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:16:56,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:16:56,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:16:56,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:16:56,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:16:56,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:16:56,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:16:56,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:16:57,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:16:57,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:16:57,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:16:57,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:16:57,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:16:57,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:16:57,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:16:57,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:16:57,009 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:16:57,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:16:57,010 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:16:57,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:16:57,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:16:57,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:16:57,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:16:57,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:16:57,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:16:57,013 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:16:57,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:16:57,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:16:57,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:16:57,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:16:57,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:16:57,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:16:57,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:16:57,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:16:57,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:16:57,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:16:57,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:16:57,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:16:57,017 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:16:57,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:16:57,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:16:57,017 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_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 473191b5f1326a38296af26dcd2c7f553c42833f82b512e9fb358484309bc769 [2022-11-20 12:16:57,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:16:57,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:16:57,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:16:57,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:16:57,408 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:16:57,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-20 12:17:01,237 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:17:01,575 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:17:01,576 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-20 12:17:01,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/data/d89cc9c55/291b77ff131e49b0a3df2719ae756d0c/FLAG7ac5e6d15 [2022-11-20 12:17:01,611 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/data/d89cc9c55/291b77ff131e49b0a3df2719ae756d0c [2022-11-20 12:17:01,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:17:01,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:17:01,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:17:01,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:17:01,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:17:01,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:17:01" (1/1) ... [2022-11-20 12:17:01,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@721c69a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:01, skipping insertion in model container [2022-11-20 12:17:01,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:17:01" (1/1) ... [2022-11-20 12:17:01,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:17:01,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:17:01,912 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_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-20 12:17:02,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:17:02,346 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:17:02,363 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_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-20 12:17:02,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:17:02,571 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:17:02,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02 WrapperNode [2022-11-20 12:17:02,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:17:02,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:17:02,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:17:02,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:17:02,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,693 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-11-20 12:17:02,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:17:02,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:17:02,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:17:02,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:17:02,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:17:02,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:17:02,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:17:02,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:17:02,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (1/1) ... [2022-11-20 12:17:02,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:17:02,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:02,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:17:02,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a7c3c4-24c0-41be-a7aa-e251c2c8b5b2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:17:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:17:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:17:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:17:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:17:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:17:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 12:17:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 12:17:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 12:17:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 12:17:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 12:17:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 12:17:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 12:17:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 12:17:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:17:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:17:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:17:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:17:02,891 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:17:03,122 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:17:03,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:17:03,652 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:17:03,910 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:17:03,910 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:17:03,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:03 BoogieIcfgContainer [2022-11-20 12:17:03,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:17:03,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:17:03,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:17:03,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:17:03,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:17:01" (1/3) ... [2022-11-20 12:17:03,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418618ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:17:03, skipping insertion in model container [2022-11-20 12:17:03,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:02" (2/3) ... [2022-11-20 12:17:03,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418618ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:17:03, skipping insertion in model container [2022-11-20 12:17:03,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:03" (3/3) ... [2022-11-20 12:17:03,936 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-20 12:17:03,946 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:17:03,958 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:17:03,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 12:17:03,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:17:04,029 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:17:04,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2022-11-20 12:17:04,227 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-11-20 12:17:04,227 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:04,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2022-11-20 12:17:04,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2022-11-20 12:17:04,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2022-11-20 12:17:04,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:17:04,280 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;@6bf2167d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:17:04,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 12:17:04,350 INFO L130 PetriNetUnfolder]: 0/90 cut-off events. [2022-11-20 12:17:04,351 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:04,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:04,352 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] [2022-11-20 12:17:04,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:04,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:04,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1921341269, now seen corresponding path program 1 times [2022-11-20 12:17:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:04,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928555487] [2022-11-20 12:17:04,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:04,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:05,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:05,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:05,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928555487] [2022-11-20 12:17:05,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928555487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:05,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:05,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:05,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46858273] [2022-11-20 12:17:05,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:05,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:05,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:05,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:05,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:05,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 136 [2022-11-20 12:17:05,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:05,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:05,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 136 [2022-11-20 12:17:05,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:05,596 INFO L130 PetriNetUnfolder]: 17/214 cut-off events. [2022-11-20 12:17:05,597 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 12:17:05,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 214 events. 17/214 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 502 event pairs, 3 based on Foata normal form. 9/216 useless extension candidates. Maximal degree in co-relation 213. Up to 27 conditions per place. [2022-11-20 12:17:05,602 INFO L137 encePairwiseOnDemand]: 131/136 looper letters, 11 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2022-11-20 12:17:05,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 131 transitions, 300 flow [2022-11-20 12:17:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:05,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-11-20 12:17:05,652 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-20 12:17:05,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-11-20 12:17:05,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-11-20 12:17:05,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:05,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-11-20 12:17:05,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:05,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:05,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:05,688 INFO L175 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 3 states and 384 transitions. [2022-11-20 12:17:05,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 131 transitions, 300 flow [2022-11-20 12:17:05,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 131 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:17:05,700 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 268 flow [2022-11-20 12:17:05,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2022-11-20 12:17:05,712 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2022-11-20 12:17:05,712 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 268 flow [2022-11-20 12:17:05,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:05,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:05,713 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:05,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:17:05,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:05,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:05,715 INFO L85 PathProgramCache]: Analyzing trace with hash 537188533, now seen corresponding path program 1 times [2022-11-20 12:17:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:05,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857771625] [2022-11-20 12:17:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:05,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:06,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:06,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857771625] [2022-11-20 12:17:06,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857771625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:06,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:06,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:17:06,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790849550] [2022-11-20 12:17:06,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:06,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:17:06,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:06,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:17:06,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:06,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-20 12:17:06,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 7 states, 7 states have (on average 102.14285714285714) internal successors, (715), 7 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:06,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:06,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-20 12:17:06,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:11,205 INFO L130 PetriNetUnfolder]: 5568/14173 cut-off events. [2022-11-20 12:17:11,206 INFO L131 PetriNetUnfolder]: For 454/454 co-relation queries the response was YES. [2022-11-20 12:17:11,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22693 conditions, 14173 events. 5568/14173 cut-off events. For 454/454 co-relation queries the response was YES. Maximal size of possible extension queue 679. Compared 145606 event pairs, 975 based on Foata normal form. 0/13827 useless extension candidates. Maximal degree in co-relation 22627. Up to 2981 conditions per place. [2022-11-20 12:17:11,339 INFO L137 encePairwiseOnDemand]: 119/136 looper letters, 47 selfloop transitions, 15 changer transitions 116/260 dead transitions. [2022-11-20 12:17:11,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 260 transitions, 894 flow [2022-11-20 12:17:11,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:17:11,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1455 transitions. [2022-11-20 12:17:11,346 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8229638009049773 [2022-11-20 12:17:11,347 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1455 transitions. [2022-11-20 12:17:11,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1455 transitions. [2022-11-20 12:17:11,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:11,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1455 transitions. [2022-11-20 12:17:11,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 111.92307692307692) internal successors, (1455), 13 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:11,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:11,360 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:11,361 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 13 states and 1455 transitions. [2022-11-20 12:17:11,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 260 transitions, 894 flow [2022-11-20 12:17:11,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 260 transitions, 868 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:11,372 INFO L231 Difference]: Finished difference. Result has 161 places, 126 transitions, 404 flow [2022-11-20 12:17:11,373 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=404, PETRI_PLACES=161, PETRI_TRANSITIONS=126} [2022-11-20 12:17:11,374 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 18 predicate places. [2022-11-20 12:17:11,375 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 126 transitions, 404 flow [2022-11-20 12:17:11,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.14285714285714) internal successors, (715), 7 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:11,376 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:11,377 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] [2022-11-20 12:17:11,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:17:11,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:11,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:11,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1366435372, now seen corresponding path program 1 times [2022-11-20 12:17:11,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:11,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259619956] [2022-11-20 12:17:11,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:11,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:13,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:13,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259619956] [2022-11-20 12:17:13,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259619956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:13,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:13,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:17:13,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712501214] [2022-11-20 12:17:13,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:13,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:17:13,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:13,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:17:13,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:17:13,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-20 12:17:13,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 126 transitions, 404 flow. Second operand has 10 states, 10 states have (on average 101.3) internal successors, (1013), 10 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:13,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:13,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-20 12:17:13,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:16,021 INFO L130 PetriNetUnfolder]: 3620/7288 cut-off events. [2022-11-20 12:17:16,022 INFO L131 PetriNetUnfolder]: For 16119/26560 co-relation queries the response was YES. [2022-11-20 12:17:16,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25328 conditions, 7288 events. 3620/7288 cut-off events. For 16119/26560 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 58645 event pairs, 248 based on Foata normal form. 193/7345 useless extension candidates. Maximal degree in co-relation 25246. Up to 2525 conditions per place. [2022-11-20 12:17:16,138 INFO L137 encePairwiseOnDemand]: 114/136 looper letters, 64 selfloop transitions, 32 changer transitions 168/346 dead transitions. [2022-11-20 12:17:16,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 346 transitions, 2424 flow [2022-11-20 12:17:16,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 12:17:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 12:17:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2067 transitions. [2022-11-20 12:17:16,149 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7999226006191951 [2022-11-20 12:17:16,149 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2067 transitions. [2022-11-20 12:17:16,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2067 transitions. [2022-11-20 12:17:16,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:16,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2067 transitions. [2022-11-20 12:17:16,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 108.78947368421052) internal successors, (2067), 19 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:16,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:16,169 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:16,169 INFO L175 Difference]: Start difference. First operand has 161 places, 126 transitions, 404 flow. Second operand 19 states and 2067 transitions. [2022-11-20 12:17:16,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 346 transitions, 2424 flow [2022-11-20 12:17:16,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 346 transitions, 2396 flow, removed 14 selfloop flow, removed 3 redundant places. [2022-11-20 12:17:16,286 INFO L231 Difference]: Finished difference. Result has 169 places, 148 transitions, 802 flow [2022-11-20 12:17:16,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=802, PETRI_PLACES=169, PETRI_TRANSITIONS=148} [2022-11-20 12:17:16,290 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 26 predicate places. [2022-11-20 12:17:16,290 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 148 transitions, 802 flow [2022-11-20 12:17:16,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.3) internal successors, (1013), 10 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:16,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:16,292 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] [2022-11-20 12:17:16,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:17:16,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:16,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:16,294 INFO L85 PathProgramCache]: Analyzing trace with hash -604385381, now seen corresponding path program 1 times [2022-11-20 12:17:16,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:16,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145249208] [2022-11-20 12:17:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:17,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:17,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145249208] [2022-11-20 12:17:17,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145249208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:17,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:17,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:17:17,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237135450] [2022-11-20 12:17:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:17,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:17:17,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:17:17,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:17,271 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-20 12:17:17,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 148 transitions, 802 flow. Second operand has 7 states, 7 states have (on average 102.57142857142857) internal successors, (718), 7 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) [2022-11-20 12:17:17,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:17,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-20 12:17:17,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:19,853 INFO L130 PetriNetUnfolder]: 2260/5021 cut-off events. [2022-11-20 12:17:19,854 INFO L131 PetriNetUnfolder]: For 29042/54303 co-relation queries the response was YES. [2022-11-20 12:17:19,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24194 conditions, 5021 events. 2260/5021 cut-off events. For 29042/54303 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 39902 event pairs, 252 based on Foata normal form. 92/4980 useless extension candidates. Maximal degree in co-relation 24087. Up to 1681 conditions per place. [2022-11-20 12:17:19,932 INFO L137 encePairwiseOnDemand]: 122/136 looper letters, 74 selfloop transitions, 22 changer transitions 76/254 dead transitions. [2022-11-20 12:17:19,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 254 transitions, 2300 flow [2022-11-20 12:17:19,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:17:19,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1403 transitions. [2022-11-20 12:17:19,938 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.793552036199095 [2022-11-20 12:17:19,938 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1403 transitions. [2022-11-20 12:17:19,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1403 transitions. [2022-11-20 12:17:19,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:19,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1403 transitions. [2022-11-20 12:17:19,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.92307692307692) internal successors, (1403), 13 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:19,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:19,955 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:19,955 INFO L175 Difference]: Start difference. First operand has 169 places, 148 transitions, 802 flow. Second operand 13 states and 1403 transitions. [2022-11-20 12:17:19,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 254 transitions, 2300 flow [2022-11-20 12:17:20,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 254 transitions, 2236 flow, removed 30 selfloop flow, removed 5 redundant places. [2022-11-20 12:17:20,055 INFO L231 Difference]: Finished difference. Result has 176 places, 160 transitions, 1056 flow [2022-11-20 12:17:20,061 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1056, PETRI_PLACES=176, PETRI_TRANSITIONS=160} [2022-11-20 12:17:20,063 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 33 predicate places. [2022-11-20 12:17:20,063 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 160 transitions, 1056 flow [2022-11-20 12:17:20,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.57142857142857) internal successors, (718), 7 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) [2022-11-20 12:17:20,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:20,065 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] [2022-11-20 12:17:20,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:17:20,066 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:20,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:20,067 INFO L85 PathProgramCache]: Analyzing trace with hash -27799662, now seen corresponding path program 1 times [2022-11-20 12:17:20,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:20,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593348308] [2022-11-20 12:17:20,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:20,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:20,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:20,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:20,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593348308] [2022-11-20 12:17:20,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593348308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:20,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:20,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:17:20,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241500005] [2022-11-20 12:17:20,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:20,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:17:20,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:20,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:17:20,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:17:20,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2022-11-20 12:17:20,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 160 transitions, 1056 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:20,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:20,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2022-11-20 12:17:20,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:21,735 INFO L130 PetriNetUnfolder]: 1504/3457 cut-off events. [2022-11-20 12:17:21,735 INFO L131 PetriNetUnfolder]: For 31270/51237 co-relation queries the response was YES. [2022-11-20 12:17:21,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17978 conditions, 3457 events. 1504/3457 cut-off events. For 31270/51237 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26199 event pairs, 301 based on Foata normal form. 211/3431 useless extension candidates. Maximal degree in co-relation 17872. Up to 1383 conditions per place. [2022-11-20 12:17:21,822 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 49 selfloop transitions, 9 changer transitions 34/212 dead transitions. [2022-11-20 12:17:21,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 212 transitions, 1894 flow [2022-11-20 12:17:21,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:17:21,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:17:21,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1074 transitions. [2022-11-20 12:17:21,828 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8774509803921569 [2022-11-20 12:17:21,828 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1074 transitions. [2022-11-20 12:17:21,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1074 transitions. [2022-11-20 12:17:21,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:21,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1074 transitions. [2022-11-20 12:17:21,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.33333333333333) internal successors, (1074), 9 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:21,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:21,838 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:21,838 INFO L175 Difference]: Start difference. First operand has 176 places, 160 transitions, 1056 flow. Second operand 9 states and 1074 transitions. [2022-11-20 12:17:21,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 212 transitions, 1894 flow [2022-11-20 12:17:22,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 212 transitions, 1811 flow, removed 39 selfloop flow, removed 7 redundant places. [2022-11-20 12:17:22,022 INFO L231 Difference]: Finished difference. Result has 175 places, 168 transitions, 1194 flow [2022-11-20 12:17:22,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1009, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1194, PETRI_PLACES=175, PETRI_TRANSITIONS=168} [2022-11-20 12:17:22,026 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 32 predicate places. [2022-11-20 12:17:22,027 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 168 transitions, 1194 flow [2022-11-20 12:17:22,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,028 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:22,028 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] [2022-11-20 12:17:22,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:17:22,028 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:22,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:22,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1511319866, now seen corresponding path program 1 times [2022-11-20 12:17:22,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:22,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326048149] [2022-11-20 12:17:22,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:22,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:22,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:22,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:22,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326048149] [2022-11-20 12:17:22,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326048149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:22,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:22,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:17:22,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494790351] [2022-11-20 12:17:22,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:22,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:17:22,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:22,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:17:22,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:22,748 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-20 12:17:22,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 168 transitions, 1194 flow. Second operand has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:22,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-20 12:17:22,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:25,186 INFO L130 PetriNetUnfolder]: 1946/4570 cut-off events. [2022-11-20 12:17:25,187 INFO L131 PetriNetUnfolder]: For 37792/64968 co-relation queries the response was YES. [2022-11-20 12:17:25,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24650 conditions, 4570 events. 1946/4570 cut-off events. For 37792/64968 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 36769 event pairs, 354 based on Foata normal form. 123/4518 useless extension candidates. Maximal degree in co-relation 24532. Up to 1581 conditions per place. [2022-11-20 12:17:25,268 INFO L137 encePairwiseOnDemand]: 118/136 looper letters, 77 selfloop transitions, 43 changer transitions 72/274 dead transitions. [2022-11-20 12:17:25,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 274 transitions, 2958 flow [2022-11-20 12:17:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:17:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1397 transitions. [2022-11-20 12:17:25,275 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.790158371040724 [2022-11-20 12:17:25,275 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1397 transitions. [2022-11-20 12:17:25,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1397 transitions. [2022-11-20 12:17:25,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:25,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1397 transitions. [2022-11-20 12:17:25,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.46153846153847) internal successors, (1397), 13 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,287 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,287 INFO L175 Difference]: Start difference. First operand has 175 places, 168 transitions, 1194 flow. Second operand 13 states and 1397 transitions. [2022-11-20 12:17:25,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 274 transitions, 2958 flow [2022-11-20 12:17:25,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 274 transitions, 2867 flow, removed 41 selfloop flow, removed 10 redundant places. [2022-11-20 12:17:25,402 INFO L231 Difference]: Finished difference. Result has 183 places, 178 transitions, 1516 flow [2022-11-20 12:17:25,402 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1151, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1516, PETRI_PLACES=183, PETRI_TRANSITIONS=178} [2022-11-20 12:17:25,406 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 40 predicate places. [2022-11-20 12:17:25,407 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 178 transitions, 1516 flow [2022-11-20 12:17:25,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:25,408 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] [2022-11-20 12:17:25,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:17:25,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:25,409 INFO L85 PathProgramCache]: Analyzing trace with hash 63092310, now seen corresponding path program 1 times [2022-11-20 12:17:25,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:25,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721043041] [2022-11-20 12:17:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:25,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:26,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:26,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:26,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721043041] [2022-11-20 12:17:26,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721043041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:26,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:26,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:17:26,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086426321] [2022-11-20 12:17:26,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:26,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:17:26,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:26,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:17:26,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:17:26,712 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-20 12:17:26,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 178 transitions, 1516 flow. Second operand has 10 states, 10 states have (on average 101.7) internal successors, (1017), 10 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:26,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-20 12:17:26,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:29,625 INFO L130 PetriNetUnfolder]: 2350/5177 cut-off events. [2022-11-20 12:17:29,626 INFO L131 PetriNetUnfolder]: For 68280/119445 co-relation queries the response was YES. [2022-11-20 12:17:29,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33367 conditions, 5177 events. 2350/5177 cut-off events. For 68280/119445 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 41533 event pairs, 176 based on Foata normal form. 129/5187 useless extension candidates. Maximal degree in co-relation 33239. Up to 1985 conditions per place. [2022-11-20 12:17:29,700 INFO L137 encePairwiseOnDemand]: 116/136 looper letters, 77 selfloop transitions, 106 changer transitions 83/348 dead transitions. [2022-11-20 12:17:29,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 348 transitions, 4668 flow [2022-11-20 12:17:29,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:17:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-20 12:17:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1714 transitions. [2022-11-20 12:17:29,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7876838235294118 [2022-11-20 12:17:29,716 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1714 transitions. [2022-11-20 12:17:29,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1714 transitions. [2022-11-20 12:17:29,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:29,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1714 transitions. [2022-11-20 12:17:29,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 107.125) internal successors, (1714), 16 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:29,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:29,737 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:29,737 INFO L175 Difference]: Start difference. First operand has 183 places, 178 transitions, 1516 flow. Second operand 16 states and 1714 transitions. [2022-11-20 12:17:29,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 348 transitions, 4668 flow [2022-11-20 12:17:29,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 348 transitions, 4538 flow, removed 65 selfloop flow, removed 6 redundant places. [2022-11-20 12:17:29,913 INFO L231 Difference]: Finished difference. Result has 193 places, 239 transitions, 2835 flow [2022-11-20 12:17:29,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1478, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2835, PETRI_PLACES=193, PETRI_TRANSITIONS=239} [2022-11-20 12:17:29,914 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 50 predicate places. [2022-11-20 12:17:29,914 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 239 transitions, 2835 flow [2022-11-20 12:17:29,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.7) internal successors, (1017), 10 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:29,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:29,916 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] [2022-11-20 12:17:29,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:17:29,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1676981800, now seen corresponding path program 2 times [2022-11-20 12:17:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:29,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928508694] [2022-11-20 12:17:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:29,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:31,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:31,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:31,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928508694] [2022-11-20 12:17:31,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928508694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:31,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:31,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:17:31,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900694840] [2022-11-20 12:17:31,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:31,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:17:31,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:31,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:17:31,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:17:31,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-20 12:17:31,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 239 transitions, 2835 flow. Second operand has 12 states, 12 states have (on average 101.25) internal successors, (1215), 12 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:31,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:31,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-20 12:17:31,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:34,266 INFO L130 PetriNetUnfolder]: 2285/5613 cut-off events. [2022-11-20 12:17:34,266 INFO L131 PetriNetUnfolder]: For 86063/132655 co-relation queries the response was YES. [2022-11-20 12:17:34,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37697 conditions, 5613 events. 2285/5613 cut-off events. For 86063/132655 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 48452 event pairs, 156 based on Foata normal form. 677/6114 useless extension candidates. Maximal degree in co-relation 37558. Up to 1958 conditions per place. [2022-11-20 12:17:34,380 INFO L137 encePairwiseOnDemand]: 115/136 looper letters, 90 selfloop transitions, 104 changer transitions 109/385 dead transitions. [2022-11-20 12:17:34,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 385 transitions, 6164 flow [2022-11-20 12:17:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 12:17:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 12:17:34,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2024 transitions. [2022-11-20 12:17:34,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7832817337461301 [2022-11-20 12:17:34,388 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2024 transitions. [2022-11-20 12:17:34,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2024 transitions. [2022-11-20 12:17:34,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:34,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2024 transitions. [2022-11-20 12:17:34,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 106.52631578947368) internal successors, (2024), 19 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:34,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:34,554 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:34,554 INFO L175 Difference]: Start difference. First operand has 193 places, 239 transitions, 2835 flow. Second operand 19 states and 2024 transitions. [2022-11-20 12:17:34,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 385 transitions, 6164 flow [2022-11-20 12:17:34,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 385 transitions, 5885 flow, removed 59 selfloop flow, removed 3 redundant places. [2022-11-20 12:17:34,790 INFO L231 Difference]: Finished difference. Result has 214 places, 254 transitions, 3366 flow [2022-11-20 12:17:34,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=2645, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3366, PETRI_PLACES=214, PETRI_TRANSITIONS=254} [2022-11-20 12:17:34,795 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 71 predicate places. [2022-11-20 12:17:34,795 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 254 transitions, 3366 flow [2022-11-20 12:17:34,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 101.25) internal successors, (1215), 12 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:34,796 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:34,796 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] [2022-11-20 12:17:34,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:17:34,797 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:34,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:34,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1786070736, now seen corresponding path program 3 times [2022-11-20 12:17:34,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:34,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843787528] [2022-11-20 12:17:34,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:34,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:35,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:35,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843787528] [2022-11-20 12:17:35,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843787528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:35,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:35,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:17:35,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074193219] [2022-11-20 12:17:35,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:35,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:17:35,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:35,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:17:35,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:17:35,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2022-11-20 12:17:35,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 254 transitions, 3366 flow. Second operand has 11 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:35,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:35,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2022-11-20 12:17:35,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:37,960 INFO L130 PetriNetUnfolder]: 2170/5316 cut-off events. [2022-11-20 12:17:37,960 INFO L131 PetriNetUnfolder]: For 116722/162563 co-relation queries the response was YES. [2022-11-20 12:17:38,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40405 conditions, 5316 events. 2170/5316 cut-off events. For 116722/162563 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 46689 event pairs, 312 based on Foata normal form. 685/5737 useless extension candidates. Maximal degree in co-relation 40259. Up to 2129 conditions per place. [2022-11-20 12:17:38,065 INFO L137 encePairwiseOnDemand]: 125/136 looper letters, 58 selfloop transitions, 31 changer transitions 46/311 dead transitions. [2022-11-20 12:17:38,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 311 transitions, 4944 flow [2022-11-20 12:17:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:17:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1505 transitions. [2022-11-20 12:17:38,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8512443438914027 [2022-11-20 12:17:38,072 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1505 transitions. [2022-11-20 12:17:38,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1505 transitions. [2022-11-20 12:17:38,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:38,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1505 transitions. [2022-11-20 12:17:38,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.76923076923077) internal successors, (1505), 13 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:38,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:38,085 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:38,086 INFO L175 Difference]: Start difference. First operand has 214 places, 254 transitions, 3366 flow. Second operand 13 states and 1505 transitions. [2022-11-20 12:17:38,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 311 transitions, 4944 flow [2022-11-20 12:17:38,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 311 transitions, 4747 flow, removed 74 selfloop flow, removed 12 redundant places. [2022-11-20 12:17:38,482 INFO L231 Difference]: Finished difference. Result has 212 places, 259 transitions, 3539 flow [2022-11-20 12:17:38,482 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3279, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3539, PETRI_PLACES=212, PETRI_TRANSITIONS=259} [2022-11-20 12:17:38,483 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 69 predicate places. [2022-11-20 12:17:38,483 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 259 transitions, 3539 flow [2022-11-20 12:17:38,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:38,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:38,484 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] [2022-11-20 12:17:38,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:17:38,484 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:38,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:38,485 INFO L85 PathProgramCache]: Analyzing trace with hash 399080608, now seen corresponding path program 4 times [2022-11-20 12:17:38,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:38,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283184657] [2022-11-20 12:17:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:38,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:39,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:39,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:39,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283184657] [2022-11-20 12:17:39,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283184657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:39,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:39,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:17:39,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58006155] [2022-11-20 12:17:39,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:39,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:17:39,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:39,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:17:39,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:17:39,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 136 [2022-11-20 12:17:39,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 259 transitions, 3539 flow. Second operand has 11 states, 11 states have (on average 111.72727272727273) internal successors, (1229), 11 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:39,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:39,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 136 [2022-11-20 12:17:39,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:41,347 INFO L130 PetriNetUnfolder]: 1948/4854 cut-off events. [2022-11-20 12:17:41,347 INFO L131 PetriNetUnfolder]: For 105425/178372 co-relation queries the response was YES. [2022-11-20 12:17:41,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37784 conditions, 4854 events. 1948/4854 cut-off events. For 105425/178372 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 43024 event pairs, 258 based on Foata normal form. 410/5068 useless extension candidates. Maximal degree in co-relation 37682. Up to 1953 conditions per place. [2022-11-20 12:17:41,433 INFO L137 encePairwiseOnDemand]: 125/136 looper letters, 75 selfloop transitions, 22 changer transitions 45/316 dead transitions. [2022-11-20 12:17:41,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 316 transitions, 5388 flow [2022-11-20 12:17:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:17:41,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1482 transitions. [2022-11-20 12:17:41,439 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2022-11-20 12:17:41,439 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1482 transitions. [2022-11-20 12:17:41,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1482 transitions. [2022-11-20 12:17:41,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:41,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1482 transitions. [2022-11-20 12:17:41,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.0) internal successors, (1482), 13 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:41,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:41,452 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:41,453 INFO L175 Difference]: Start difference. First operand has 212 places, 259 transitions, 3539 flow. Second operand 13 states and 1482 transitions. [2022-11-20 12:17:41,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 316 transitions, 5388 flow [2022-11-20 12:17:42,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 316 transitions, 5220 flow, removed 68 selfloop flow, removed 16 redundant places. [2022-11-20 12:17:42,047 INFO L231 Difference]: Finished difference. Result has 209 places, 264 transitions, 3735 flow [2022-11-20 12:17:42,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3471, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3735, PETRI_PLACES=209, PETRI_TRANSITIONS=264} [2022-11-20 12:17:42,049 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 66 predicate places. [2022-11-20 12:17:42,049 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 264 transitions, 3735 flow [2022-11-20 12:17:42,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 111.72727272727273) internal successors, (1229), 11 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:42,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:42,051 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:42,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:17:42,051 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash 783276153, now seen corresponding path program 1 times [2022-11-20 12:17:42,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:42,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734147994] [2022-11-20 12:17:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:42,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:43,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734147994] [2022-11-20 12:17:43,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734147994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:43,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:43,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:17:43,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986474869] [2022-11-20 12:17:43,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:43,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:17:43,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:43,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:17:43,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:17:43,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 136 [2022-11-20 12:17:43,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 264 transitions, 3735 flow. Second operand has 11 states, 11 states have (on average 111.81818181818181) internal successors, (1230), 11 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:43,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:43,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 136 [2022-11-20 12:17:43,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:44,675 INFO L130 PetriNetUnfolder]: 1771/4598 cut-off events. [2022-11-20 12:17:44,675 INFO L131 PetriNetUnfolder]: For 94362/179093 co-relation queries the response was YES. [2022-11-20 12:17:44,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35011 conditions, 4598 events. 1771/4598 cut-off events. For 94362/179093 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 41231 event pairs, 273 based on Foata normal form. 243/4638 useless extension candidates. Maximal degree in co-relation 34869. Up to 1818 conditions per place. [2022-11-20 12:17:44,740 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 67 selfloop transitions, 29 changer transitions 15/285 dead transitions. [2022-11-20 12:17:44,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 285 transitions, 4546 flow [2022-11-20 12:17:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:17:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 12:17:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1139 transitions. [2022-11-20 12:17:44,744 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8375 [2022-11-20 12:17:44,744 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1139 transitions. [2022-11-20 12:17:44,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1139 transitions. [2022-11-20 12:17:44,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:44,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1139 transitions. [2022-11-20 12:17:44,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:44,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:44,752 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:44,752 INFO L175 Difference]: Start difference. First operand has 209 places, 264 transitions, 3735 flow. Second operand 10 states and 1139 transitions. [2022-11-20 12:17:44,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 285 transitions, 4546 flow [2022-11-20 12:17:45,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 285 transitions, 4392 flow, removed 70 selfloop flow, removed 10 redundant places. [2022-11-20 12:17:45,091 INFO L231 Difference]: Finished difference. Result has 206 places, 269 transitions, 3869 flow [2022-11-20 12:17:45,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3661, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3869, PETRI_PLACES=206, PETRI_TRANSITIONS=269} [2022-11-20 12:17:45,093 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 63 predicate places. [2022-11-20 12:17:45,093 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 269 transitions, 3869 flow [2022-11-20 12:17:45,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 111.81818181818181) internal successors, (1230), 11 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:45,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:45,094 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:45,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:17:45,095 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:45,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:45,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1133105913, now seen corresponding path program 2 times [2022-11-20 12:17:45,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:45,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668760499] [2022-11-20 12:17:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:45,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:46,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:46,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:46,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668760499] [2022-11-20 12:17:46,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668760499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:46,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:46,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:17:46,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886990783] [2022-11-20 12:17:46,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:46,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:17:46,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:46,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:17:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:17:46,610 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 136 [2022-11-20 12:17:46,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 269 transitions, 3869 flow. Second operand has 12 states, 12 states have (on average 111.66666666666667) internal successors, (1340), 12 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:46,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:46,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 136 [2022-11-20 12:17:46,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:48,457 INFO L130 PetriNetUnfolder]: 1791/4769 cut-off events. [2022-11-20 12:17:48,457 INFO L131 PetriNetUnfolder]: For 88195/182178 co-relation queries the response was YES. [2022-11-20 12:17:48,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35452 conditions, 4769 events. 1791/4769 cut-off events. For 88195/182178 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 44080 event pairs, 290 based on Foata normal form. 255/4821 useless extension candidates. Maximal degree in co-relation 35312. Up to 1846 conditions per place. [2022-11-20 12:17:48,740 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 70 selfloop transitions, 28 changer transitions 17/289 dead transitions. [2022-11-20 12:17:48,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 289 transitions, 4597 flow [2022-11-20 12:17:48,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:48,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 12:17:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1473 transitions. [2022-11-20 12:17:48,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8331447963800905 [2022-11-20 12:17:48,743 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1473 transitions. [2022-11-20 12:17:48,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1473 transitions. [2022-11-20 12:17:48,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:48,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1473 transitions. [2022-11-20 12:17:48,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.3076923076923) internal successors, (1473), 13 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:48,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:48,752 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:48,752 INFO L175 Difference]: Start difference. First operand has 206 places, 269 transitions, 3869 flow. Second operand 13 states and 1473 transitions. [2022-11-20 12:17:48,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 289 transitions, 4597 flow [2022-11-20 12:17:49,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 289 transitions, 4522 flow, removed 15 selfloop flow, removed 8 redundant places. [2022-11-20 12:17:49,083 INFO L231 Difference]: Finished difference. Result has 214 places, 271 transitions, 3971 flow [2022-11-20 12:17:49,084 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3802, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3971, PETRI_PLACES=214, PETRI_TRANSITIONS=271} [2022-11-20 12:17:49,084 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 71 predicate places. [2022-11-20 12:17:49,084 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 271 transitions, 3971 flow [2022-11-20 12:17:49,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 111.66666666666667) internal successors, (1340), 12 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:49,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:49,085 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:49,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:17:49,086 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:49,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:49,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1216940185, now seen corresponding path program 3 times [2022-11-20 12:17:49,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:49,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909473707] [2022-11-20 12:17:49,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:49,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:50,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:50,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:50,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909473707] [2022-11-20 12:17:50,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909473707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:50,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:50,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 12:17:50,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78189088] [2022-11-20 12:17:50,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:50,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:17:50,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:50,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:17:50,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:17:50,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2022-11-20 12:17:50,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 271 transitions, 3971 flow. Second operand has 13 states, 13 states have (on average 100.23076923076923) internal successors, (1303), 13 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:50,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:50,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2022-11-20 12:17:50,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:53,521 INFO L130 PetriNetUnfolder]: 2096/5383 cut-off events. [2022-11-20 12:17:53,522 INFO L131 PetriNetUnfolder]: For 116770/237140 co-relation queries the response was YES. [2022-11-20 12:17:53,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42125 conditions, 5383 events. 2096/5383 cut-off events. For 116770/237140 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 48873 event pairs, 162 based on Foata normal form. 533/5730 useless extension candidates. Maximal degree in co-relation 41975. Up to 1895 conditions per place. [2022-11-20 12:17:53,605 INFO L137 encePairwiseOnDemand]: 114/136 looper letters, 139 selfloop transitions, 106 changer transitions 73/399 dead transitions. [2022-11-20 12:17:53,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 399 transitions, 7255 flow [2022-11-20 12:17:53,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 12:17:53,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 12:17:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2081 transitions. [2022-11-20 12:17:53,609 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7650735294117647 [2022-11-20 12:17:53,609 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2081 transitions. [2022-11-20 12:17:53,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2081 transitions. [2022-11-20 12:17:53,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:53,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2081 transitions. [2022-11-20 12:17:53,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 104.05) internal successors, (2081), 20 states have internal predecessors, (2081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:53,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 136.0) internal successors, (2856), 21 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:53,621 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 136.0) internal successors, (2856), 21 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:53,622 INFO L175 Difference]: Start difference. First operand has 214 places, 271 transitions, 3971 flow. Second operand 20 states and 2081 transitions. [2022-11-20 12:17:53,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 399 transitions, 7255 flow [2022-11-20 12:17:54,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 399 transitions, 7053 flow, removed 77 selfloop flow, removed 11 redundant places. [2022-11-20 12:17:54,276 INFO L231 Difference]: Finished difference. Result has 230 places, 301 transitions, 5010 flow [2022-11-20 12:17:54,277 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3881, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5010, PETRI_PLACES=230, PETRI_TRANSITIONS=301} [2022-11-20 12:17:54,277 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 87 predicate places. [2022-11-20 12:17:54,278 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 301 transitions, 5010 flow [2022-11-20 12:17:54,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 100.23076923076923) internal successors, (1303), 13 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:54,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:54,279 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:54,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:17:54,279 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:54,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:54,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2006098907, now seen corresponding path program 4 times [2022-11-20 12:17:54,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:54,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185923346] [2022-11-20 12:17:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:54,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:55,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:55,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:55,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185923346] [2022-11-20 12:17:55,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185923346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:55,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:55,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:17:55,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997673270] [2022-11-20 12:17:55,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:55,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:17:55,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:55,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:17:55,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:17:55,763 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-20 12:17:55,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 301 transitions, 5010 flow. Second operand has 11 states, 11 states have (on average 101.54545454545455) internal successors, (1117), 11 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:55,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:55,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-20 12:17:55,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:58,605 INFO L130 PetriNetUnfolder]: 2101/5708 cut-off events. [2022-11-20 12:17:58,606 INFO L131 PetriNetUnfolder]: For 137824/323039 co-relation queries the response was YES. [2022-11-20 12:17:58,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46787 conditions, 5708 events. 2101/5708 cut-off events. For 137824/323039 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 55571 event pairs, 192 based on Foata normal form. 141/5719 useless extension candidates. Maximal degree in co-relation 46625. Up to 1933 conditions per place. [2022-11-20 12:17:58,690 INFO L137 encePairwiseOnDemand]: 120/136 looper letters, 179 selfloop transitions, 97 changer transitions 96/454 dead transitions. [2022-11-20 12:17:58,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 454 transitions, 9462 flow [2022-11-20 12:17:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 12:17:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 12:17:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1810 transitions. [2022-11-20 12:17:58,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.782871972318339 [2022-11-20 12:17:58,693 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1810 transitions. [2022-11-20 12:17:58,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1810 transitions. [2022-11-20 12:17:58,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:58,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1810 transitions. [2022-11-20 12:17:58,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 106.47058823529412) internal successors, (1810), 17 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:58,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:58,702 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:58,702 INFO L175 Difference]: Start difference. First operand has 230 places, 301 transitions, 5010 flow. Second operand 17 states and 1810 transitions. [2022-11-20 12:17:58,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 454 transitions, 9462 flow [2022-11-20 12:17:59,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 454 transitions, 9187 flow, removed 124 selfloop flow, removed 12 redundant places. [2022-11-20 12:17:59,212 INFO L231 Difference]: Finished difference. Result has 237 places, 329 transitions, 6029 flow [2022-11-20 12:17:59,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=4879, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6029, PETRI_PLACES=237, PETRI_TRANSITIONS=329} [2022-11-20 12:17:59,213 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 94 predicate places. [2022-11-20 12:17:59,213 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 329 transitions, 6029 flow [2022-11-20 12:17:59,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 101.54545454545455) internal successors, (1117), 11 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:59,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:59,214 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:59,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:17:59,214 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:17:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:59,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1748407055, now seen corresponding path program 1 times [2022-11-20 12:17:59,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:59,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238087414] [2022-11-20 12:17:59,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:59,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:59,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:59,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238087414] [2022-11-20 12:17:59,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238087414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:59,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:59,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:17:59,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737593380] [2022-11-20 12:17:59,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:59,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:17:59,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:59,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:17:59,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:17:59,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2022-11-20 12:17:59,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 329 transitions, 6029 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:59,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:59,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2022-11-20 12:17:59,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:18:14,839 INFO L130 PetriNetUnfolder]: 23711/43657 cut-off events. [2022-11-20 12:18:14,839 INFO L131 PetriNetUnfolder]: For 1082740/1177906 co-relation queries the response was YES. [2022-11-20 12:18:15,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238989 conditions, 43657 events. 23711/43657 cut-off events. For 1082740/1177906 co-relation queries the response was YES. Maximal size of possible extension queue 3260. Compared 449542 event pairs, 1115 based on Foata normal form. 3019/43827 useless extension candidates. Maximal degree in co-relation 238834. Up to 14981 conditions per place. [2022-11-20 12:18:15,696 INFO L137 encePairwiseOnDemand]: 125/136 looper letters, 297 selfloop transitions, 20 changer transitions 95/630 dead transitions. [2022-11-20 12:18:15,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 630 transitions, 14285 flow [2022-11-20 12:18:15,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:18:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 12:18:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1194 transitions. [2022-11-20 12:18:15,698 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779411764705882 [2022-11-20 12:18:15,699 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1194 transitions. [2022-11-20 12:18:15,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1194 transitions. [2022-11-20 12:18:15,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:18:15,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1194 transitions. [2022-11-20 12:18:15,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 119.4) internal successors, (1194), 10 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:18:15,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:18:15,707 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:18:15,707 INFO L175 Difference]: Start difference. First operand has 237 places, 329 transitions, 6029 flow. Second operand 10 states and 1194 transitions. [2022-11-20 12:18:15,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 630 transitions, 14285 flow [2022-11-20 12:18:18,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 630 transitions, 13928 flow, removed 41 selfloop flow, removed 15 redundant places. [2022-11-20 12:18:18,424 INFO L231 Difference]: Finished difference. Result has 228 places, 342 transitions, 5951 flow [2022-11-20 12:18:18,425 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=5808, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5951, PETRI_PLACES=228, PETRI_TRANSITIONS=342} [2022-11-20 12:18:18,426 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 85 predicate places. [2022-11-20 12:18:18,426 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 342 transitions, 5951 flow [2022-11-20 12:18:18,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:18:18,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:18:18,427 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] [2022-11-20 12:18:18,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:18:18,427 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 12:18:18,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:18,427 INFO L85 PathProgramCache]: Analyzing trace with hash -437255427, now seen corresponding path program 1 times [2022-11-20 12:18:18,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:18:18,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391545525] [2022-11-20 12:18:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:18,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:18:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:18:18,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:18:18,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391545525] [2022-11-20 12:18:18,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391545525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:18:18,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:18:18,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:18:18,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617568251] [2022-11-20 12:18:18,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:18:18,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:18:18,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:18:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:18:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:18:18,701 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2022-11-20 12:18:18,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 342 transitions, 5951 flow. Second operand has 7 states, 7 states have (on average 113.28571428571429) internal successors, (793), 7 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:18:18,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:18:18,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2022-11-20 12:18:18,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand