./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc --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 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --- 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-5e519f3 [2022-11-02 21:00:33,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:00:33,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:00:34,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:00:34,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:00:34,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:00:34,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:00:34,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:00:34,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:00:34,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:00:34,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:00:34,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:00:34,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:00:34,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:00:34,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:00:34,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:00:34,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:00:34,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:00:34,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:00:34,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:00:34,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:00:34,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:00:34,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:00:34,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:00:34,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:00:34,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:00:34,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:00:34,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:00:34,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:00:34,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:00:34,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:00:34,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:00:34,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:00:34,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:00:34,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:00:34,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:00:34,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:00:34,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:00:34,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:00:34,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:00:34,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:00:34,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 21:00:34,151 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:00:34,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:00:34,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:00:34,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:00:34,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:00:34,153 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:00:34,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:00:34,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:00:34,155 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:00:34,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:00:34,156 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:00:34,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:00:34,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:00:34,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:00:34,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:00:34,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:00:34,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:00:34,157 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:00:34,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:00:34,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:00:34,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:00:34,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:00:34,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:00:34,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:00:34,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:00:34,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:00:34,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:00:34,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:00:34,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:00:34,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:00:34,161 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:00:34,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:00:34,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:00:34,162 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_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa [2022-11-02 21:00:34,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:00:34,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:00:34,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:00:34,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:00:34,506 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:00:34,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-02 21:00:34,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/data/7c4e221ec/d20ae0665a6f4cf49935aaf5e3a5b977/FLAG0b3a6afda [2022-11-02 21:00:35,246 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:00:35,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-02 21:00:35,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/data/7c4e221ec/d20ae0665a6f4cf49935aaf5e3a5b977/FLAG0b3a6afda [2022-11-02 21:00:35,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/data/7c4e221ec/d20ae0665a6f4cf49935aaf5e3a5b977 [2022-11-02 21:00:35,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:00:35,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:00:35,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:00:35,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:00:35,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:00:35,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44baa11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35, skipping insertion in model container [2022-11-02 21:00:35,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:00:35,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:00:35,880 WARN L230 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_2b891706-b048-419f-884c-7dac45a59971/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-11-02 21:00:36,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:00:36,203 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:00:36,215 WARN L230 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_2b891706-b048-419f-884c-7dac45a59971/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-11-02 21:00:36,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:00:36,299 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:00:36,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36 WrapperNode [2022-11-02 21:00:36,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:00:36,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:00:36,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:00:36,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:00:36,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,363 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 366 [2022-11-02 21:00:36,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:00:36,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:00:36,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:00:36,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:00:36,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,402 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:00:36,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:00:36,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:00:36,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:00:36,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (1/1) ... [2022-11-02 21:00:36,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:00:36,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:36,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:00:36,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:00:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:00:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 21:00:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:00:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:00:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:00:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-02 21:00:36,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-02 21:00:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-02 21:00:36,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-02 21:00:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:00:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 21:00:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:00:36,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:00:36,510 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:00:36,681 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:00:36,692 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:00:37,940 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:00:38,829 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:00:38,829 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:00:38,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:38 BoogieIcfgContainer [2022-11-02 21:00:38,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:00:38,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:00:38,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:00:38,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:00:38,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:00:35" (1/3) ... [2022-11-02 21:00:38,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24411bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:00:38, skipping insertion in model container [2022-11-02 21:00:38,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:36" (2/3) ... [2022-11-02 21:00:38,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24411bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:00:38, skipping insertion in model container [2022-11-02 21:00:38,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:38" (3/3) ... [2022-11-02 21:00:38,850 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-02 21:00:38,862 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:00:38,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:00:38,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 21:00:38,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:00:39,007 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 21:00:39,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 99 transitions, 208 flow [2022-11-02 21:00:39,160 INFO L130 PetriNetUnfolder]: 2/97 cut-off events. [2022-11-02 21:00:39,161 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:39,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-02 21:00:39,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 99 transitions, 208 flow [2022-11-02 21:00:39,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 97 transitions, 200 flow [2022-11-02 21:00:39,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:00:39,203 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;@46e489b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:00:39,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-02 21:00:39,238 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-11-02 21:00:39,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:39,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:39,240 INFO L208 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] [2022-11-02 21:00:39,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:39,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:39,247 INFO L85 PathProgramCache]: Analyzing trace with hash -491542144, now seen corresponding path program 1 times [2022-11-02 21:00:39,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:39,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683155053] [2022-11-02 21:00:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:39,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:39,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:39,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683155053] [2022-11-02 21:00:39,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683155053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:39,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:39,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:39,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736155223] [2022-11-02 21:00:39,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:39,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:39,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:39,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:39,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:40,005 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 99 [2022-11-02 21:00:40,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2022-11-02 21:00:40,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:40,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 99 [2022-11-02 21:00:40,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:40,342 INFO L130 PetriNetUnfolder]: 60/468 cut-off events. [2022-11-02 21:00:40,343 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 21:00:40,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 468 events. 60/468 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2645 event pairs, 25 based on Foata normal form. 23/460 useless extension candidates. Maximal degree in co-relation 546. Up to 88 conditions per place. [2022-11-02 21:00:40,352 INFO L137 encePairwiseOnDemand]: 94/99 looper letters, 14 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2022-11-02 21:00:40,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 98 transitions, 234 flow [2022-11-02 21:00:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:40,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:40,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-11-02 21:00:40,377 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9191919191919192 [2022-11-02 21:00:40,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-11-02 21:00:40,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-11-02 21:00:40,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:40,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-11-02 21:00:40,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2022-11-02 21:00:40,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2022-11-02 21:00:40,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2022-11-02 21:00:40,400 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 200 flow. Second operand 3 states and 273 transitions. [2022-11-02 21:00:40,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 98 transitions, 234 flow [2022-11-02 21:00:40,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 98 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:40,407 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 194 flow [2022-11-02 21:00:40,409 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2022-11-02 21:00:40,412 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, -2 predicate places. [2022-11-02 21:00:40,412 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 194 flow [2022-11-02 21:00:40,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2022-11-02 21:00:40,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:40,413 INFO L208 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] [2022-11-02 21:00:40,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:00:40,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:40,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:40,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1591079342, now seen corresponding path program 1 times [2022-11-02 21:00:40,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:40,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47085917] [2022-11-02 21:00:40,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:40,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:40,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:40,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47085917] [2022-11-02 21:00:40,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47085917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:40,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:40,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:00:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695098024] [2022-11-02 21:00:40,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:40,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:00:40,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:00:40,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:00:40,862 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 99 [2022-11-02 21:00:40,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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) [2022-11-02 21:00:40,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:40,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 99 [2022-11-02 21:00:40,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:41,522 INFO L130 PetriNetUnfolder]: 208/704 cut-off events. [2022-11-02 21:00:41,522 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-11-02 21:00:41,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 704 events. 208/704 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4206 event pairs, 38 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1082. Up to 149 conditions per place. [2022-11-02 21:00:41,527 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 19 selfloop transitions, 2 changer transitions 46/134 dead transitions. [2022-11-02 21:00:41,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 134 transitions, 408 flow [2022-11-02 21:00:41,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:00:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:00:41,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 762 transitions. [2022-11-02 21:00:41,531 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8552188552188552 [2022-11-02 21:00:41,531 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 762 transitions. [2022-11-02 21:00:41,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 762 transitions. [2022-11-02 21:00:41,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:41,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 762 transitions. [2022-11-02 21:00:41,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.66666666666667) internal successors, (762), 9 states have internal predecessors, (762), 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) [2022-11-02 21:00:41,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-11-02 21:00:41,540 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-11-02 21:00:41,540 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 194 flow. Second operand 9 states and 762 transitions. [2022-11-02 21:00:41,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 134 transitions, 408 flow [2022-11-02 21:00:41,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 134 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:41,545 INFO L231 Difference]: Finished difference. Result has 113 places, 83 transitions, 190 flow [2022-11-02 21:00:41,545 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=113, PETRI_TRANSITIONS=83} [2022-11-02 21:00:41,546 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2022-11-02 21:00:41,546 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 83 transitions, 190 flow [2022-11-02 21:00:41,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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) [2022-11-02 21:00:41,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:41,548 INFO L208 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] [2022-11-02 21:00:41,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:00:41,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:41,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1510729138, now seen corresponding path program 1 times [2022-11-02 21:00:41,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:41,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304715523] [2022-11-02 21:00:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:42,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:42,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:42,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304715523] [2022-11-02 21:00:42,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304715523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:42,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:42,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:00:42,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012888265] [2022-11-02 21:00:42,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:42,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:00:42,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:42,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:00:42,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:00:42,127 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 99 [2022-11-02 21:00:42,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 83 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2022-11-02 21:00:42,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:42,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 99 [2022-11-02 21:00:42,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:42,583 INFO L130 PetriNetUnfolder]: 127/381 cut-off events. [2022-11-02 21:00:42,583 INFO L131 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2022-11-02 21:00:42,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 381 events. 127/381 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1566 event pairs, 36 based on Foata normal form. 10/372 useless extension candidates. Maximal degree in co-relation 699. Up to 120 conditions per place. [2022-11-02 21:00:42,587 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 19 selfloop transitions, 2 changer transitions 25/112 dead transitions. [2022-11-02 21:00:42,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 112 transitions, 361 flow [2022-11-02 21:00:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:00:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:00:42,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2022-11-02 21:00:42,591 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8316498316498316 [2022-11-02 21:00:42,591 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2022-11-02 21:00:42,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2022-11-02 21:00:42,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:42,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2022-11-02 21:00:42,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 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) [2022-11-02 21:00:42,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-11-02 21:00:42,599 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-11-02 21:00:42,599 INFO L175 Difference]: Start difference. First operand has 113 places, 83 transitions, 190 flow. Second operand 9 states and 741 transitions. [2022-11-02 21:00:42,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 112 transitions, 361 flow [2022-11-02 21:00:42,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 327 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-11-02 21:00:42,610 INFO L231 Difference]: Finished difference. Result has 104 places, 83 transitions, 194 flow [2022-11-02 21:00:42,610 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=194, PETRI_PLACES=104, PETRI_TRANSITIONS=83} [2022-11-02 21:00:42,613 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2022-11-02 21:00:42,613 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 83 transitions, 194 flow [2022-11-02 21:00:42,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2022-11-02 21:00:42,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:42,615 INFO L208 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] [2022-11-02 21:00:42,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:00:42,615 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:42,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:42,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1028990539, now seen corresponding path program 1 times [2022-11-02 21:00:42,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:42,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744700472] [2022-11-02 21:00:42,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:42,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:44,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:44,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:44,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744700472] [2022-11-02 21:00:44,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744700472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:44,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:44,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-02 21:00:44,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472136015] [2022-11-02 21:00:44,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:44,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 21:00:44,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:44,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 21:00:44,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:00:44,716 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-11-02 21:00:44,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 83 transitions, 194 flow. Second operand has 14 states, 14 states have (on average 74.28571428571429) internal successors, (1040), 14 states have internal predecessors, (1040), 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) [2022-11-02 21:00:44,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:44,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-11-02 21:00:44,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:45,558 INFO L130 PetriNetUnfolder]: 120/374 cut-off events. [2022-11-02 21:00:45,558 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2022-11-02 21:00:45,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 374 events. 120/374 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1515 event pairs, 16 based on Foata normal form. 7/358 useless extension candidates. Maximal degree in co-relation 691. Up to 136 conditions per place. [2022-11-02 21:00:45,562 INFO L137 encePairwiseOnDemand]: 84/99 looper letters, 22 selfloop transitions, 13 changer transitions 22/119 dead transitions. [2022-11-02 21:00:45,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 119 transitions, 404 flow [2022-11-02 21:00:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:00:45,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:00:45,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1081 transitions. [2022-11-02 21:00:45,567 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7799422799422799 [2022-11-02 21:00:45,567 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1081 transitions. [2022-11-02 21:00:45,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1081 transitions. [2022-11-02 21:00:45,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:45,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1081 transitions. [2022-11-02 21:00:45,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 77.21428571428571) internal successors, (1081), 14 states have internal predecessors, (1081), 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) [2022-11-02 21:00:45,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 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) [2022-11-02 21:00:45,577 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 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) [2022-11-02 21:00:45,577 INFO L175 Difference]: Start difference. First operand has 104 places, 83 transitions, 194 flow. Second operand 14 states and 1081 transitions. [2022-11-02 21:00:45,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 119 transitions, 404 flow [2022-11-02 21:00:45,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 119 transitions, 372 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-11-02 21:00:45,584 INFO L231 Difference]: Finished difference. Result has 110 places, 90 transitions, 262 flow [2022-11-02 21:00:45,586 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=262, PETRI_PLACES=110, PETRI_TRANSITIONS=90} [2022-11-02 21:00:45,587 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 8 predicate places. [2022-11-02 21:00:45,588 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 90 transitions, 262 flow [2022-11-02 21:00:45,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 74.28571428571429) internal successors, (1040), 14 states have internal predecessors, (1040), 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) [2022-11-02 21:00:45,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:45,592 INFO L208 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] [2022-11-02 21:00:45,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:00:45,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:45,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:45,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1474894337, now seen corresponding path program 2 times [2022-11-02 21:00:45,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:45,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008252906] [2022-11-02 21:00:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:45,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:47,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:47,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008252906] [2022-11-02 21:00:47,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008252906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:47,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:47,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-02 21:00:47,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265588291] [2022-11-02 21:00:47,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:47,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:00:47,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:47,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:00:47,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:00:47,815 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 99 [2022-11-02 21:00:47,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 90 transitions, 262 flow. Second operand has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 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) [2022-11-02 21:00:47,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:47,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 99 [2022-11-02 21:00:47,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:48,761 INFO L130 PetriNetUnfolder]: 124/391 cut-off events. [2022-11-02 21:00:48,762 INFO L131 PetriNetUnfolder]: For 594/610 co-relation queries the response was YES. [2022-11-02 21:00:48,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 391 events. 124/391 cut-off events. For 594/610 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1583 event pairs, 23 based on Foata normal form. 14/378 useless extension candidates. Maximal degree in co-relation 1085. Up to 151 conditions per place. [2022-11-02 21:00:48,766 INFO L137 encePairwiseOnDemand]: 84/99 looper letters, 28 selfloop transitions, 17 changer transitions 22/128 dead transitions. [2022-11-02 21:00:48,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 128 transitions, 642 flow [2022-11-02 21:00:48,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:00:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:00:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1146 transitions. [2022-11-02 21:00:48,771 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7717171717171717 [2022-11-02 21:00:48,772 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1146 transitions. [2022-11-02 21:00:48,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1146 transitions. [2022-11-02 21:00:48,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:48,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1146 transitions. [2022-11-02 21:00:48,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.4) internal successors, (1146), 15 states have internal predecessors, (1146), 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) [2022-11-02 21:00:48,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-11-02 21:00:48,781 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-11-02 21:00:48,782 INFO L175 Difference]: Start difference. First operand has 110 places, 90 transitions, 262 flow. Second operand 15 states and 1146 transitions. [2022-11-02 21:00:48,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 128 transitions, 642 flow [2022-11-02 21:00:48,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 128 transitions, 623 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-11-02 21:00:48,788 INFO L231 Difference]: Finished difference. Result has 120 places, 98 transitions, 378 flow [2022-11-02 21:00:48,789 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=378, PETRI_PLACES=120, PETRI_TRANSITIONS=98} [2022-11-02 21:00:48,790 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 18 predicate places. [2022-11-02 21:00:48,790 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 98 transitions, 378 flow [2022-11-02 21:00:48,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 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) [2022-11-02 21:00:48,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:48,791 INFO L208 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] [2022-11-02 21:00:48,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:00:48,792 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:48,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:48,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1128229069, now seen corresponding path program 3 times [2022-11-02 21:00:48,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:48,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941987891] [2022-11-02 21:00:48,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:48,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:50,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:50,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941987891] [2022-11-02 21:00:50,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941987891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:50,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:50,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:00:50,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311654593] [2022-11-02 21:00:50,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:50,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:00:50,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:50,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:00:50,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:00:50,879 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-11-02 21:00:50,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 98 transitions, 378 flow. Second operand has 11 states, 11 states have (on average 74.63636363636364) internal successors, (821), 11 states have internal predecessors, (821), 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) [2022-11-02 21:00:50,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:50,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-11-02 21:00:50,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:51,624 INFO L130 PetriNetUnfolder]: 134/410 cut-off events. [2022-11-02 21:00:51,624 INFO L131 PetriNetUnfolder]: For 2138/2196 co-relation queries the response was YES. [2022-11-02 21:00:51,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 410 events. 134/410 cut-off events. For 2138/2196 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1694 event pairs, 26 based on Foata normal form. 12/394 useless extension candidates. Maximal degree in co-relation 1584. Up to 175 conditions per place. [2022-11-02 21:00:51,629 INFO L137 encePairwiseOnDemand]: 87/99 looper letters, 39 selfloop transitions, 11 changer transitions 19/131 dead transitions. [2022-11-02 21:00:51,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 845 flow [2022-11-02 21:00:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:00:51,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 21:00:51,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1005 transitions. [2022-11-02 21:00:51,632 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7808857808857809 [2022-11-02 21:00:51,632 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1005 transitions. [2022-11-02 21:00:51,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1005 transitions. [2022-11-02 21:00:51,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:51,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1005 transitions. [2022-11-02 21:00:51,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.3076923076923) internal successors, (1005), 13 states have internal predecessors, (1005), 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) [2022-11-02 21:00:51,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-11-02 21:00:51,639 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-11-02 21:00:51,639 INFO L175 Difference]: Start difference. First operand has 120 places, 98 transitions, 378 flow. Second operand 13 states and 1005 transitions. [2022-11-02 21:00:51,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 845 flow [2022-11-02 21:00:51,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 131 transitions, 708 flow, removed 64 selfloop flow, removed 10 redundant places. [2022-11-02 21:00:51,646 INFO L231 Difference]: Finished difference. Result has 124 places, 103 transitions, 420 flow [2022-11-02 21:00:51,647 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=420, PETRI_PLACES=124, PETRI_TRANSITIONS=103} [2022-11-02 21:00:51,647 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 22 predicate places. [2022-11-02 21:00:51,648 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 103 transitions, 420 flow [2022-11-02 21:00:51,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.63636363636364) internal successors, (821), 11 states have internal predecessors, (821), 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) [2022-11-02 21:00:51,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:51,648 INFO L208 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] [2022-11-02 21:00:51,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:00:51,649 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:51,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:51,649 INFO L85 PathProgramCache]: Analyzing trace with hash 504070605, now seen corresponding path program 4 times [2022-11-02 21:00:51,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:51,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913215968] [2022-11-02 21:00:51,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:51,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:53,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:53,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913215968] [2022-11-02 21:00:53,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913215968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:53,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:53,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-02 21:00:53,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253956912] [2022-11-02 21:00:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:53,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:00:53,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:00:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:00:53,991 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 99 [2022-11-02 21:00:53,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 103 transitions, 420 flow. Second operand has 18 states, 18 states have (on average 67.27777777777777) internal successors, (1211), 18 states have internal predecessors, (1211), 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) [2022-11-02 21:00:53,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:53,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 99 [2022-11-02 21:00:53,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:55,918 INFO L130 PetriNetUnfolder]: 352/908 cut-off events. [2022-11-02 21:00:55,918 INFO L131 PetriNetUnfolder]: For 4034/4111 co-relation queries the response was YES. [2022-11-02 21:00:55,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3301 conditions, 908 events. 352/908 cut-off events. For 4034/4111 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5093 event pairs, 45 based on Foata normal form. 31/908 useless extension candidates. Maximal degree in co-relation 3222. Up to 279 conditions per place. [2022-11-02 21:00:55,928 INFO L137 encePairwiseOnDemand]: 81/99 looper letters, 68 selfloop transitions, 33 changer transitions 67/223 dead transitions. [2022-11-02 21:00:55,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 223 transitions, 1706 flow [2022-11-02 21:00:55,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-02 21:00:55,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-02 21:00:55,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2330 transitions. [2022-11-02 21:00:55,936 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7131925313743496 [2022-11-02 21:00:55,936 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2330 transitions. [2022-11-02 21:00:55,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2330 transitions. [2022-11-02 21:00:55,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:55,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2330 transitions. [2022-11-02 21:00:55,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 70.60606060606061) internal successors, (2330), 33 states have internal predecessors, (2330), 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) [2022-11-02 21:00:55,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 99.0) internal successors, (3366), 34 states have internal predecessors, (3366), 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) [2022-11-02 21:00:55,954 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 99.0) internal successors, (3366), 34 states have internal predecessors, (3366), 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) [2022-11-02 21:00:55,954 INFO L175 Difference]: Start difference. First operand has 124 places, 103 transitions, 420 flow. Second operand 33 states and 2330 transitions. [2022-11-02 21:00:55,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 223 transitions, 1706 flow [2022-11-02 21:00:55,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 223 transitions, 1509 flow, removed 92 selfloop flow, removed 9 redundant places. [2022-11-02 21:00:55,968 INFO L231 Difference]: Finished difference. Result has 165 places, 122 transitions, 720 flow [2022-11-02 21:00:55,969 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=720, PETRI_PLACES=165, PETRI_TRANSITIONS=122} [2022-11-02 21:00:55,969 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 63 predicate places. [2022-11-02 21:00:55,970 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 122 transitions, 720 flow [2022-11-02 21:00:55,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 67.27777777777777) internal successors, (1211), 18 states have internal predecessors, (1211), 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) [2022-11-02 21:00:55,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:55,971 INFO L208 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] [2022-11-02 21:00:55,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:00:55,971 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:55,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:55,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1558082475, now seen corresponding path program 5 times [2022-11-02 21:00:55,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:55,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24386619] [2022-11-02 21:00:55,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:55,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:57,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:57,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:57,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24386619] [2022-11-02 21:00:57,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24386619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:57,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:57,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:00:57,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896890797] [2022-11-02 21:00:57,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:57,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:00:57,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:57,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:00:57,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:00:57,438 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-11-02 21:00:57,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 122 transitions, 720 flow. Second operand has 11 states, 11 states have (on average 74.63636363636364) internal successors, (821), 11 states have internal predecessors, (821), 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) [2022-11-02 21:00:57,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:57,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-11-02 21:00:57,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:58,260 INFO L130 PetriNetUnfolder]: 183/576 cut-off events. [2022-11-02 21:00:58,261 INFO L131 PetriNetUnfolder]: For 4071/4303 co-relation queries the response was YES. [2022-11-02 21:00:58,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2532 conditions, 576 events. 183/576 cut-off events. For 4071/4303 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2914 event pairs, 37 based on Foata normal form. 39/580 useless extension candidates. Maximal degree in co-relation 2433. Up to 206 conditions per place. [2022-11-02 21:00:58,270 INFO L137 encePairwiseOnDemand]: 87/99 looper letters, 34 selfloop transitions, 31 changer transitions 25/157 dead transitions. [2022-11-02 21:00:58,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 157 transitions, 1262 flow [2022-11-02 21:00:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:00:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:00:58,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1154 transitions. [2022-11-02 21:00:58,277 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7771043771043771 [2022-11-02 21:00:58,278 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1154 transitions. [2022-11-02 21:00:58,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1154 transitions. [2022-11-02 21:00:58,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:58,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1154 transitions. [2022-11-02 21:00:58,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.93333333333334) internal successors, (1154), 15 states have internal predecessors, (1154), 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) [2022-11-02 21:00:58,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-11-02 21:00:58,296 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-11-02 21:00:58,296 INFO L175 Difference]: Start difference. First operand has 165 places, 122 transitions, 720 flow. Second operand 15 states and 1154 transitions. [2022-11-02 21:00:58,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 157 transitions, 1262 flow [2022-11-02 21:00:58,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 157 transitions, 1127 flow, removed 61 selfloop flow, removed 21 redundant places. [2022-11-02 21:00:58,324 INFO L231 Difference]: Finished difference. Result has 147 places, 124 transitions, 762 flow [2022-11-02 21:00:58,325 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=762, PETRI_PLACES=147, PETRI_TRANSITIONS=124} [2022-11-02 21:00:58,329 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2022-11-02 21:00:58,330 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 124 transitions, 762 flow [2022-11-02 21:00:58,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.63636363636364) internal successors, (821), 11 states have internal predecessors, (821), 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) [2022-11-02 21:00:58,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:58,331 INFO L208 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] [2022-11-02 21:00:58,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:00:58,332 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:58,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash 487450421, now seen corresponding path program 1 times [2022-11-02 21:00:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:58,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372887241] [2022-11-02 21:00:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:58,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:58,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:58,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372887241] [2022-11-02 21:00:58,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372887241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:58,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:58,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:00:58,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122589317] [2022-11-02 21:00:58,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:58,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:00:58,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:00:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:00:58,944 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 99 [2022-11-02 21:00:58,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 124 transitions, 762 flow. Second operand has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:58,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:58,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 99 [2022-11-02 21:00:58,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:59,485 INFO L130 PetriNetUnfolder]: 176/603 cut-off events. [2022-11-02 21:00:59,486 INFO L131 PetriNetUnfolder]: For 3542/3938 co-relation queries the response was YES. [2022-11-02 21:00:59,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2705 conditions, 603 events. 176/603 cut-off events. For 3542/3938 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3403 event pairs, 60 based on Foata normal form. 57/620 useless extension candidates. Maximal degree in co-relation 2616. Up to 213 conditions per place. [2022-11-02 21:00:59,493 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 46 selfloop transitions, 11 changer transitions 28/155 dead transitions. [2022-11-02 21:00:59,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 155 transitions, 1264 flow [2022-11-02 21:00:59,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:00:59,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-02 21:00:59,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 565 transitions. [2022-11-02 21:00:59,495 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8152958152958153 [2022-11-02 21:00:59,496 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 565 transitions. [2022-11-02 21:00:59,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 565 transitions. [2022-11-02 21:00:59,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:59,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 565 transitions. [2022-11-02 21:00:59,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 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) [2022-11-02 21:00:59,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 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) [2022-11-02 21:00:59,499 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 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) [2022-11-02 21:00:59,499 INFO L175 Difference]: Start difference. First operand has 147 places, 124 transitions, 762 flow. Second operand 7 states and 565 transitions. [2022-11-02 21:00:59,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 155 transitions, 1264 flow [2022-11-02 21:00:59,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 155 transitions, 1167 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-11-02 21:00:59,519 INFO L231 Difference]: Finished difference. Result has 140 places, 127 transitions, 772 flow [2022-11-02 21:00:59,520 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=772, PETRI_PLACES=140, PETRI_TRANSITIONS=127} [2022-11-02 21:00:59,520 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 38 predicate places. [2022-11-02 21:00:59,521 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 127 transitions, 772 flow [2022-11-02 21:00:59,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:59,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:59,521 INFO L208 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] [2022-11-02 21:00:59,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:00:59,522 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:00:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:59,522 INFO L85 PathProgramCache]: Analyzing trace with hash 342414929, now seen corresponding path program 2 times [2022-11-02 21:00:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:59,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821331609] [2022-11-02 21:00:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:59,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:00,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:00,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:00,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821331609] [2022-11-02 21:01:00,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821331609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:00,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:00,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:01:00,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133915322] [2022-11-02 21:01:00,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:00,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:01:00,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:00,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:01:00,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:01:00,187 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 99 [2022-11-02 21:01:00,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 127 transitions, 772 flow. Second operand has 9 states, 9 states have (on average 76.0) internal successors, (684), 9 states have internal predecessors, (684), 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) [2022-11-02 21:01:00,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:00,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 99 [2022-11-02 21:01:00,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:00,713 INFO L130 PetriNetUnfolder]: 127/478 cut-off events. [2022-11-02 21:01:00,713 INFO L131 PetriNetUnfolder]: For 2885/3320 co-relation queries the response was YES. [2022-11-02 21:01:00,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2110 conditions, 478 events. 127/478 cut-off events. For 2885/3320 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2421 event pairs, 42 based on Foata normal form. 62/510 useless extension candidates. Maximal degree in co-relation 2025. Up to 168 conditions per place. [2022-11-02 21:01:00,720 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 33 selfloop transitions, 14 changer transitions 26/141 dead transitions. [2022-11-02 21:01:00,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 1066 flow [2022-11-02 21:01:00,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:01:00,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-02 21:01:00,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 632 transitions. [2022-11-02 21:01:00,722 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.797979797979798 [2022-11-02 21:01:00,723 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 632 transitions. [2022-11-02 21:01:00,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 632 transitions. [2022-11-02 21:01:00,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:00,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 632 transitions. [2022-11-02 21:01:00,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 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) [2022-11-02 21:01:00,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 99.0) internal successors, (891), 9 states have internal predecessors, (891), 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) [2022-11-02 21:01:00,727 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 99.0) internal successors, (891), 9 states have internal predecessors, (891), 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) [2022-11-02 21:01:00,727 INFO L175 Difference]: Start difference. First operand has 140 places, 127 transitions, 772 flow. Second operand 8 states and 632 transitions. [2022-11-02 21:01:00,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 1066 flow [2022-11-02 21:01:00,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 141 transitions, 1031 flow, removed 12 selfloop flow, removed 5 redundant places. [2022-11-02 21:01:00,741 INFO L231 Difference]: Finished difference. Result has 142 places, 115 transitions, 637 flow [2022-11-02 21:01:00,741 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=637, PETRI_PLACES=142, PETRI_TRANSITIONS=115} [2022-11-02 21:01:00,742 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 40 predicate places. [2022-11-02 21:01:00,742 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 115 transitions, 637 flow [2022-11-02 21:01:00,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.0) internal successors, (684), 9 states have internal predecessors, (684), 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) [2022-11-02 21:01:00,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:00,743 INFO L208 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] [2022-11-02 21:01:00,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:01:00,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:01:00,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:00,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1534679057, now seen corresponding path program 3 times [2022-11-02 21:01:00,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:00,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996165340] [2022-11-02 21:01:00,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:00,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:03,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:03,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996165340] [2022-11-02 21:01:03,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996165340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:03,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:03,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-02 21:01:03,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851936759] [2022-11-02 21:01:03,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:03,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:01:03,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:03,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:01:03,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:01:03,369 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 99 [2022-11-02 21:01:03,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 115 transitions, 637 flow. Second operand has 18 states, 18 states have (on average 68.38888888888889) internal successors, (1231), 18 states have internal predecessors, (1231), 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) [2022-11-02 21:01:03,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:03,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 99 [2022-11-02 21:01:03,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:04,234 INFO L130 PetriNetUnfolder]: 124/474 cut-off events. [2022-11-02 21:01:04,235 INFO L131 PetriNetUnfolder]: For 2637/3039 co-relation queries the response was YES. [2022-11-02 21:01:04,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 474 events. 124/474 cut-off events. For 2637/3039 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2473 event pairs, 28 based on Foata normal form. 37/487 useless extension candidates. Maximal degree in co-relation 1993. Up to 147 conditions per place. [2022-11-02 21:01:04,241 INFO L137 encePairwiseOnDemand]: 84/99 looper letters, 39 selfloop transitions, 13 changer transitions 36/148 dead transitions. [2022-11-02 21:01:04,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 148 transitions, 1142 flow [2022-11-02 21:01:04,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:01:04,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:01:04,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1063 transitions. [2022-11-02 21:01:04,244 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7158249158249158 [2022-11-02 21:01:04,244 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1063 transitions. [2022-11-02 21:01:04,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1063 transitions. [2022-11-02 21:01:04,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:04,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1063 transitions. [2022-11-02 21:01:04,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 70.86666666666666) internal successors, (1063), 15 states have internal predecessors, (1063), 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) [2022-11-02 21:01:04,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-11-02 21:01:04,252 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-11-02 21:01:04,252 INFO L175 Difference]: Start difference. First operand has 142 places, 115 transitions, 637 flow. Second operand 15 states and 1063 transitions. [2022-11-02 21:01:04,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 148 transitions, 1142 flow [2022-11-02 21:01:04,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 148 transitions, 1073 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-02 21:01:04,264 INFO L231 Difference]: Finished difference. Result has 148 places, 108 transitions, 554 flow [2022-11-02 21:01:04,264 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=554, PETRI_PLACES=148, PETRI_TRANSITIONS=108} [2022-11-02 21:01:04,265 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 46 predicate places. [2022-11-02 21:01:04,265 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 108 transitions, 554 flow [2022-11-02 21:01:04,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 68.38888888888889) internal successors, (1231), 18 states have internal predecessors, (1231), 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) [2022-11-02 21:01:04,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:04,266 INFO L208 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] [2022-11-02 21:01:04,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:01:04,267 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:01:04,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:04,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1043340207, now seen corresponding path program 4 times [2022-11-02 21:01:04,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:04,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92995361] [2022-11-02 21:01:04,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:04,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:06,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:06,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:06,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92995361] [2022-11-02 21:01:06,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92995361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:06,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:06,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-02 21:01:06,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845919768] [2022-11-02 21:01:06,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:06,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 21:01:06,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:06,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 21:01:06,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:01:06,109 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2022-11-02 21:01:06,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 108 transitions, 554 flow. Second operand has 16 states, 16 states have (on average 69.5) internal successors, (1112), 16 states have internal predecessors, (1112), 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) [2022-11-02 21:01:06,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:06,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2022-11-02 21:01:06,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:06,818 INFO L130 PetriNetUnfolder]: 83/341 cut-off events. [2022-11-02 21:01:06,818 INFO L131 PetriNetUnfolder]: For 1665/1733 co-relation queries the response was YES. [2022-11-02 21:01:06,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 341 events. 83/341 cut-off events. For 1665/1733 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1444 event pairs, 14 based on Foata normal form. 16/343 useless extension candidates. Maximal degree in co-relation 1317. Up to 100 conditions per place. [2022-11-02 21:01:06,823 INFO L137 encePairwiseOnDemand]: 84/99 looper letters, 38 selfloop transitions, 17 changer transitions 20/136 dead transitions. [2022-11-02 21:01:06,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 136 transitions, 987 flow [2022-11-02 21:01:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:01:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 21:01:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1150 transitions. [2022-11-02 21:01:06,826 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.726010101010101 [2022-11-02 21:01:06,826 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1150 transitions. [2022-11-02 21:01:06,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1150 transitions. [2022-11-02 21:01:06,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:06,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1150 transitions. [2022-11-02 21:01:06,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 71.875) internal successors, (1150), 16 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:06,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-11-02 21:01:06,833 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-11-02 21:01:06,833 INFO L175 Difference]: Start difference. First operand has 148 places, 108 transitions, 554 flow. Second operand 16 states and 1150 transitions. [2022-11-02 21:01:06,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 136 transitions, 987 flow [2022-11-02 21:01:06,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 136 transitions, 924 flow, removed 20 selfloop flow, removed 14 redundant places. [2022-11-02 21:01:06,859 INFO L231 Difference]: Finished difference. Result has 150 places, 111 transitions, 606 flow [2022-11-02 21:01:06,859 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=606, PETRI_PLACES=150, PETRI_TRANSITIONS=111} [2022-11-02 21:01:06,860 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 48 predicate places. [2022-11-02 21:01:06,860 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 111 transitions, 606 flow [2022-11-02 21:01:06,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 69.5) internal successors, (1112), 16 states have internal predecessors, (1112), 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) [2022-11-02 21:01:06,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:06,861 INFO L208 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] [2022-11-02 21:01:06,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:01:06,862 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:01:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash -390818109, now seen corresponding path program 5 times [2022-11-02 21:01:06,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:06,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24709831] [2022-11-02 21:01:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:07,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:07,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24709831] [2022-11-02 21:01:07,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24709831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:07,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:07,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-02 21:01:07,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342834281] [2022-11-02 21:01:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:07,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 21:01:07,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 21:01:07,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:01:07,782 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 99 [2022-11-02 21:01:07,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 111 transitions, 606 flow. Second operand has 14 states, 14 states have (on average 70.64285714285714) internal successors, (989), 14 states have internal predecessors, (989), 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) [2022-11-02 21:01:07,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:07,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 99 [2022-11-02 21:01:07,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:08,530 INFO L130 PetriNetUnfolder]: 84/359 cut-off events. [2022-11-02 21:01:08,530 INFO L131 PetriNetUnfolder]: For 2734/2795 co-relation queries the response was YES. [2022-11-02 21:01:08,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1726 conditions, 359 events. 84/359 cut-off events. For 2734/2795 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1589 event pairs, 46 based on Foata normal form. 15/360 useless extension candidates. Maximal degree in co-relation 1631. Up to 106 conditions per place. [2022-11-02 21:01:08,535 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 26 selfloop transitions, 5 changer transitions 41/132 dead transitions. [2022-11-02 21:01:08,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 132 transitions, 1059 flow [2022-11-02 21:01:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:01:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 21:01:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 951 transitions. [2022-11-02 21:01:08,542 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7389277389277389 [2022-11-02 21:01:08,542 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 951 transitions. [2022-11-02 21:01:08,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 951 transitions. [2022-11-02 21:01:08,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:08,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 951 transitions. [2022-11-02 21:01:08,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.15384615384616) internal successors, (951), 13 states have internal predecessors, (951), 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) [2022-11-02 21:01:08,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-11-02 21:01:08,567 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-11-02 21:01:08,567 INFO L175 Difference]: Start difference. First operand has 150 places, 111 transitions, 606 flow. Second operand 13 states and 951 transitions. [2022-11-02 21:01:08,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 132 transitions, 1059 flow [2022-11-02 21:01:08,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 132 transitions, 993 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-11-02 21:01:08,579 INFO L231 Difference]: Finished difference. Result has 149 places, 90 transitions, 394 flow [2022-11-02 21:01:08,579 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=394, PETRI_PLACES=149, PETRI_TRANSITIONS=90} [2022-11-02 21:01:08,582 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 47 predicate places. [2022-11-02 21:01:08,582 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 90 transitions, 394 flow [2022-11-02 21:01:08,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 70.64285714285714) internal successors, (989), 14 states have internal predecessors, (989), 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) [2022-11-02 21:01:08,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:08,583 INFO L208 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] [2022-11-02 21:01:08,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:01:08,584 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:01:08,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:08,584 INFO L85 PathProgramCache]: Analyzing trace with hash 603826887, now seen corresponding path program 6 times [2022-11-02 21:01:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:08,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988892109] [2022-11-02 21:01:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:08,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:09,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:09,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988892109] [2022-11-02 21:01:09,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988892109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:09,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:09,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-02 21:01:09,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503753623] [2022-11-02 21:01:09,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:09,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:01:09,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:09,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:01:09,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:01:09,822 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 99 [2022-11-02 21:01:09,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 90 transitions, 394 flow. Second operand has 13 states, 13 states have (on average 70.76923076923077) internal successors, (920), 13 states have internal predecessors, (920), 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) [2022-11-02 21:01:09,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:09,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 99 [2022-11-02 21:01:09,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:10,746 INFO L130 PetriNetUnfolder]: 91/391 cut-off events. [2022-11-02 21:01:10,748 INFO L131 PetriNetUnfolder]: For 3203/3267 co-relation queries the response was YES. [2022-11-02 21:01:10,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 391 events. 91/391 cut-off events. For 3203/3267 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1936 event pairs, 17 based on Foata normal form. 27/412 useless extension candidates. Maximal degree in co-relation 1790. Up to 99 conditions per place. [2022-11-02 21:01:10,753 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 40 selfloop transitions, 9 changer transitions 22/131 dead transitions. [2022-11-02 21:01:10,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 131 transitions, 1136 flow [2022-11-02 21:01:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:01:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 21:01:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1172 transitions. [2022-11-02 21:01:10,757 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.73989898989899 [2022-11-02 21:01:10,757 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1172 transitions. [2022-11-02 21:01:10,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1172 transitions. [2022-11-02 21:01:10,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:10,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1172 transitions. [2022-11-02 21:01:10,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 73.25) internal successors, (1172), 16 states have internal predecessors, (1172), 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) [2022-11-02 21:01:10,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-11-02 21:01:10,764 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-11-02 21:01:10,765 INFO L175 Difference]: Start difference. First operand has 149 places, 90 transitions, 394 flow. Second operand 16 states and 1172 transitions. [2022-11-02 21:01:10,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 131 transitions, 1136 flow [2022-11-02 21:01:10,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 131 transitions, 870 flow, removed 124 selfloop flow, removed 20 redundant places. [2022-11-02 21:01:10,777 INFO L231 Difference]: Finished difference. Result has 134 places, 91 transitions, 371 flow [2022-11-02 21:01:10,777 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=371, PETRI_PLACES=134, PETRI_TRANSITIONS=91} [2022-11-02 21:01:10,778 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 32 predicate places. [2022-11-02 21:01:10,778 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 91 transitions, 371 flow [2022-11-02 21:01:10,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 70.76923076923077) internal successors, (920), 13 states have internal predecessors, (920), 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) [2022-11-02 21:01:10,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:10,779 INFO L208 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] [2022-11-02 21:01:10,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:01:10,780 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:01:10,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:10,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1010339419, now seen corresponding path program 7 times [2022-11-02 21:01:10,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:10,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251988568] [2022-11-02 21:01:10,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:10,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:11,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:11,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251988568] [2022-11-02 21:01:11,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251988568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:11,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:11,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:01:11,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077591593] [2022-11-02 21:01:11,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:11,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:01:11,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:11,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:01:11,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:01:11,398 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2022-11-02 21:01:11,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 91 transitions, 371 flow. Second operand has 11 states, 11 states have (on average 71.81818181818181) internal successors, (790), 11 states have internal predecessors, (790), 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) [2022-11-02 21:01:11,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:11,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2022-11-02 21:01:11,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:12,212 INFO L130 PetriNetUnfolder]: 239/721 cut-off events. [2022-11-02 21:01:12,212 INFO L131 PetriNetUnfolder]: For 4082/4100 co-relation queries the response was YES. [2022-11-02 21:01:12,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2989 conditions, 721 events. 239/721 cut-off events. For 4082/4100 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4130 event pairs, 29 based on Foata normal form. 20/738 useless extension candidates. Maximal degree in co-relation 2905. Up to 160 conditions per place. [2022-11-02 21:01:12,221 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 33 selfloop transitions, 8 changer transitions 57/156 dead transitions. [2022-11-02 21:01:12,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 156 transitions, 1201 flow [2022-11-02 21:01:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:01:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-02 21:01:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1283 transitions. [2022-11-02 21:01:12,224 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.76232917409388 [2022-11-02 21:01:12,225 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1283 transitions. [2022-11-02 21:01:12,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1283 transitions. [2022-11-02 21:01:12,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:12,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1283 transitions. [2022-11-02 21:01:12,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 75.47058823529412) internal successors, (1283), 17 states have internal predecessors, (1283), 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) [2022-11-02 21:01:12,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 99.0) internal successors, (1782), 18 states have internal predecessors, (1782), 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) [2022-11-02 21:01:12,232 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 99.0) internal successors, (1782), 18 states have internal predecessors, (1782), 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) [2022-11-02 21:01:12,233 INFO L175 Difference]: Start difference. First operand has 134 places, 91 transitions, 371 flow. Second operand 17 states and 1283 transitions. [2022-11-02 21:01:12,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 156 transitions, 1201 flow [2022-11-02 21:01:12,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 156 transitions, 1026 flow, removed 63 selfloop flow, removed 16 redundant places. [2022-11-02 21:01:12,244 INFO L231 Difference]: Finished difference. Result has 141 places, 90 transitions, 366 flow [2022-11-02 21:01:12,244 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=366, PETRI_PLACES=141, PETRI_TRANSITIONS=90} [2022-11-02 21:01:12,245 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 39 predicate places. [2022-11-02 21:01:12,245 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 90 transitions, 366 flow [2022-11-02 21:01:12,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 71.81818181818181) internal successors, (790), 11 states have internal predecessors, (790), 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) [2022-11-02 21:01:12,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:12,246 INFO L208 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] [2022-11-02 21:01:12,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:01:12,246 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-02 21:01:12,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:12,247 INFO L85 PathProgramCache]: Analyzing trace with hash 404120369, now seen corresponding path program 8 times [2022-11-02 21:01:12,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:12,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68213474] [2022-11-02 21:01:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:12,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:13,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:13,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68213474] [2022-11-02 21:01:13,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68213474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:13,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:13,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 21:01:13,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652343724] [2022-11-02 21:01:13,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:13,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 21:01:13,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:13,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 21:01:13,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:01:13,765 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2022-11-02 21:01:13,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 90 transitions, 366 flow. Second operand has 15 states, 15 states have (on average 69.6) internal successors, (1044), 15 states have internal predecessors, (1044), 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) [2022-11-02 21:01:13,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:13,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2022-11-02 21:01:13,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:14,092 INFO L130 PetriNetUnfolder]: 37/178 cut-off events. [2022-11-02 21:01:14,092 INFO L131 PetriNetUnfolder]: For 1366/1402 co-relation queries the response was YES. [2022-11-02 21:01:14,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 178 events. 37/178 cut-off events. For 1366/1402 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 463 event pairs, 7 based on Foata normal form. 23/199 useless extension candidates. Maximal degree in co-relation 734. Up to 38 conditions per place. [2022-11-02 21:01:14,094 INFO L137 encePairwiseOnDemand]: 87/99 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2022-11-02 21:01:14,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 94 transitions, 511 flow [2022-11-02 21:01:14,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:01:14,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 21:01:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 917 transitions. [2022-11-02 21:01:14,098 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7125097125097125 [2022-11-02 21:01:14,099 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 917 transitions. [2022-11-02 21:01:14,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 917 transitions. [2022-11-02 21:01:14,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:14,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 917 transitions. [2022-11-02 21:01:14,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.53846153846153) internal successors, (917), 13 states have internal predecessors, (917), 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) [2022-11-02 21:01:14,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-11-02 21:01:14,104 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-11-02 21:01:14,104 INFO L175 Difference]: Start difference. First operand has 141 places, 90 transitions, 366 flow. Second operand 13 states and 917 transitions. [2022-11-02 21:01:14,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 94 transitions, 511 flow [2022-11-02 21:01:14,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 94 transitions, 436 flow, removed 35 selfloop flow, removed 16 redundant places. [2022-11-02 21:01:14,109 INFO L231 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2022-11-02 21:01:14,109 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2022-11-02 21:01:14,110 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 20 predicate places. [2022-11-02 21:01:14,110 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2022-11-02 21:01:14,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 69.6) internal successors, (1044), 15 states have internal predecessors, (1044), 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) [2022-11-02 21:01:14,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-11-02 21:01:14,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-02 21:01:14,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-11-02 21:01:14,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-11-02 21:01:14,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-11-02 21:01:14,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:01:14,115 INFO L444 BasicCegarLoop]: Path program histogram: [8, 5, 1, 1, 1] [2022-11-02 21:01:14,120 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:01:14,121 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:01:14,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:01:14 BasicIcfg [2022-11-02 21:01:14,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:01:14,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:01:14,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:01:14,127 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:01:14,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:38" (3/4) ... [2022-11-02 21:01:14,131 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:01:14,137 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-02 21:01:14,137 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-02 21:01:14,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2022-11-02 21:01:14,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-02 21:01:14,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-02 21:01:14,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 21:01:14,205 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:01:14,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:01:14,206 INFO L158 Benchmark]: Toolchain (without parser) took 38688.73ms. Allocated memory was 169.9MB in the beginning and 836.8MB in the end (delta: 666.9MB). Free memory was 133.7MB in the beginning and 500.6MB in the end (delta: -366.9MB). Peak memory consumption was 298.9MB. Max. memory is 16.1GB. [2022-11-02 21:01:14,206 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:01:14,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 780.45ms. Allocated memory is still 169.9MB. Free memory was 133.7MB in the beginning and 127.3MB in the end (delta: 6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 21:01:14,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.00ms. Allocated memory is still 169.9MB. Free memory was 127.3MB in the beginning and 123.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:01:14,207 INFO L158 Benchmark]: Boogie Preprocessor took 46.00ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 121.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:01:14,208 INFO L158 Benchmark]: RCFGBuilder took 2422.34ms. Allocated memory was 169.9MB in the beginning and 232.8MB in the end (delta: 62.9MB). Free memory was 121.0MB in the beginning and 188.0MB in the end (delta: -67.0MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2022-11-02 21:01:14,208 INFO L158 Benchmark]: TraceAbstraction took 35289.13ms. Allocated memory was 232.8MB in the beginning and 836.8MB in the end (delta: 604.0MB). Free memory was 186.9MB in the beginning and 504.8MB in the end (delta: -317.9MB). Peak memory consumption was 285.1MB. Max. memory is 16.1GB. [2022-11-02 21:01:14,209 INFO L158 Benchmark]: Witness Printer took 78.41ms. Allocated memory is still 836.8MB. Free memory was 504.8MB in the beginning and 500.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:01:14,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 780.45ms. Allocated memory is still 169.9MB. Free memory was 133.7MB in the beginning and 127.3MB in the end (delta: 6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.00ms. Allocated memory is still 169.9MB. Free memory was 127.3MB in the beginning and 123.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.00ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 121.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2422.34ms. Allocated memory was 169.9MB in the beginning and 232.8MB in the end (delta: 62.9MB). Free memory was 121.0MB in the beginning and 188.0MB in the end (delta: -67.0MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. * TraceAbstraction took 35289.13ms. Allocated memory was 232.8MB in the beginning and 836.8MB in the end (delta: 604.0MB). Free memory was 186.9MB in the beginning and 504.8MB in the end (delta: -317.9MB). Peak memory consumption was 285.1MB. Max. memory is 16.1GB. * Witness Printer took 78.41ms. Allocated memory is still 836.8MB. Free memory was 504.8MB in the beginning and 500.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 120 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 35.0s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 820 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 820 mSDsluCounter, 1002 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1324 mSDsCounter, 601 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3028 IncrementalHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 601 mSolverCounterUnsat, 155 mSDtfsCounter, 3028 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 267 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=772occurred in iteration=9, InterpolantAutomatonStates: 216, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 20.5s InterpolantComputationTime, 1141 NumberOfCodeBlocks, 1141 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1125 ConstructedInterpolants, 0 QuantifiedInterpolants, 8993 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 21:01:14,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b891706-b048-419f-884c-7dac45a59971/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE