./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.02.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.02.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa --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 5d56dff15b0de2a89db18b71695d59ff3710bc2ebb344dc571e9d71343d9d530 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:53:31,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:53:31,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:53:31,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:53:31,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:53:31,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:53:31,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:53:31,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:53:31,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:53:31,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:53:31,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:53:31,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:53:31,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:53:31,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:53:31,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:53:31,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:53:31,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:53:31,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:53:31,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:53:31,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:53:31,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:53:31,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:53:31,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:53:31,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:53:31,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:53:31,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:53:31,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:53:31,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:53:31,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:53:31,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:53:31,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:53:31,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:53:31,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:53:31,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:53:31,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:53:31,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:53:31,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:53:31,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:53:31,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:53:31,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:53:31,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:53:31,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:53:31,599 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:53:31,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:53:31,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:53:31,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:53:31,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:53:31,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:53:31,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:53:31,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:53:31,601 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:53:31,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:53:31,601 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:53:31,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:53:31,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:53:31,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:53:31,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:53:31,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:53:31,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:53:31,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:53:31,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:53:31,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:53:31,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:53:31,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:53:31,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:53:31,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:53:31,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:53:31,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:53:31,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:53:31,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:53:31,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:53:31,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:53:31,604 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:53:31,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:53:31,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:53:31,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:53:31,604 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_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d56dff15b0de2a89db18b71695d59ff3710bc2ebb344dc571e9d71343d9d530 [2021-12-06 17:53:31,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:53:31,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:53:31,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:53:31,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:53:31,810 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:53:31,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.02.cil-2.c [2021-12-06 17:53:31,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/data/c4157c0e6/8de492f19b304639a8eff3c2cbebf52e/FLAG2014270b3 [2021-12-06 17:53:32,541 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:53:32,542 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/sv-benchmarks/c/combinations/Problem05_label45+token_ring.02.cil-2.c [2021-12-06 17:53:32,575 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/data/c4157c0e6/8de492f19b304639a8eff3c2cbebf52e/FLAG2014270b3 [2021-12-06 17:53:32,906 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/data/c4157c0e6/8de492f19b304639a8eff3c2cbebf52e [2021-12-06 17:53:32,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:53:32,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:53:32,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:53:32,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:53:32,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:53:32,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:53:32" (1/1) ... [2021-12-06 17:53:32,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51246add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:32, skipping insertion in model container [2021-12-06 17:53:32,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:53:32" (1/1) ... [2021-12-06 17:53:32,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:53:33,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:53:34,498 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_123ca35b-ca12-4781-936a-7491cf489932/sv-benchmarks/c/combinations/Problem05_label45+token_ring.02.cil-2.c[380323,380336] [2021-12-06 17:53:34,523 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_123ca35b-ca12-4781-936a-7491cf489932/sv-benchmarks/c/combinations/Problem05_label45+token_ring.02.cil-2.c[383339,383352] [2021-12-06 17:53:34,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:53:34,667 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:53:35,512 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_123ca35b-ca12-4781-936a-7491cf489932/sv-benchmarks/c/combinations/Problem05_label45+token_ring.02.cil-2.c[380323,380336] [2021-12-06 17:53:35,516 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_123ca35b-ca12-4781-936a-7491cf489932/sv-benchmarks/c/combinations/Problem05_label45+token_ring.02.cil-2.c[383339,383352] [2021-12-06 17:53:35,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:53:35,572 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:53:35,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35 WrapperNode [2021-12-06 17:53:35,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:53:35,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:53:35,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:53:35,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:53:35,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:35,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:35,911 INFO L137 Inliner]: procedures = 48, calls = 48, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 12624 [2021-12-06 17:53:35,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:53:35,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:53:35,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:53:35,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:53:35,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:35,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:35,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:35,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:36,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:36,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:36,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:36,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:53:36,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:53:36,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:53:36,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:53:36,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (1/1) ... [2021-12-06 17:53:36,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:53:36,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:36,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:53:36,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:53:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:53:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-12-06 17:53:36,349 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-12-06 17:53:36,350 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-12-06 17:53:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-12-06 17:53:36,350 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-12-06 17:53:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-12-06 17:53:36,350 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-12-06 17:53:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-12-06 17:53:36,350 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-12-06 17:53:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-12-06 17:53:36,350 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-12-06 17:53:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-12-06 17:53:36,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:53:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-12-06 17:53:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-12-06 17:53:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:53:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:53:36,423 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:53:36,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:53:40,694 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:53:40,719 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:53:40,720 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-06 17:53:40,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:53:40 BoogieIcfgContainer [2021-12-06 17:53:40,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:53:40,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:53:40,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:53:40,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:53:40,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:53:32" (1/3) ... [2021-12-06 17:53:40,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e0330c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:53:40, skipping insertion in model container [2021-12-06 17:53:40,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:53:35" (2/3) ... [2021-12-06 17:53:40,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e0330c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:53:40, skipping insertion in model container [2021-12-06 17:53:40,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:53:40" (3/3) ... [2021-12-06 17:53:40,731 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.02.cil-2.c [2021-12-06 17:53:40,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:53:40,736 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 17:53:40,785 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:53:40,790 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:53:40,790 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 17:53:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 2323 states, 2295 states have (on average 1.857516339869281) internal successors, (4263), 2300 states have internal predecessors, (4263), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-06 17:53:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 17:53:40,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:40,846 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:53:40,846 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:40,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:40,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2062992276, now seen corresponding path program 1 times [2021-12-06 17:53:40,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:40,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764814244] [2021-12-06 17:53:40,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:40,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:41,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:41,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:53:41,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:41,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764814244] [2021-12-06 17:53:41,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764814244] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:41,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:53:41,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:53:41,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634262289] [2021-12-06 17:53:41,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:41,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:53:41,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:41,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:53:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:53:41,142 INFO L87 Difference]: Start difference. First operand has 2323 states, 2295 states have (on average 1.857516339869281) internal successors, (4263), 2300 states have internal predecessors, (4263), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:41,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:41,870 INFO L93 Difference]: Finished difference Result 4824 states and 8887 transitions. [2021-12-06 17:53:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:53:41,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-06 17:53:41,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:41,896 INFO L225 Difference]: With dead ends: 4824 [2021-12-06 17:53:41,896 INFO L226 Difference]: Without dead ends: 2441 [2021-12-06 17:53:41,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:53:41,905 INFO L933 BasicCegarLoop]: 4249 mSDtfsCounter, 4444 mSDsluCounter, 12475 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4453 SdHoareTripleChecker+Valid, 16724 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:41,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4453 Valid, 16724 Invalid, 612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 17:53:41,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2021-12-06 17:53:42,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2376. [2021-12-06 17:53:42,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2332 states have (on average 1.8340480274442539) internal successors, (4277), 2336 states have internal predecessors, (4277), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2021-12-06 17:53:42,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 4336 transitions. [2021-12-06 17:53:42,018 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 4336 transitions. Word has length 69 [2021-12-06 17:53:42,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:42,019 INFO L470 AbstractCegarLoop]: Abstraction has 2376 states and 4336 transitions. [2021-12-06 17:53:42,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 4336 transitions. [2021-12-06 17:53:42,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 17:53:42,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:42,022 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:53:42,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:53:42,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:42,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1960277912, now seen corresponding path program 1 times [2021-12-06 17:53:42,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:42,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050594820] [2021-12-06 17:53:42,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:42,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:53:42,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:42,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050594820] [2021-12-06 17:53:42,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050594820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:42,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:53:42,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:53:42,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603820468] [2021-12-06 17:53:42,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:42,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:53:42,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:42,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:53:42,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:53:42,147 INFO L87 Difference]: Start difference. First operand 2376 states and 4336 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:42,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:42,540 INFO L93 Difference]: Finished difference Result 2686 states and 4809 transitions. [2021-12-06 17:53:42,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:53:42,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-06 17:53:42,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:42,557 INFO L225 Difference]: With dead ends: 2686 [2021-12-06 17:53:42,557 INFO L226 Difference]: Without dead ends: 2441 [2021-12-06 17:53:42,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:53:42,561 INFO L933 BasicCegarLoop]: 4142 mSDtfsCounter, 4269 mSDsluCounter, 16164 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4279 SdHoareTripleChecker+Valid, 20306 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:42,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4279 Valid, 20306 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:53:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2021-12-06 17:53:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2376. [2021-12-06 17:53:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2332 states have (on average 1.8331903945111492) internal successors, (4275), 2336 states have internal predecessors, (4275), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2021-12-06 17:53:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 4334 transitions. [2021-12-06 17:53:42,620 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 4334 transitions. Word has length 69 [2021-12-06 17:53:42,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:42,621 INFO L470 AbstractCegarLoop]: Abstraction has 2376 states and 4334 transitions. [2021-12-06 17:53:42,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:42,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 4334 transitions. [2021-12-06 17:53:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 17:53:42,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:42,623 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:53:42,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:53:42,624 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:42,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:42,624 INFO L85 PathProgramCache]: Analyzing trace with hash -573492502, now seen corresponding path program 1 times [2021-12-06 17:53:42,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:42,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777804232] [2021-12-06 17:53:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:42,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:53:42,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:42,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777804232] [2021-12-06 17:53:42,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777804232] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:42,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:53:42,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:53:42,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30646421] [2021-12-06 17:53:42,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:42,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:53:42,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:42,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:53:42,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:53:42,714 INFO L87 Difference]: Start difference. First operand 2376 states and 4334 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:43,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:43,323 INFO L93 Difference]: Finished difference Result 2834 states and 5016 transitions. [2021-12-06 17:53:43,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 17:53:43,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-06 17:53:43,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:43,340 INFO L225 Difference]: With dead ends: 2834 [2021-12-06 17:53:43,340 INFO L226 Difference]: Without dead ends: 2589 [2021-12-06 17:53:43,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:53:43,343 INFO L933 BasicCegarLoop]: 4190 mSDtfsCounter, 4387 mSDsluCounter, 16343 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 20533 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:43,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4396 Valid, 20533 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 17:53:43,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2021-12-06 17:53:43,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2490. [2021-12-06 17:53:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2428 states have (on average 1.8187808896210873) internal successors, (4416), 2433 states have internal predecessors, (4416), 40 states have call successors, (40), 19 states have call predecessors, (40), 20 states have return successors, (43), 39 states have call predecessors, (43), 38 states have call successors, (43) [2021-12-06 17:53:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4499 transitions. [2021-12-06 17:53:43,420 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4499 transitions. Word has length 69 [2021-12-06 17:53:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:43,420 INFO L470 AbstractCegarLoop]: Abstraction has 2490 states and 4499 transitions. [2021-12-06 17:53:43,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:43,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4499 transitions. [2021-12-06 17:53:43,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 17:53:43,422 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:43,423 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:53:43,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:53:43,423 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:43,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash 302526504, now seen corresponding path program 1 times [2021-12-06 17:53:43,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:43,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012523464] [2021-12-06 17:53:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:43,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:43,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:43,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:43,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:43,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:53:43,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:43,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012523464] [2021-12-06 17:53:43,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012523464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:43,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:53:43,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:53:43,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296863462] [2021-12-06 17:53:43,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:43,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:53:43,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:53:43,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:53:43,511 INFO L87 Difference]: Start difference. First operand 2490 states and 4499 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:44,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:44,119 INFO L93 Difference]: Finished difference Result 3280 states and 5671 transitions. [2021-12-06 17:53:44,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:53:44,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-06 17:53:44,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:44,133 INFO L225 Difference]: With dead ends: 3280 [2021-12-06 17:53:44,133 INFO L226 Difference]: Without dead ends: 2921 [2021-12-06 17:53:44,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:53:44,136 INFO L933 BasicCegarLoop]: 4277 mSDtfsCounter, 4371 mSDsluCounter, 16532 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4379 SdHoareTripleChecker+Valid, 20809 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:44,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4379 Valid, 20809 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 17:53:44,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-12-06 17:53:44,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2697. [2021-12-06 17:53:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 2601 states have (on average 1.794309880815071) internal successors, (4667), 2608 states have internal predecessors, (4667), 60 states have call successors, (60), 31 states have call predecessors, (60), 34 states have return successors, (71), 61 states have call predecessors, (71), 58 states have call successors, (71) [2021-12-06 17:53:44,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 4798 transitions. [2021-12-06 17:53:44,207 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 4798 transitions. Word has length 69 [2021-12-06 17:53:44,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:44,208 INFO L470 AbstractCegarLoop]: Abstraction has 2697 states and 4798 transitions. [2021-12-06 17:53:44,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 4798 transitions. [2021-12-06 17:53:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 17:53:44,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:44,209 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:53:44,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:53:44,210 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1840866534, now seen corresponding path program 1 times [2021-12-06 17:53:44,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:44,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302003918] [2021-12-06 17:53:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:44,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:53:44,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:44,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302003918] [2021-12-06 17:53:44,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302003918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:44,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:53:44,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:53:44,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800215574] [2021-12-06 17:53:44,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:44,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:53:44,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:44,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:53:44,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:53:44,277 INFO L87 Difference]: Start difference. First operand 2697 states and 4798 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:44,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:44,800 INFO L93 Difference]: Finished difference Result 3979 states and 6676 transitions. [2021-12-06 17:53:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:53:44,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-06 17:53:44,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:44,819 INFO L225 Difference]: With dead ends: 3979 [2021-12-06 17:53:44,819 INFO L226 Difference]: Without dead ends: 3413 [2021-12-06 17:53:44,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:53:44,823 INFO L933 BasicCegarLoop]: 4246 mSDtfsCounter, 4373 mSDsluCounter, 16535 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4385 SdHoareTripleChecker+Valid, 20781 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:44,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4385 Valid, 20781 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 17:53:44,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2021-12-06 17:53:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 3126. [2021-12-06 17:53:44,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 2964 states have (on average 1.75472334682861) internal successors, (5201), 2975 states have internal predecessors, (5201), 98 states have call successors, (98), 55 states have call predecessors, (98), 62 states have return successors, (131), 103 states have call predecessors, (131), 96 states have call successors, (131) [2021-12-06 17:53:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 5430 transitions. [2021-12-06 17:53:44,920 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 5430 transitions. Word has length 69 [2021-12-06 17:53:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:44,920 INFO L470 AbstractCegarLoop]: Abstraction has 3126 states and 5430 transitions. [2021-12-06 17:53:44,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 5430 transitions. [2021-12-06 17:53:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 17:53:44,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:44,922 INFO L514 BasicCegarLoop]: 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] [2021-12-06 17:53:44,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:53:44,922 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:44,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:44,922 INFO L85 PathProgramCache]: Analyzing trace with hash -187719576, now seen corresponding path program 1 times [2021-12-06 17:53:44,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:44,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999882280] [2021-12-06 17:53:44,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:44,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:44,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:53:44,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:44,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999882280] [2021-12-06 17:53:44,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999882280] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:44,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:53:44,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:53:44,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387809794] [2021-12-06 17:53:44,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:44,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:53:44,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:44,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:53:44,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:53:44,987 INFO L87 Difference]: Start difference. First operand 3126 states and 5430 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:45,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:45,527 INFO L93 Difference]: Finished difference Result 4980 states and 8171 transitions. [2021-12-06 17:53:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:53:45,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-06 17:53:45,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:45,549 INFO L225 Difference]: With dead ends: 4980 [2021-12-06 17:53:45,550 INFO L226 Difference]: Without dead ends: 3986 [2021-12-06 17:53:45,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:53:45,556 INFO L933 BasicCegarLoop]: 4304 mSDtfsCounter, 4501 mSDsluCounter, 12283 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4527 SdHoareTripleChecker+Valid, 16587 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:45,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4527 Valid, 16587 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 17:53:45,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2021-12-06 17:53:45,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3655. [2021-12-06 17:53:45,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 3405 states have (on average 1.7101321585903084) internal successors, (5823), 3425 states have internal predecessors, (5823), 152 states have call successors, (152), 85 states have call predecessors, (152), 96 states have return successors, (195), 152 states have call predecessors, (195), 150 states have call successors, (195) [2021-12-06 17:53:45,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 6170 transitions. [2021-12-06 17:53:45,669 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 6170 transitions. Word has length 69 [2021-12-06 17:53:45,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:45,669 INFO L470 AbstractCegarLoop]: Abstraction has 3655 states and 6170 transitions. [2021-12-06 17:53:45,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 17:53:45,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 6170 transitions. [2021-12-06 17:53:45,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 17:53:45,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:45,674 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:45,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:53:45,674 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:45,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:45,675 INFO L85 PathProgramCache]: Analyzing trace with hash 770021099, now seen corresponding path program 1 times [2021-12-06 17:53:45,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:45,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998909776] [2021-12-06 17:53:45,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:45,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:53:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:53:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:53:45,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:45,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998909776] [2021-12-06 17:53:45,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998909776] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:45,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55560776] [2021-12-06 17:53:45,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:45,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:45,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:45,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:45,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:53:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:45,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:53:45,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 17:53:45,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:45,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55560776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:45,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:45,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2021-12-06 17:53:45,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480150054] [2021-12-06 17:53:45,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:45,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:45,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:45,973 INFO L87 Difference]: Start difference. First operand 3655 states and 6170 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:53:46,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:46,100 INFO L93 Difference]: Finished difference Result 6624 states and 10494 transitions. [2021-12-06 17:53:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:46,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 111 [2021-12-06 17:53:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:46,134 INFO L225 Difference]: With dead ends: 6624 [2021-12-06 17:53:46,134 INFO L226 Difference]: Without dead ends: 5101 [2021-12-06 17:53:46,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:46,142 INFO L933 BasicCegarLoop]: 4161 mSDtfsCounter, 4109 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4109 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:46,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4109 Valid, 4331 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:53:46,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5101 states. [2021-12-06 17:53:46,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5101 to 5069. [2021-12-06 17:53:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 4595 states have (on average 1.6426550598476606) internal successors, (7548), 4632 states have internal predecessors, (7548), 282 states have call successors, (282), 167 states have call predecessors, (282), 190 states have return successors, (363), 277 states have call predecessors, (363), 280 states have call successors, (363) [2021-12-06 17:53:46,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 8193 transitions. [2021-12-06 17:53:46,324 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 8193 transitions. Word has length 111 [2021-12-06 17:53:46,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:46,324 INFO L470 AbstractCegarLoop]: Abstraction has 5069 states and 8193 transitions. [2021-12-06 17:53:46,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:53:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 8193 transitions. [2021-12-06 17:53:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 17:53:46,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:46,330 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:46,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:53:46,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 17:53:46,531 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:46,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash -122535733, now seen corresponding path program 1 times [2021-12-06 17:53:46,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:46,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409628264] [2021-12-06 17:53:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:46,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:53:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:53:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:53:46,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:46,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409628264] [2021-12-06 17:53:46,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409628264] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:46,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193647767] [2021-12-06 17:53:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:46,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:46,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:46,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:46,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 17:53:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:46,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:53:46,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 17:53:46,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:46,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193647767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:46,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:46,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:53:46,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333474037] [2021-12-06 17:53:46,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:46,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:46,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:46,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:46,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:46,888 INFO L87 Difference]: Start difference. First operand 5069 states and 8193 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:53:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:47,054 INFO L93 Difference]: Finished difference Result 10733 states and 16467 transitions. [2021-12-06 17:53:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:47,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2021-12-06 17:53:47,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:47,090 INFO L225 Difference]: With dead ends: 10733 [2021-12-06 17:53:47,090 INFO L226 Difference]: Without dead ends: 7797 [2021-12-06 17:53:47,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:47,100 INFO L933 BasicCegarLoop]: 4309 mSDtfsCounter, 153 mSDsluCounter, 4149 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 8458 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:47,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 8458 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:53:47,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7797 states. [2021-12-06 17:53:47,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7797 to 7797. [2021-12-06 17:53:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7797 states, 6882 states have (on average 1.568584713746004) internal successors, (10795), 6944 states have internal predecessors, (10795), 537 states have call successors, (537), 329 states have call predecessors, (537), 376 states have return successors, (786), 539 states have call predecessors, (786), 535 states have call successors, (786) [2021-12-06 17:53:47,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7797 states to 7797 states and 12118 transitions. [2021-12-06 17:53:47,340 INFO L78 Accepts]: Start accepts. Automaton has 7797 states and 12118 transitions. Word has length 111 [2021-12-06 17:53:47,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:47,341 INFO L470 AbstractCegarLoop]: Abstraction has 7797 states and 12118 transitions. [2021-12-06 17:53:47,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:53:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 7797 states and 12118 transitions. [2021-12-06 17:53:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-06 17:53:47,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:47,355 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:47,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 17:53:47,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:47,556 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:47,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:47,557 INFO L85 PathProgramCache]: Analyzing trace with hash 327119452, now seen corresponding path program 1 times [2021-12-06 17:53:47,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:47,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568191546] [2021-12-06 17:53:47,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:47,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:53:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 17:53:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 17:53:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,778 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-06 17:53:47,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:47,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568191546] [2021-12-06 17:53:47,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568191546] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:47,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932079961] [2021-12-06 17:53:47,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:47,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:47,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:47,780 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:47,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 17:53:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:47,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:53:47,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 17:53:48,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:48,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932079961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:48,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:48,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2021-12-06 17:53:48,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698021615] [2021-12-06 17:53:48,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:48,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:48,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:48,001 INFO L87 Difference]: Start difference. First operand 7797 states and 12118 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:53:48,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:48,253 INFO L93 Difference]: Finished difference Result 18877 states and 28229 transitions. [2021-12-06 17:53:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:48,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 143 [2021-12-06 17:53:48,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:48,287 INFO L225 Difference]: With dead ends: 18877 [2021-12-06 17:53:48,287 INFO L226 Difference]: Without dead ends: 13217 [2021-12-06 17:53:48,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:48,305 INFO L933 BasicCegarLoop]: 4182 mSDtfsCounter, 4067 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4067 SdHoareTripleChecker+Valid, 4352 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:48,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4067 Valid, 4352 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:53:48,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13217 states. [2021-12-06 17:53:48,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13217 to 13101. [2021-12-06 17:53:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13101 states, 11334 states have (on average 1.5130580554085054) internal successors, (17149), 11454 states have internal predecessors, (17149), 1023 states have call successors, (1023), 647 states have call predecessors, (1023), 742 states have return successors, (1484), 1015 states have call predecessors, (1484), 1021 states have call successors, (1484) [2021-12-06 17:53:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13101 states to 13101 states and 19656 transitions. [2021-12-06 17:53:48,681 INFO L78 Accepts]: Start accepts. Automaton has 13101 states and 19656 transitions. Word has length 143 [2021-12-06 17:53:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:48,682 INFO L470 AbstractCegarLoop]: Abstraction has 13101 states and 19656 transitions. [2021-12-06 17:53:48,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 17:53:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand 13101 states and 19656 transitions. [2021-12-06 17:53:48,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-06 17:53:48,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:48,701 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:48,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 17:53:48,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:48,902 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash 382011958, now seen corresponding path program 1 times [2021-12-06 17:53:48,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:48,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107114226] [2021-12-06 17:53:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:48,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:53:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:53:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 17:53:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 17:53:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 17:53:48,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:48,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107114226] [2021-12-06 17:53:48,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107114226] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:48,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489362226] [2021-12-06 17:53:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:48,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:48,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:48,999 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:48,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 17:53:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:49,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:53:49,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-06 17:53:49,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:49,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489362226] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:49,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:49,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:53:49,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582984200] [2021-12-06 17:53:49,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:49,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:49,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:49,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:49,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:49,236 INFO L87 Difference]: Start difference. First operand 13101 states and 19656 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 17:53:49,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:49,570 INFO L93 Difference]: Finished difference Result 25341 states and 37502 transitions. [2021-12-06 17:53:49,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:49,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 160 [2021-12-06 17:53:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:49,605 INFO L225 Difference]: With dead ends: 25341 [2021-12-06 17:53:49,606 INFO L226 Difference]: Without dead ends: 14375 [2021-12-06 17:53:49,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:49,632 INFO L933 BasicCegarLoop]: 4148 mSDtfsCounter, 4086 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:49,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4086 Valid, 4182 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:53:49,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14375 states. [2021-12-06 17:53:50,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14375 to 14375. [2021-12-06 17:53:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14375 states, 12492 states have (on average 1.4571725904578932) internal successors, (18203), 12612 states have internal predecessors, (18203), 1053 states have call successors, (1053), 733 states have call predecessors, (1053), 828 states have return successors, (1522), 1045 states have call predecessors, (1522), 1051 states have call successors, (1522) [2021-12-06 17:53:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14375 states to 14375 states and 20778 transitions. [2021-12-06 17:53:50,106 INFO L78 Accepts]: Start accepts. Automaton has 14375 states and 20778 transitions. Word has length 160 [2021-12-06 17:53:50,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:50,106 INFO L470 AbstractCegarLoop]: Abstraction has 14375 states and 20778 transitions. [2021-12-06 17:53:50,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 17:53:50,106 INFO L276 IsEmpty]: Start isEmpty. Operand 14375 states and 20778 transitions. [2021-12-06 17:53:50,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-06 17:53:50,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:50,127 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:50,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 17:53:50,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 17:53:50,328 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:50,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash 228383827, now seen corresponding path program 1 times [2021-12-06 17:53:50,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:50,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898756553] [2021-12-06 17:53:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:50,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:53:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:53:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 17:53:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-06 17:53:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-06 17:53:50,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:50,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898756553] [2021-12-06 17:53:50,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898756553] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:50,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072777728] [2021-12-06 17:53:50,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:50,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:50,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:50,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:50,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 17:53:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:50,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:53:50,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-06 17:53:50,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:50,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072777728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:50,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:50,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:53:50,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229882231] [2021-12-06 17:53:50,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:50,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:50,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:50,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:50,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:50,620 INFO L87 Difference]: Start difference. First operand 14375 states and 20778 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 17:53:51,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:51,037 INFO L93 Difference]: Finished difference Result 23728 states and 33596 transitions. [2021-12-06 17:53:51,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:51,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 160 [2021-12-06 17:53:51,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:51,085 INFO L225 Difference]: With dead ends: 23728 [2021-12-06 17:53:51,085 INFO L226 Difference]: Without dead ends: 15235 [2021-12-06 17:53:51,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:51,110 INFO L933 BasicCegarLoop]: 4170 mSDtfsCounter, 4087 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4087 SdHoareTripleChecker+Valid, 4347 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:51,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4087 Valid, 4347 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:53:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15235 states. [2021-12-06 17:53:51,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15235 to 15159. [2021-12-06 17:53:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15159 states, 13212 states have (on average 1.4319557977596125) internal successors, (18919), 13332 states have internal predecessors, (18919), 1065 states have call successors, (1065), 785 states have call predecessors, (1065), 880 states have return successors, (1586), 1057 states have call predecessors, (1586), 1063 states have call successors, (1586) [2021-12-06 17:53:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15159 states to 15159 states and 21570 transitions. [2021-12-06 17:53:51,602 INFO L78 Accepts]: Start accepts. Automaton has 15159 states and 21570 transitions. Word has length 160 [2021-12-06 17:53:51,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:51,603 INFO L470 AbstractCegarLoop]: Abstraction has 15159 states and 21570 transitions. [2021-12-06 17:53:51,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 17:53:51,603 INFO L276 IsEmpty]: Start isEmpty. Operand 15159 states and 21570 transitions. [2021-12-06 17:53:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 17:53:51,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:51,621 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:51,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-06 17:53:51,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 17:53:51,822 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:51,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:51,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1570525413, now seen corresponding path program 1 times [2021-12-06 17:53:51,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:51,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539539801] [2021-12-06 17:53:51,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:51,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:53:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 17:53:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 17:53:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:53:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-06 17:53:51,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:51,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539539801] [2021-12-06 17:53:51,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539539801] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:51,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202992275] [2021-12-06 17:53:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:51,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:51,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:51,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:51,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 17:53:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:51,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:53:51,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-06 17:53:52,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:52,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202992275] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:52,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:52,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:53:52,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162834928] [2021-12-06 17:53:52,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:52,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:52,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:52,096 INFO L87 Difference]: Start difference. First operand 15159 states and 21570 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 17:53:52,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:52,742 INFO L93 Difference]: Finished difference Result 40537 states and 56372 transitions. [2021-12-06 17:53:52,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:52,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 161 [2021-12-06 17:53:52,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:52,809 INFO L225 Difference]: With dead ends: 40537 [2021-12-06 17:53:52,809 INFO L226 Difference]: Without dead ends: 27517 [2021-12-06 17:53:52,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:52,833 INFO L933 BasicCegarLoop]: 4318 mSDtfsCounter, 162 mSDsluCounter, 4146 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 8464 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:52,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 8464 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:53:52,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27517 states. [2021-12-06 17:53:53,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27517 to 27489. [2021-12-06 17:53:53,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27489 states, 23696 states have (on average 1.3850860904794058) internal successors, (32821), 23934 states have internal predecessors, (32821), 2063 states have call successors, (2063), 1537 states have call predecessors, (2063), 1728 states have return successors, (3558), 2049 states have call predecessors, (3558), 2061 states have call successors, (3558) [2021-12-06 17:53:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27489 states to 27489 states and 38442 transitions. [2021-12-06 17:53:53,682 INFO L78 Accepts]: Start accepts. Automaton has 27489 states and 38442 transitions. Word has length 161 [2021-12-06 17:53:53,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:53,683 INFO L470 AbstractCegarLoop]: Abstraction has 27489 states and 38442 transitions. [2021-12-06 17:53:53,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 17:53:53,683 INFO L276 IsEmpty]: Start isEmpty. Operand 27489 states and 38442 transitions. [2021-12-06 17:53:53,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 17:53:53,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:53,713 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:53,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 17:53:53,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:53,914 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:53,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:53,916 INFO L85 PathProgramCache]: Analyzing trace with hash -948353227, now seen corresponding path program 1 times [2021-12-06 17:53:53,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:53,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958951702] [2021-12-06 17:53:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:53,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:53,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:53,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:53:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 17:53:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:53:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:53:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-06 17:53:54,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:54,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958951702] [2021-12-06 17:53:54,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958951702] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:54,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226299552] [2021-12-06 17:53:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:54,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:54,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:54,026 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:54,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 17:53:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:54,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:53:54,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:54,228 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-06 17:53:54,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:54,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226299552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:54,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:54,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:53:54,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099122633] [2021-12-06 17:53:54,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:54,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:54,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:54,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:54,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:54,230 INFO L87 Difference]: Start difference. First operand 27489 states and 38442 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 17:53:54,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:54,890 INFO L93 Difference]: Finished difference Result 45781 states and 64487 transitions. [2021-12-06 17:53:54,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:54,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 161 [2021-12-06 17:53:54,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:54,948 INFO L225 Difference]: With dead ends: 45781 [2021-12-06 17:53:54,948 INFO L226 Difference]: Without dead ends: 24869 [2021-12-06 17:53:54,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:54,982 INFO L933 BasicCegarLoop]: 4147 mSDtfsCounter, 4081 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4081 SdHoareTripleChecker+Valid, 4180 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:54,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4081 Valid, 4180 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:53:55,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24869 states. [2021-12-06 17:53:55,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24869 to 19189. [2021-12-06 17:53:55,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19189 states, 16676 states have (on average 1.3680139122091628) internal successors, (22813), 16806 states have internal predecessors, (22813), 1375 states have call successors, (1375), 1041 states have call predecessors, (1375), 1136 states have return successors, (2154), 1357 states have call predecessors, (2154), 1373 states have call successors, (2154) [2021-12-06 17:53:55,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19189 states to 19189 states and 26342 transitions. [2021-12-06 17:53:55,665 INFO L78 Accepts]: Start accepts. Automaton has 19189 states and 26342 transitions. Word has length 161 [2021-12-06 17:53:55,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:55,665 INFO L470 AbstractCegarLoop]: Abstraction has 19189 states and 26342 transitions. [2021-12-06 17:53:55,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 17:53:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand 19189 states and 26342 transitions. [2021-12-06 17:53:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 17:53:55,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:55,677 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:55,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 17:53:55,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 17:53:55,879 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:55,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:55,880 INFO L85 PathProgramCache]: Analyzing trace with hash -192882952, now seen corresponding path program 1 times [2021-12-06 17:53:55,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:55,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689986884] [2021-12-06 17:53:55,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:55,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-06 17:53:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 17:53:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:53:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:53:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 17:53:55,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:55,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689986884] [2021-12-06 17:53:55,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689986884] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:55,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430159431] [2021-12-06 17:53:55,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:55,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:55,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:55,969 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:55,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 17:53:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:56,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:53:56,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 17:53:56,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:56,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430159431] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:56,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:56,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:53:56,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107709298] [2021-12-06 17:53:56,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:56,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:56,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:56,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:56,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:56,162 INFO L87 Difference]: Start difference. First operand 19189 states and 26342 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 17:53:57,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:57,165 INFO L93 Difference]: Finished difference Result 50633 states and 68394 transitions. [2021-12-06 17:53:57,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:57,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 161 [2021-12-06 17:53:57,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:57,235 INFO L225 Difference]: With dead ends: 50633 [2021-12-06 17:53:57,235 INFO L226 Difference]: Without dead ends: 33593 [2021-12-06 17:53:57,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:57,265 INFO L933 BasicCegarLoop]: 4312 mSDtfsCounter, 149 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:53:57,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 8455 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:53:57,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33593 states. [2021-12-06 17:53:58,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33593 to 33589. [2021-12-06 17:53:58,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33589 states, 28856 states have (on average 1.327314943166066) internal successors, (38301), 29114 states have internal predecessors, (38301), 2603 states have call successors, (2603), 1937 states have call predecessors, (2603), 2128 states have return successors, (4736), 2569 states have call predecessors, (4736), 2601 states have call successors, (4736) [2021-12-06 17:53:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33589 states to 33589 states and 45640 transitions. [2021-12-06 17:53:58,425 INFO L78 Accepts]: Start accepts. Automaton has 33589 states and 45640 transitions. Word has length 161 [2021-12-06 17:53:58,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:53:58,425 INFO L470 AbstractCegarLoop]: Abstraction has 33589 states and 45640 transitions. [2021-12-06 17:53:58,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 17:53:58,425 INFO L276 IsEmpty]: Start isEmpty. Operand 33589 states and 45640 transitions. [2021-12-06 17:53:58,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 17:53:58,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:53:58,446 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:53:58,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 17:53:58,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:58,647 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:53:58,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:53:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1491732838, now seen corresponding path program 1 times [2021-12-06 17:53:58,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:53:58,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094269568] [2021-12-06 17:53:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:58,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:53:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:53:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:53:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:53:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:53:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:53:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:53:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 17:53:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 17:53:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:53:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:53:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-06 17:53:58,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:53:58,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094269568] [2021-12-06 17:53:58,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094269568] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:53:58,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465924415] [2021-12-06 17:53:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:53:58,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:53:58,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:53:58,761 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:53:58,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 17:53:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:53:58,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:53:58,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:53:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-06 17:53:58,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:53:58,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465924415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:53:58,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:53:58,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:53:58,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373763796] [2021-12-06 17:53:58,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:53:58,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:53:58,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:53:58,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:53:58,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:53:58,926 INFO L87 Difference]: Start difference. First operand 33589 states and 45640 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 17:53:59,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:53:59,915 INFO L93 Difference]: Finished difference Result 58387 states and 78608 transitions. [2021-12-06 17:53:59,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:53:59,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 161 [2021-12-06 17:53:59,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:53:59,983 INFO L225 Difference]: With dead ends: 58387 [2021-12-06 17:53:59,983 INFO L226 Difference]: Without dead ends: 34097 [2021-12-06 17:54:00,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:00,013 INFO L933 BasicCegarLoop]: 4185 mSDtfsCounter, 4107 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 4355 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:00,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4107 Valid, 4355 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:00,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34097 states. [2021-12-06 17:54:01,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34097 to 33589. [2021-12-06 17:54:01,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33589 states, 28856 states have (on average 1.3198294981979484) internal successors, (38085), 29114 states have internal predecessors, (38085), 2603 states have call successors, (2603), 1937 states have call predecessors, (2603), 2128 states have return successors, (4736), 2569 states have call predecessors, (4736), 2601 states have call successors, (4736) [2021-12-06 17:54:01,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33589 states to 33589 states and 45424 transitions. [2021-12-06 17:54:01,388 INFO L78 Accepts]: Start accepts. Automaton has 33589 states and 45424 transitions. Word has length 161 [2021-12-06 17:54:01,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:01,389 INFO L470 AbstractCegarLoop]: Abstraction has 33589 states and 45424 transitions. [2021-12-06 17:54:01,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 17:54:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 33589 states and 45424 transitions. [2021-12-06 17:54:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 17:54:01,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:01,410 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:01,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 17:54:01,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:01,612 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:01,613 INFO L85 PathProgramCache]: Analyzing trace with hash -251057197, now seen corresponding path program 1 times [2021-12-06 17:54:01,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:01,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264475454] [2021-12-06 17:54:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:01,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:54:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 17:54:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:54:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:54:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-06 17:54:01,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:01,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264475454] [2021-12-06 17:54:01,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264475454] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:01,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17673340] [2021-12-06 17:54:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:01,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:01,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:01,702 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:01,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 17:54:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:01,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:54:01,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-06 17:54:01,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:01,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17673340] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:01,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:01,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:54:01,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604053695] [2021-12-06 17:54:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:01,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:54:01,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:01,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:54:01,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:01,878 INFO L87 Difference]: Start difference. First operand 33589 states and 45424 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 17:54:02,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:02,884 INFO L93 Difference]: Finished difference Result 57833 states and 77578 transitions. [2021-12-06 17:54:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:54:02,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 161 [2021-12-06 17:54:02,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:02,958 INFO L225 Difference]: With dead ends: 57833 [2021-12-06 17:54:02,958 INFO L226 Difference]: Without dead ends: 34385 [2021-12-06 17:54:02,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:02,992 INFO L933 BasicCegarLoop]: 4199 mSDtfsCounter, 4106 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4106 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:02,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4106 Valid, 4371 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34385 states. [2021-12-06 17:54:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34385 to 33517. [2021-12-06 17:54:04,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33517 states, 28784 states have (on average 1.3131253474152307) internal successors, (37797), 29042 states have internal predecessors, (37797), 2603 states have call successors, (2603), 1937 states have call predecessors, (2603), 2128 states have return successors, (4736), 2569 states have call predecessors, (4736), 2601 states have call successors, (4736) [2021-12-06 17:54:04,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33517 states to 33517 states and 45136 transitions. [2021-12-06 17:54:04,200 INFO L78 Accepts]: Start accepts. Automaton has 33517 states and 45136 transitions. Word has length 161 [2021-12-06 17:54:04,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:04,201 INFO L470 AbstractCegarLoop]: Abstraction has 33517 states and 45136 transitions. [2021-12-06 17:54:04,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 17:54:04,201 INFO L276 IsEmpty]: Start isEmpty. Operand 33517 states and 45136 transitions. [2021-12-06 17:54:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 17:54:04,221 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:04,222 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:04,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 17:54:04,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:04,423 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:04,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2084105626, now seen corresponding path program 1 times [2021-12-06 17:54:04,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:04,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066125188] [2021-12-06 17:54:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:04,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:54:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 17:54:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 17:54:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:54:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-06 17:54:04,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:04,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066125188] [2021-12-06 17:54:04,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066125188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:04,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:54:04,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:54:04,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785366236] [2021-12-06 17:54:04,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:04,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:54:04,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:04,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:54:04,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:54:04,494 INFO L87 Difference]: Start difference. First operand 33517 states and 45136 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-06 17:54:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:05,683 INFO L93 Difference]: Finished difference Result 63727 states and 84123 transitions. [2021-12-06 17:54:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:54:05,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 161 [2021-12-06 17:54:05,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:05,818 INFO L225 Difference]: With dead ends: 63727 [2021-12-06 17:54:05,819 INFO L226 Difference]: Without dead ends: 32355 [2021-12-06 17:54:05,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:05,851 INFO L933 BasicCegarLoop]: 4146 mSDtfsCounter, 294 mSDsluCounter, 12026 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 16172 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:05,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 16172 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:54:05,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32355 states. [2021-12-06 17:54:07,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32355 to 30363. [2021-12-06 17:54:07,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30363 states, 26282 states have (on average 1.3175937904269082) internal successors, (34629), 26796 states have internal predecessors, (34629), 1983 states have call successors, (1983), 1489 states have call predecessors, (1983), 2096 states have return successors, (3933), 2093 states have call predecessors, (3933), 1981 states have call successors, (3933) [2021-12-06 17:54:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30363 states to 30363 states and 40545 transitions. [2021-12-06 17:54:07,254 INFO L78 Accepts]: Start accepts. Automaton has 30363 states and 40545 transitions. Word has length 161 [2021-12-06 17:54:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:07,254 INFO L470 AbstractCegarLoop]: Abstraction has 30363 states and 40545 transitions. [2021-12-06 17:54:07,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-06 17:54:07,255 INFO L276 IsEmpty]: Start isEmpty. Operand 30363 states and 40545 transitions. [2021-12-06 17:54:07,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-06 17:54:07,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:07,269 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:07,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 17:54:07,269 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:07,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:07,270 INFO L85 PathProgramCache]: Analyzing trace with hash 641108433, now seen corresponding path program 1 times [2021-12-06 17:54:07,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:07,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201208935] [2021-12-06 17:54:07,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:07,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 17:54:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 17:54:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:54:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:54:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:07,329 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-06 17:54:07,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:07,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201208935] [2021-12-06 17:54:07,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201208935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:07,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:54:07,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:54:07,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780616298] [2021-12-06 17:54:07,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:07,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:54:07,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:07,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:54:07,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:54:07,331 INFO L87 Difference]: Start difference. First operand 30363 states and 40545 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-06 17:54:08,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:08,332 INFO L93 Difference]: Finished difference Result 53149 states and 69944 transitions. [2021-12-06 17:54:08,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:54:08,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 161 [2021-12-06 17:54:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:08,381 INFO L225 Difference]: With dead ends: 53149 [2021-12-06 17:54:08,381 INFO L226 Difference]: Without dead ends: 24923 [2021-12-06 17:54:08,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:08,416 INFO L933 BasicCegarLoop]: 4145 mSDtfsCounter, 294 mSDsluCounter, 12025 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 16170 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:08,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 16170 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:54:08,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24923 states. [2021-12-06 17:54:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24923 to 23065. [2021-12-06 17:54:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23065 states, 20082 states have (on average 1.3415496464495569) internal successors, (26941), 20442 states have internal predecessors, (26941), 1457 states have call successors, (1457), 1101 states have call predecessors, (1457), 1524 states have return successors, (2723), 1529 states have call predecessors, (2723), 1455 states have call successors, (2723) [2021-12-06 17:54:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23065 states to 23065 states and 31121 transitions. [2021-12-06 17:54:09,282 INFO L78 Accepts]: Start accepts. Automaton has 23065 states and 31121 transitions. Word has length 161 [2021-12-06 17:54:09,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:09,283 INFO L470 AbstractCegarLoop]: Abstraction has 23065 states and 31121 transitions. [2021-12-06 17:54:09,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-06 17:54:09,283 INFO L276 IsEmpty]: Start isEmpty. Operand 23065 states and 31121 transitions. [2021-12-06 17:54:09,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-06 17:54:09,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:09,294 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:09,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 17:54:09,294 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:09,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:09,294 INFO L85 PathProgramCache]: Analyzing trace with hash -22034244, now seen corresponding path program 1 times [2021-12-06 17:54:09,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:09,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230196056] [2021-12-06 17:54:09,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:09,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:54:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:54:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:54:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 17:54:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,356 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-06 17:54:09,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:09,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230196056] [2021-12-06 17:54:09,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230196056] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:09,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246524161] [2021-12-06 17:54:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:09,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:09,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:09,357 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:09,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 17:54:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:09,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:54:09,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 17:54:09,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:09,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246524161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:09,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:09,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:54:09,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636168052] [2021-12-06 17:54:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:09,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:54:09,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:09,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:54:09,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:09,574 INFO L87 Difference]: Start difference. First operand 23065 states and 31121 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 17:54:10,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:10,315 INFO L93 Difference]: Finished difference Result 36999 states and 50557 transitions. [2021-12-06 17:54:10,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:54:10,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 163 [2021-12-06 17:54:10,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:10,357 INFO L225 Difference]: With dead ends: 36999 [2021-12-06 17:54:10,357 INFO L226 Difference]: Without dead ends: 23165 [2021-12-06 17:54:10,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:10,383 INFO L933 BasicCegarLoop]: 4250 mSDtfsCounter, 141 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 8376 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:10,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 8376 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:10,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23165 states. [2021-12-06 17:54:11,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23165 to 23065. [2021-12-06 17:54:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23065 states, 20082 states have (on average 1.3218304949706206) internal successors, (26545), 20442 states have internal predecessors, (26545), 1457 states have call successors, (1457), 1101 states have call predecessors, (1457), 1524 states have return successors, (2723), 1529 states have call predecessors, (2723), 1455 states have call successors, (2723) [2021-12-06 17:54:11,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23065 states to 23065 states and 30725 transitions. [2021-12-06 17:54:11,286 INFO L78 Accepts]: Start accepts. Automaton has 23065 states and 30725 transitions. Word has length 163 [2021-12-06 17:54:11,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:11,286 INFO L470 AbstractCegarLoop]: Abstraction has 23065 states and 30725 transitions. [2021-12-06 17:54:11,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 17:54:11,287 INFO L276 IsEmpty]: Start isEmpty. Operand 23065 states and 30725 transitions. [2021-12-06 17:54:11,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-06 17:54:11,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:11,297 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:11,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 17:54:11,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:11,498 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:11,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:11,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1309860060, now seen corresponding path program 1 times [2021-12-06 17:54:11,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:11,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441486675] [2021-12-06 17:54:11,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:11,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:54:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:54:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:54:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 17:54:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,597 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-06 17:54:11,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:11,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441486675] [2021-12-06 17:54:11,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441486675] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:11,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254579746] [2021-12-06 17:54:11,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:11,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:11,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:11,598 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:11,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 17:54:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:11,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:54:11,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:11,764 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:54:11,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:11,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254579746] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:11,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:11,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:54:11,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722089983] [2021-12-06 17:54:11,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:11,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:54:11,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:11,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:54:11,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:11,765 INFO L87 Difference]: Start difference. First operand 23065 states and 30725 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 17:54:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:12,497 INFO L93 Difference]: Finished difference Result 40981 states and 54667 transitions. [2021-12-06 17:54:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:54:12,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 163 [2021-12-06 17:54:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:12,535 INFO L225 Difference]: With dead ends: 40981 [2021-12-06 17:54:12,535 INFO L226 Difference]: Without dead ends: 21259 [2021-12-06 17:54:12,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:12,565 INFO L933 BasicCegarLoop]: 4146 mSDtfsCounter, 4121 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4121 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:12,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4121 Valid, 4178 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:12,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21259 states. [2021-12-06 17:54:13,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21259 to 20493. [2021-12-06 17:54:13,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20493 states, 17926 states have (on average 1.2979471159210085) internal successors, (23267), 18223 states have internal predecessors, (23267), 1261 states have call successors, (1261), 953 states have call predecessors, (1261), 1304 states have return successors, (2213), 1320 states have call predecessors, (2213), 1259 states have call successors, (2213) [2021-12-06 17:54:13,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20493 states to 20493 states and 26741 transitions. [2021-12-06 17:54:13,458 INFO L78 Accepts]: Start accepts. Automaton has 20493 states and 26741 transitions. Word has length 163 [2021-12-06 17:54:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:13,458 INFO L470 AbstractCegarLoop]: Abstraction has 20493 states and 26741 transitions. [2021-12-06 17:54:13,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 17:54:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 20493 states and 26741 transitions. [2021-12-06 17:54:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-06 17:54:13,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:13,468 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:13,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-06 17:54:13,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:13,669 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:13,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:13,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1003109181, now seen corresponding path program 1 times [2021-12-06 17:54:13,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:13,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135624320] [2021-12-06 17:54:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:13,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:54:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:54:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 17:54:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 17:54:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 17:54:13,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:13,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135624320] [2021-12-06 17:54:13,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135624320] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:13,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197343815] [2021-12-06 17:54:13,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:13,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:13,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:13,752 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:13,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 17:54:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:13,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:54:13,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:13,951 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 17:54:13,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:13,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197343815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:13,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:13,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:54:13,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842140327] [2021-12-06 17:54:13,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:13,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:54:13,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:13,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:54:13,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:13,954 INFO L87 Difference]: Start difference. First operand 20493 states and 26741 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 17:54:14,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:14,845 INFO L93 Difference]: Finished difference Result 33605 states and 44123 transitions. [2021-12-06 17:54:14,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:54:14,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 163 [2021-12-06 17:54:14,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:14,881 INFO L225 Difference]: With dead ends: 33605 [2021-12-06 17:54:14,881 INFO L226 Difference]: Without dead ends: 20585 [2021-12-06 17:54:14,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:14,903 INFO L933 BasicCegarLoop]: 4293 mSDtfsCounter, 134 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 8418 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:14,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 8418 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:14,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20585 states. [2021-12-06 17:54:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20585 to 20493. [2021-12-06 17:54:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20493 states, 17926 states have (on average 1.2739596117371417) internal successors, (22837), 18223 states have internal predecessors, (22837), 1261 states have call successors, (1261), 953 states have call predecessors, (1261), 1304 states have return successors, (2213), 1320 states have call predecessors, (2213), 1259 states have call successors, (2213) [2021-12-06 17:54:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20493 states to 20493 states and 26311 transitions. [2021-12-06 17:54:15,694 INFO L78 Accepts]: Start accepts. Automaton has 20493 states and 26311 transitions. Word has length 163 [2021-12-06 17:54:15,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:15,694 INFO L470 AbstractCegarLoop]: Abstraction has 20493 states and 26311 transitions. [2021-12-06 17:54:15,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 17:54:15,695 INFO L276 IsEmpty]: Start isEmpty. Operand 20493 states and 26311 transitions. [2021-12-06 17:54:15,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-06 17:54:15,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:15,702 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:15,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-06 17:54:15,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-06 17:54:15,903 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:15,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:15,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1504083699, now seen corresponding path program 1 times [2021-12-06 17:54:15,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:15,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708379991] [2021-12-06 17:54:15,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:15,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:54:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:54:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:54:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 17:54:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-06 17:54:15,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:15,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708379991] [2021-12-06 17:54:15,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708379991] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:15,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358427288] [2021-12-06 17:54:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:15,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:15,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:15,995 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:15,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-06 17:54:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:16,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:54:16,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 17:54:16,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:16,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358427288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:16,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:16,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2021-12-06 17:54:16,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784945729] [2021-12-06 17:54:16,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:16,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:54:16,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:16,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:54:16,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:16,158 INFO L87 Difference]: Start difference. First operand 20493 states and 26311 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 17:54:16,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:16,872 INFO L93 Difference]: Finished difference Result 29178 states and 37623 transitions. [2021-12-06 17:54:16,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:54:16,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 164 [2021-12-06 17:54:16,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:16,905 INFO L225 Difference]: With dead ends: 29178 [2021-12-06 17:54:16,905 INFO L226 Difference]: Without dead ends: 20523 [2021-12-06 17:54:16,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:54:16,920 INFO L933 BasicCegarLoop]: 4273 mSDtfsCounter, 155 mSDsluCounter, 4117 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 8390 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:16,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 8390 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:16,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20523 states. [2021-12-06 17:54:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20523 to 20493. [2021-12-06 17:54:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20493 states, 17926 states have (on average 1.2651455985719067) internal successors, (22679), 18223 states have internal predecessors, (22679), 1261 states have call successors, (1261), 953 states have call predecessors, (1261), 1304 states have return successors, (2213), 1320 states have call predecessors, (2213), 1259 states have call successors, (2213) [2021-12-06 17:54:17,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20493 states to 20493 states and 26153 transitions. [2021-12-06 17:54:17,710 INFO L78 Accepts]: Start accepts. Automaton has 20493 states and 26153 transitions. Word has length 164 [2021-12-06 17:54:17,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:17,710 INFO L470 AbstractCegarLoop]: Abstraction has 20493 states and 26153 transitions. [2021-12-06 17:54:17,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 17:54:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 20493 states and 26153 transitions. [2021-12-06 17:54:17,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-06 17:54:17,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:17,718 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:17,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-06 17:54:17,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:17,919 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:17,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:17,920 INFO L85 PathProgramCache]: Analyzing trace with hash -465623340, now seen corresponding path program 1 times [2021-12-06 17:54:17,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:17,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677809351] [2021-12-06 17:54:17,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:17,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:54:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:54:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:54:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:17,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:18,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 17:54:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-06 17:54:18,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:18,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677809351] [2021-12-06 17:54:18,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677809351] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:18,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554074076] [2021-12-06 17:54:18,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:18,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:18,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:18,004 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:18,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-06 17:54:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:18,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:54:18,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-06 17:54:18,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:18,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554074076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:18,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:18,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2021-12-06 17:54:18,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069198354] [2021-12-06 17:54:18,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:18,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:54:18,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:54:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:54:18,242 INFO L87 Difference]: Start difference. First operand 20493 states and 26153 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:54:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:19,112 INFO L93 Difference]: Finished difference Result 38811 states and 48454 transitions. [2021-12-06 17:54:19,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:54:19,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 165 [2021-12-06 17:54:19,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:19,149 INFO L225 Difference]: With dead ends: 38811 [2021-12-06 17:54:19,149 INFO L226 Difference]: Without dead ends: 20457 [2021-12-06 17:54:19,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:54:19,172 INFO L933 BasicCegarLoop]: 4121 mSDtfsCounter, 4145 mSDsluCounter, 8103 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 12224 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:19,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4154 Valid, 12224 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:54:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20457 states. [2021-12-06 17:54:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20457 to 20457. [2021-12-06 17:54:19,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20457 states, 17890 states have (on average 1.2502515371716043) internal successors, (22367), 18187 states have internal predecessors, (22367), 1261 states have call successors, (1261), 953 states have call predecessors, (1261), 1304 states have return successors, (2213), 1320 states have call predecessors, (2213), 1259 states have call successors, (2213) [2021-12-06 17:54:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20457 states to 20457 states and 25841 transitions. [2021-12-06 17:54:20,030 INFO L78 Accepts]: Start accepts. Automaton has 20457 states and 25841 transitions. Word has length 165 [2021-12-06 17:54:20,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:20,030 INFO L470 AbstractCegarLoop]: Abstraction has 20457 states and 25841 transitions. [2021-12-06 17:54:20,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:54:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 20457 states and 25841 transitions. [2021-12-06 17:54:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-06 17:54:20,037 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:20,038 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:20,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-12-06 17:54:20,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:20,239 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:20,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:20,240 INFO L85 PathProgramCache]: Analyzing trace with hash 22423766, now seen corresponding path program 1 times [2021-12-06 17:54:20,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:20,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832225733] [2021-12-06 17:54:20,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:20,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:54:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:54:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 17:54:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 17:54:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-06 17:54:20,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:20,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832225733] [2021-12-06 17:54:20,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832225733] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:20,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516454375] [2021-12-06 17:54:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:20,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:20,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:20,319 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:20,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-06 17:54:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:20,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:54:20,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-12-06 17:54:20,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:20,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516454375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:20,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:20,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2021-12-06 17:54:20,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039959445] [2021-12-06 17:54:20,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:20,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:54:20,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:54:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:54:20,493 INFO L87 Difference]: Start difference. First operand 20457 states and 25841 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:54:21,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:21,284 INFO L93 Difference]: Finished difference Result 32886 states and 41058 transitions. [2021-12-06 17:54:21,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:54:21,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 165 [2021-12-06 17:54:21,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:21,308 INFO L225 Difference]: With dead ends: 32886 [2021-12-06 17:54:21,308 INFO L226 Difference]: Without dead ends: 14561 [2021-12-06 17:54:21,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:54:21,332 INFO L933 BasicCegarLoop]: 4137 mSDtfsCounter, 87 mSDsluCounter, 12435 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 16572 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:21,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 16572 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14561 states. [2021-12-06 17:54:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14561 to 13864. [2021-12-06 17:54:21,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13864 states, 12145 states have (on average 1.2735282009057225) internal successors, (15467), 12331 states have internal predecessors, (15467), 850 states have call successors, (850), 649 states have call predecessors, (850), 867 states have return successors, (1346), 885 states have call predecessors, (1346), 848 states have call successors, (1346) [2021-12-06 17:54:21,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13864 states to 13864 states and 17663 transitions. [2021-12-06 17:54:21,907 INFO L78 Accepts]: Start accepts. Automaton has 13864 states and 17663 transitions. Word has length 165 [2021-12-06 17:54:21,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:21,907 INFO L470 AbstractCegarLoop]: Abstraction has 13864 states and 17663 transitions. [2021-12-06 17:54:21,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:54:21,907 INFO L276 IsEmpty]: Start isEmpty. Operand 13864 states and 17663 transitions. [2021-12-06 17:54:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-06 17:54:21,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:21,912 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:21,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-12-06 17:54:22,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-06 17:54:22,113 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:22,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1805871025, now seen corresponding path program 1 times [2021-12-06 17:54:22,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:22,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786283566] [2021-12-06 17:54:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:22,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:54:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:54:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 17:54:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 17:54:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-12-06 17:54:22,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:22,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786283566] [2021-12-06 17:54:22,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786283566] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:22,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022216158] [2021-12-06 17:54:22,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:22,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:22,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:22,207 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:22,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-06 17:54:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:22,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:54:22,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:22,373 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-06 17:54:22,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:22,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022216158] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:22,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:22,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2021-12-06 17:54:22,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182669093] [2021-12-06 17:54:22,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:22,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:54:22,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:22,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:54:22,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:54:22,374 INFO L87 Difference]: Start difference. First operand 13864 states and 17663 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:54:22,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:22,867 INFO L93 Difference]: Finished difference Result 23605 states and 29361 transitions. [2021-12-06 17:54:22,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:54:22,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 165 [2021-12-06 17:54:22,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:22,888 INFO L225 Difference]: With dead ends: 23605 [2021-12-06 17:54:22,888 INFO L226 Difference]: Without dead ends: 11873 [2021-12-06 17:54:22,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:54:22,902 INFO L933 BasicCegarLoop]: 4136 mSDtfsCounter, 49 mSDsluCounter, 12422 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 16558 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:22,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 16558 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11873 states. [2021-12-06 17:54:23,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11873 to 11651. [2021-12-06 17:54:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11651 states, 10225 states have (on average 1.2828361858190709) internal successors, (13117), 10367 states have internal predecessors, (13117), 713 states have call successors, (713), 539 states have call predecessors, (713), 711 states have return successors, (1043), 746 states have call predecessors, (1043), 711 states have call successors, (1043) [2021-12-06 17:54:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 14873 transitions. [2021-12-06 17:54:23,366 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 14873 transitions. Word has length 165 [2021-12-06 17:54:23,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:23,367 INFO L470 AbstractCegarLoop]: Abstraction has 11651 states and 14873 transitions. [2021-12-06 17:54:23,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:54:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 14873 transitions. [2021-12-06 17:54:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-06 17:54:23,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:23,370 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:23,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-12-06 17:54:23,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-06 17:54:23,572 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:23,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1637482603, now seen corresponding path program 1 times [2021-12-06 17:54:23,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:23,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178754587] [2021-12-06 17:54:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:23,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:54:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:54:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 17:54:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-06 17:54:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-06 17:54:23,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:23,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178754587] [2021-12-06 17:54:23,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178754587] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:54:23,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715079358] [2021-12-06 17:54:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:23,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:54:23,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:54:23,649 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:54:23,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-06 17:54:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:23,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:54:23,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:54:23,812 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 17:54:23,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:54:23,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715079358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:23,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:54:23,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2021-12-06 17:54:23,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781621449] [2021-12-06 17:54:23,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:23,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:54:23,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:23,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:54:23,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:54:23,813 INFO L87 Difference]: Start difference. First operand 11651 states and 14873 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:54:24,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:24,076 INFO L93 Difference]: Finished difference Result 16233 states and 20187 transitions. [2021-12-06 17:54:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:54:24,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 165 [2021-12-06 17:54:24,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:24,084 INFO L225 Difference]: With dead ends: 16233 [2021-12-06 17:54:24,084 INFO L226 Difference]: Without dead ends: 4951 [2021-12-06 17:54:24,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:54:24,094 INFO L933 BasicCegarLoop]: 4136 mSDtfsCounter, 10 mSDsluCounter, 12407 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 16543 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:24,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 16543 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:54:24,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4951 states. [2021-12-06 17:54:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4951 to 4951. [2021-12-06 17:54:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4951 states, 4523 states have (on average 1.4623037806765422) internal successors, (6614), 4545 states have internal predecessors, (6614), 240 states have call successors, (240), 171 states have call predecessors, (240), 186 states have return successors, (263), 236 states have call predecessors, (263), 238 states have call successors, (263) [2021-12-06 17:54:24,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4951 states to 4951 states and 7117 transitions. [2021-12-06 17:54:24,240 INFO L78 Accepts]: Start accepts. Automaton has 4951 states and 7117 transitions. Word has length 165 [2021-12-06 17:54:24,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:24,241 INFO L470 AbstractCegarLoop]: Abstraction has 4951 states and 7117 transitions. [2021-12-06 17:54:24,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 17:54:24,241 INFO L276 IsEmpty]: Start isEmpty. Operand 4951 states and 7117 transitions. [2021-12-06 17:54:24,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-06 17:54:24,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:24,243 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:24,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-12-06 17:54:24,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-06 17:54:24,444 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:24,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1365063130, now seen corresponding path program 1 times [2021-12-06 17:54:24,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:24,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545911539] [2021-12-06 17:54:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:24,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:54:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:54:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 17:54:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 17:54:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-06 17:54:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:24,576 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-12-06 17:54:24,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:24,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545911539] [2021-12-06 17:54:24,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545911539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:24,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:54:24,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:54:24,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578084079] [2021-12-06 17:54:24,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:24,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:54:24,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:24,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:54:24,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:54:24,578 INFO L87 Difference]: Start difference. First operand 4951 states and 7117 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 6 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-06 17:54:25,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:25,205 INFO L93 Difference]: Finished difference Result 5129 states and 7302 transitions. [2021-12-06 17:54:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 17:54:25,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 6 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 203 [2021-12-06 17:54:25,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:25,213 INFO L225 Difference]: With dead ends: 5129 [2021-12-06 17:54:25,213 INFO L226 Difference]: Without dead ends: 5126 [2021-12-06 17:54:25,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:54:25,215 INFO L933 BasicCegarLoop]: 4284 mSDtfsCounter, 4634 mSDsluCounter, 16407 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4667 SdHoareTripleChecker+Valid, 20691 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:25,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4667 Valid, 20691 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 17:54:25,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2021-12-06 17:54:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 4950. [2021-12-06 17:54:25,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4950 states, 4523 states have (on average 1.4616405040902056) internal successors, (6611), 4544 states have internal predecessors, (6611), 239 states have call successors, (239), 171 states have call predecessors, (239), 186 states have return successors, (263), 236 states have call predecessors, (263), 238 states have call successors, (263) [2021-12-06 17:54:25,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4950 states to 4950 states and 7113 transitions. [2021-12-06 17:54:25,375 INFO L78 Accepts]: Start accepts. Automaton has 4950 states and 7113 transitions. Word has length 203 [2021-12-06 17:54:25,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:25,376 INFO L470 AbstractCegarLoop]: Abstraction has 4950 states and 7113 transitions. [2021-12-06 17:54:25,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 6 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-06 17:54:25,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4950 states and 7113 transitions. [2021-12-06 17:54:25,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-06 17:54:25,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:25,378 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:25,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 17:54:25,378 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:25,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:25,379 INFO L85 PathProgramCache]: Analyzing trace with hash -575528242, now seen corresponding path program 1 times [2021-12-06 17:54:25,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:25,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491333140] [2021-12-06 17:54:25,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:25,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 17:54:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:54:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 17:54:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:54:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 17:54:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 17:54:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:54:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 17:54:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 17:54:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:54:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-06 17:54:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:54:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-12-06 17:54:25,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:54:25,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491333140] [2021-12-06 17:54:25,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491333140] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:54:25,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:54:25,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:54:25,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274154925] [2021-12-06 17:54:25,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:54:25,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:54:25,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:54:25,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:54:25,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:54:25,449 INFO L87 Difference]: Start difference. First operand 4950 states and 7113 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 17:54:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:54:25,799 INFO L93 Difference]: Finished difference Result 6530 states and 8949 transitions. [2021-12-06 17:54:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:54:25,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 207 [2021-12-06 17:54:25,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:54:25,812 INFO L225 Difference]: With dead ends: 6530 [2021-12-06 17:54:25,812 INFO L226 Difference]: Without dead ends: 5474 [2021-12-06 17:54:25,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:54:25,815 INFO L933 BasicCegarLoop]: 4190 mSDtfsCounter, 195 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 16416 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:54:25,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 16416 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:54:25,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2021-12-06 17:54:25,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 4953. [2021-12-06 17:54:25,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4953 states, 4526 states have (on average 1.4613345117101193) internal successors, (6614), 4547 states have internal predecessors, (6614), 239 states have call successors, (239), 171 states have call predecessors, (239), 186 states have return successors, (263), 236 states have call predecessors, (263), 238 states have call successors, (263) [2021-12-06 17:54:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 7116 transitions. [2021-12-06 17:54:25,979 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 7116 transitions. Word has length 207 [2021-12-06 17:54:25,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:54:25,979 INFO L470 AbstractCegarLoop]: Abstraction has 4953 states and 7116 transitions. [2021-12-06 17:54:25,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 17:54:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 7116 transitions. [2021-12-06 17:54:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-06 17:54:25,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:54:25,981 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:54:25,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 17:54:25,982 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:54:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:54:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 567683991, now seen corresponding path program 1 times [2021-12-06 17:54:25,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:54:25,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524983895] [2021-12-06 17:54:25,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:54:25,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:54:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:54:25,994 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:54:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:54:26,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:54:26,079 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:54:26,079 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-06 17:54:26,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-06 17:54:26,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 17:54:26,083 INFO L732 BasicCegarLoop]: Path program 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] [2021-12-06 17:54:26,086 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:54:26,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:54:26 BoogieIcfgContainer [2021-12-06 17:54:26,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:54:26,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:54:26,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:54:26,226 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:54:26,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:53:40" (3/4) ... [2021-12-06 17:54:26,228 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 17:54:26,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:54:26,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:54:26,362 INFO L158 Benchmark]: Toolchain (without parser) took 53446.20ms. Allocated memory was 102.8MB in the beginning and 3.4GB in the end (delta: 3.3GB). Free memory was 55.1MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2021-12-06 17:54:26,362 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:54:26,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2652.91ms. Allocated memory was 102.8MB in the beginning and 165.7MB in the end (delta: 62.9MB). Free memory was 54.8MB in the beginning and 67.0MB in the end (delta: -12.2MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2021-12-06 17:54:26,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 338.20ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 67.0MB in the beginning and 80.5MB in the end (delta: -13.5MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2021-12-06 17:54:26,363 INFO L158 Benchmark]: Boogie Preprocessor took 376.42ms. Allocated memory was 199.2MB in the beginning and 367.0MB in the end (delta: 167.8MB). Free memory was 80.5MB in the beginning and 230.3MB in the end (delta: -149.7MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2021-12-06 17:54:26,363 INFO L158 Benchmark]: RCFGBuilder took 4434.76ms. Allocated memory was 367.0MB in the beginning and 627.0MB in the end (delta: 260.0MB). Free memory was 230.3MB in the beginning and 260.3MB in the end (delta: -30.0MB). Peak memory consumption was 366.6MB. Max. memory is 16.1GB. [2021-12-06 17:54:26,364 INFO L158 Benchmark]: TraceAbstraction took 45500.70ms. Allocated memory was 627.0MB in the beginning and 3.4GB in the end (delta: 2.8GB). Free memory was 260.3MB in the beginning and 602.9MB in the end (delta: -342.6MB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2021-12-06 17:54:26,364 INFO L158 Benchmark]: Witness Printer took 135.16ms. Allocated memory is still 3.4GB. Free memory was 602.9MB in the beginning and 2.6GB in the end (delta: -2.0GB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2021-12-06 17:54:26,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2652.91ms. Allocated memory was 102.8MB in the beginning and 165.7MB in the end (delta: 62.9MB). Free memory was 54.8MB in the beginning and 67.0MB in the end (delta: -12.2MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 338.20ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 67.0MB in the beginning and 80.5MB in the end (delta: -13.5MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 376.42ms. Allocated memory was 199.2MB in the beginning and 367.0MB in the end (delta: 167.8MB). Free memory was 80.5MB in the beginning and 230.3MB in the end (delta: -149.7MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * RCFGBuilder took 4434.76ms. Allocated memory was 367.0MB in the beginning and 627.0MB in the end (delta: 260.0MB). Free memory was 230.3MB in the beginning and 260.3MB in the end (delta: -30.0MB). Peak memory consumption was 366.6MB. Max. memory is 16.1GB. * TraceAbstraction took 45500.70ms. Allocated memory was 627.0MB in the beginning and 3.4GB in the end (delta: 2.8GB). Free memory was 260.3MB in the beginning and 602.9MB in the end (delta: -342.6MB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 135.16ms. Allocated memory is still 3.4GB. Free memory was 602.9MB in the beginning and 2.6GB in the end (delta: -2.0GB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 11173]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L33] int d= 4; [L34] int c= 3; [L35] int e= 5; [L36] int a= 1; [L37] int f= 6; [L38] int b= 2; [L40] int a9 = 18; [L41] int a27 = 1; [L42] int a2 = 10; [L43] int a16 = 1; [L44] int a15 = 1; [L45] int a12 = 4; [L46] int a25 = 1; [L47] int a20 = 5; [L11177] int m_pc = 0; [L11178] int t1_pc = 0; [L11179] int t2_pc = 0; [L11180] int m_st ; [L11181] int t1_st ; [L11182] int t2_st ; [L11183] int m_i ; [L11184] int t1_i ; [L11185] int t2_i ; [L11186] int M_E = 2; [L11187] int T1_E = 2; [L11188] int T2_E = 2; [L11189] int E_M = 2; [L11190] int E_1 = 2; [L11191] int E_2 = 2; [L11196] int token ; [L11198] int local ; VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0, token=0] [L11776] COND FALSE !(__VERIFIER_nondet_int()) [L11779] CALL main2() [L11763] int __retres1 ; [L11767] CALL init_model() [L11677] m_i = 1 [L11678] t1_i = 1 [L11679] t2_i = 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11767] RET init_model() [L11768] CALL start_simulation() [L11704] int kernel_st ; [L11705] int tmp ; [L11706] int tmp___0 ; [L11710] kernel_st = 0 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11711] FCALL update_channels() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11712] CALL init_threads() [L11396] COND TRUE m_i == 1 [L11397] m_st = 0 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11401] COND TRUE t1_i == 1 [L11402] t1_st = 0 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11406] COND TRUE t2_i == 1 [L11407] t2_st = 0 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11712] RET init_threads() [L11713] CALL fire_delta_events() VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11509] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11514] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11519] COND FALSE !(T2_E == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11524] COND FALSE !(E_M == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11529] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11534] COND FALSE !(E_2 == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11713] RET fire_delta_events() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11714] CALL activate_threads() VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11582] int tmp ; [L11583] int tmp___0 ; [L11584] int tmp___1 ; [L11588] CALL, EXPR is_master_triggered() [L11328] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11331] COND FALSE !(m_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11341] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11343] return (__retres1); VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11588] RET, EXPR is_master_triggered() [L11588] tmp = is_master_triggered() [L11590] COND FALSE !(\read(tmp)) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, token=0] [L11596] CALL, EXPR is_transmit1_triggered() [L11347] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11350] COND FALSE !(t1_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11360] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11362] return (__retres1); VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11596] RET, EXPR is_transmit1_triggered() [L11596] tmp___0 = is_transmit1_triggered() [L11598] COND FALSE !(\read(tmp___0)) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, tmp___0=0, token=0] [L11604] CALL, EXPR is_transmit2_triggered() [L11366] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11369] COND FALSE !(t2_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11379] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11381] return (__retres1); VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11604] RET, EXPR is_transmit2_triggered() [L11604] tmp___1 = is_transmit2_triggered() [L11606] COND FALSE !(\read(tmp___1)) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, tmp___0=0, tmp___1=0, token=0] [L11714] RET activate_threads() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11715] CALL reset_delta_events() VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11547] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11552] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11557] COND FALSE !(T2_E == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11562] COND FALSE !(E_M == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11567] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11572] COND FALSE !(E_2 == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11715] RET reset_delta_events() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11718] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11721] kernel_st = 1 [L11722] CALL eval() [L11442] int tmp ; VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11446] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11449] CALL, EXPR exists_runnable_thread() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11416] int __retres1 ; VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11419] COND TRUE m_st == 0 [L11420] __retres1 = 1 VAL [__retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11437] return (__retres1); VAL [\result=1, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11449] RET, EXPR exists_runnable_thread() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, exists_runnable_thread()=1, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11449] tmp = exists_runnable_thread() [L11451] COND TRUE \read(tmp) VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L11456] COND TRUE m_st == 0 [L11457] int tmp_ndt_1; [L11458] tmp_ndt_1 = __VERIFIER_nondet_int() [L11459] COND FALSE !(\read(tmp_ndt_1)) VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, token=0] [L11470] COND TRUE t1_st == 0 [L11471] int tmp_ndt_2; [L11472] tmp_ndt_2 = __VERIFIER_nondet_int() [L11473] COND TRUE \read(tmp_ndt_2) [L11475] t1_st = 1 [L11476] CALL transmit1() [L11259] COND TRUE t1_pc == 0 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11270] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11272] t1_pc = 1 [L11273] t1_st = 2 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L11476] RET transmit1() [L11484] COND TRUE t2_st == 0 [L11485] int tmp_ndt_3; [L11486] tmp_ndt_3 = __VERIFIER_nondet_int() [L11487] COND TRUE \read(tmp_ndt_3) [L11489] t2_st = 1 [L11490] CALL transmit2() [L11295] COND TRUE t2_pc == 0 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=1, token=0] [L11306] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=1, token=0] [L11308] t2_pc = 1 [L11309] t2_st = 2 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11490] RET transmit2() [L11446] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, tmp_ndt_3=1, token=0] [L11449] CALL, EXPR exists_runnable_thread() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11416] int __retres1 ; VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11419] COND TRUE m_st == 0 [L11420] __retres1 = 1 VAL [__retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11437] return (__retres1); VAL [\result=1, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11449] RET, EXPR exists_runnable_thread() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, exists_runnable_thread()=1, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, tmp_ndt_3=1, token=0] [L11449] tmp = exists_runnable_thread() [L11451] COND TRUE \read(tmp) VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, tmp_ndt_3=1, token=0] [L11456] COND TRUE m_st == 0 [L11457] int tmp_ndt_1; [L11458] tmp_ndt_1 = __VERIFIER_nondet_int() [L11459] COND TRUE \read(tmp_ndt_1) [L11461] m_st = 1 [L11462] CALL master() [L11201] int tmp_var = __VERIFIER_nondet_int(); [L11203] COND TRUE m_pc == 0 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=0, token=0] [L11214] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=0, token=0] [L11217] token = __VERIFIER_nondet_int() [L11218] local = token [L11219] E_1 = 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=0, token=0] [L11220] CALL immediate_notify() VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11620] CALL activate_threads() VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11582] int tmp ; [L11583] int tmp___0 ; [L11584] int tmp___1 ; [L11588] CALL, EXPR is_master_triggered() [L11328] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11331] COND FALSE !(m_pc == 1) VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11341] __retres1 = 0 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11343] return (__retres1); VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11588] RET, EXPR is_master_triggered() [L11588] tmp = is_master_triggered() [L11590] COND FALSE !(\read(tmp)) VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, token=0] [L11596] CALL, EXPR is_transmit1_triggered() [L11347] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11350] COND TRUE t1_pc == 1 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11351] COND TRUE E_1 == 1 [L11352] __retres1 = 1 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11362] return (__retres1); VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \result=1, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11596] RET, EXPR is_transmit1_triggered() [L11596] tmp___0 = is_transmit1_triggered() [L11598] COND TRUE \read(tmp___0) [L11599] t1_st = 0 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=1, token=0] [L11604] CALL, EXPR is_transmit2_triggered() [L11366] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11369] COND TRUE t2_pc == 1 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11370] COND FALSE !(E_2 == 1) VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11379] __retres1 = 0 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11381] return (__retres1); VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11604] RET, EXPR is_transmit2_triggered() [L11604] tmp___1 = is_transmit2_triggered() [L11606] COND FALSE !(\read(tmp___1)) VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=1, tmp___1=0, token=0] [L11620] RET activate_threads() VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11220] RET immediate_notify() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=1, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=0, token=0] [L11221] E_1 = 2 [L11222] m_pc = 1 [L11223] m_st = 2 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=0, token=0] [L11462] RET master() [L11470] COND TRUE t1_st == 0 [L11471] int tmp_ndt_2; [L11472] tmp_ndt_2 = __VERIFIER_nondet_int() [L11473] COND TRUE \read(tmp_ndt_2) [L11475] t1_st = 1 [L11476] CALL transmit1() [L11259] COND FALSE !(t1_pc == 0) VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11262] COND TRUE t1_pc == 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=0] [L11278] token += 1 [L11279] E_2 = 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11280] CALL immediate_notify() VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11620] CALL activate_threads() VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11582] int tmp ; [L11583] int tmp___0 ; [L11584] int tmp___1 ; [L11588] CALL, EXPR is_master_triggered() [L11328] int __retres1 ; VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11331] COND TRUE m_pc == 1 VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11332] COND FALSE !(E_M == 1) VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11341] __retres1 = 0 VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11343] return (__retres1); VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11588] RET, EXPR is_master_triggered() [L11588] tmp = is_master_triggered() [L11590] COND FALSE !(\read(tmp)) VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, token=1] [L11596] CALL, EXPR is_transmit1_triggered() [L11347] int __retres1 ; VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11350] COND TRUE t1_pc == 1 VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11351] COND FALSE !(E_1 == 1) VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11360] __retres1 = 0 VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11362] return (__retres1); VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11596] RET, EXPR is_transmit1_triggered() [L11596] tmp___0 = is_transmit1_triggered() [L11598] COND FALSE !(\read(tmp___0)) VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=0, token=1] [L11604] CALL, EXPR is_transmit2_triggered() [L11366] int __retres1 ; VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11369] COND TRUE t2_pc == 1 VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11370] COND TRUE E_2 == 1 [L11371] __retres1 = 1 VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11381] return (__retres1); VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \result=1, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=1] [L11604] RET, EXPR is_transmit2_triggered() [L11604] tmp___1 = is_transmit2_triggered() [L11606] COND TRUE \read(tmp___1) [L11607] t2_st = 0 VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, tmp=0, tmp___0=0, tmp___1=1, token=1] [L11620] RET activate_threads() VAL [\old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, token=1] [L11280] RET immediate_notify() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=1, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, token=1] [L11281] E_2 = 2 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, token=1] [L11270] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, token=1] [L11272] t1_pc = 1 [L11273] t1_st = 2 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, token=1] [L11476] RET transmit1() [L11484] COND TRUE t2_st == 0 [L11485] int tmp_ndt_3; [L11486] tmp_ndt_3 = __VERIFIER_nondet_int() [L11487] COND TRUE \read(tmp_ndt_3) [L11489] t2_st = 1 [L11490] CALL transmit2() [L11295] COND FALSE !(t2_pc == 0) VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=1] [L11298] COND TRUE t2_pc == 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=1] [L11314] token += 1 [L11315] E_M = 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11316] CALL immediate_notify() VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11620] CALL activate_threads() VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11582] int tmp ; [L11583] int tmp___0 ; [L11584] int tmp___1 ; [L11588] CALL, EXPR is_master_triggered() [L11328] int __retres1 ; VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11331] COND TRUE m_pc == 1 VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11332] COND TRUE E_M == 1 [L11333] __retres1 = 1 VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11343] return (__retres1); VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \result=1, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11588] RET, EXPR is_master_triggered() [L11588] tmp = is_master_triggered() [L11590] COND TRUE \read(tmp) [L11591] m_st = 0 VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, tmp=1, token=2] [L11596] CALL, EXPR is_transmit1_triggered() [L11347] int __retres1 ; VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11350] COND TRUE t1_pc == 1 VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11351] COND FALSE !(E_1 == 1) VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11360] __retres1 = 0 VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11362] return (__retres1); VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11596] RET, EXPR is_transmit1_triggered() [L11596] tmp___0 = is_transmit1_triggered() [L11598] COND FALSE !(\read(tmp___0)) VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, tmp=1, tmp___0=0, token=2] [L11604] CALL, EXPR is_transmit2_triggered() [L11366] int __retres1 ; VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11369] COND TRUE t2_pc == 1 VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11370] COND FALSE !(E_2 == 1) VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11379] __retres1 = 0 VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11381] return (__retres1); VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \result=0, __retres1=0, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11604] RET, EXPR is_transmit2_triggered() [L11604] tmp___1 = is_transmit2_triggered() [L11606] COND FALSE !(\read(tmp___1)) VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, tmp=1, tmp___0=0, tmp___1=0, token=2] [L11620] RET activate_threads() VAL [\old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11316] RET immediate_notify() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11317] E_M = 2 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11306] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, token=2] [L11308] t2_pc = 1 [L11309] t2_st = 2 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=2] [L11490] RET transmit2() [L11446] COND TRUE 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=1, token=2] [L11449] CALL, EXPR exists_runnable_thread() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=2] [L11416] int __retres1 ; VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=2] [L11419] COND TRUE m_st == 0 [L11420] __retres1 = 1 VAL [__retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=2] [L11437] return (__retres1); VAL [\result=1, __retres1=1, a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=2] [L11449] RET, EXPR exists_runnable_thread() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, exists_runnable_thread()=1, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=1, token=2] [L11449] tmp = exists_runnable_thread() [L11451] COND TRUE \read(tmp) VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=-2, tmp_ndt_2=-3, tmp_ndt_3=1, token=2] [L11456] COND TRUE m_st == 0 [L11457] int tmp_ndt_1; [L11458] tmp_ndt_1 = __VERIFIER_nondet_int() [L11459] COND TRUE \read(tmp_ndt_1) [L11461] m_st = 1 [L11462] CALL master() [L11201] int tmp_var = __VERIFIER_nondet_int(); [L11203] COND FALSE !(m_pc == 0) VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=5, token=2] [L11206] COND TRUE m_pc == 1 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=5, token=2] [L11228] COND FALSE !(token != local + 2) VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=5, token=2] [L11233] COND TRUE tmp_var <= 5 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=5, token=2] [L11234] COND TRUE tmp_var >= 5 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=5, token=2] [L11239] COND TRUE tmp_var <= 5 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=5, token=2] [L11240] COND TRUE tmp_var >= 5 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=5, token=2] [L11241] COND TRUE tmp_var == 5 VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp_var=5, token=2] [L11242] CALL error() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=2] [L11173] reach_error() VAL [a=1, a12=4, a15=1, a16=1, a2=10, a20=5, a25=1, a27=1, a9=18, b=2, c=3, d=4, e=5, E_1=2, E_2=2, E_M=2, f=6, local=0, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, token=2] - UnprovableResult [Line: 11088]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2323 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 45.3s, OverallIterations: 29, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69872 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69711 mSDsluCounter, 331943 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214147 mSDsCounter, 757 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5604 IncrementalHoareTripleChecker+Invalid, 6361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 757 mSolverCounterUnsat, 117796 mSDtfsCounter, 5604 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3573 GetRequests, 3351 SyntacticMatches, 6 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33589occurred in iteration=14, InterpolantAutomatonStates: 167, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.5s AutomataMinimizationTime, 28 MinimizatonAttempts, 14837 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 6960 NumberOfCodeBlocks, 6960 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 6706 ConstructedInterpolants, 0 QuantifiedInterpolants, 10859 SizeOfPredicates, 9 NumberOfNonLiveVariables, 9564 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 46 InterpolantComputations, 28 PerfectInterpolantSequences, 3368/3904 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 RESULT: Ultimate proved your program to be incorrect! [2021-12-06 17:54:26,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ca35b-ca12-4781-936a-7491cf489932/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE