./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label14.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd6046dbb3f1bc5e91393ebfb0f595a2a5a1c1d9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:50:14,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:50:14,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:50:14,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:50:14,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:50:14,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:50:14,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:50:14,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:50:14,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:50:14,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:50:14,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:50:14,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:50:14,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:50:14,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:50:14,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:50:14,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:50:14,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:50:14,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:50:14,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:50:14,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:50:14,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:50:14,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:50:14,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:50:14,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:50:14,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:50:14,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:50:14,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:50:14,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:50:14,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:50:14,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:50:14,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:50:14,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:50:14,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:50:14,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:50:14,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:50:14,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:50:14,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:50:14,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:50:14,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:50:14,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:50:14,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:50:14,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:50:14,861 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:50:14,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:50:14,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:50:14,863 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:50:14,863 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:50:14,864 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:50:14,864 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:50:14,864 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:50:14,864 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:50:14,865 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:50:14,866 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:50:14,866 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:50:14,866 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:50:14,866 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:50:14,867 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:50:14,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:50:14,868 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:50:14,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:50:14,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:50:14,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:50:14,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:50:14,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:50:14,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:50:14,869 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:50:14,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:50:14,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:50:14,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:50:14,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:50:14,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:50:14,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:50:14,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:50:14,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:50:14,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:50:14,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:50:14,873 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:50:14,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:50:14,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:50:14,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:50:14,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:50:14,875 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd6046dbb3f1bc5e91393ebfb0f595a2a5a1c1d9 [2021-10-13 07:50:15,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:50:15,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:50:15,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:50:15,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:50:15,201 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:50:15,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem03_label14.c [2021-10-13 07:50:15,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/data/85452bafd/eeaaf269f9804114aca82e815a154e3c/FLAG10a76c1e5 [2021-10-13 07:50:15,966 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:50:15,967 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/sv-benchmarks/c/eca-rers2012/Problem03_label14.c [2021-10-13 07:50:15,992 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/data/85452bafd/eeaaf269f9804114aca82e815a154e3c/FLAG10a76c1e5 [2021-10-13 07:50:16,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/data/85452bafd/eeaaf269f9804114aca82e815a154e3c [2021-10-13 07:50:16,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:50:16,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:50:16,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:50:16,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:50:16,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:50:16,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:50:16" (1/1) ... [2021-10-13 07:50:16,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4387fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:16, skipping insertion in model container [2021-10-13 07:50:16,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:50:16" (1/1) ... [2021-10-13 07:50:16,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:50:16,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:50:16,916 WARN L228 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_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/sv-benchmarks/c/eca-rers2012/Problem03_label14.c[57171,57184] [2021-10-13 07:50:16,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:50:16,955 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:50:17,205 WARN L228 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_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/sv-benchmarks/c/eca-rers2012/Problem03_label14.c[57171,57184] [2021-10-13 07:50:17,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:50:17,238 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:50:17,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17 WrapperNode [2021-10-13 07:50:17,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:50:17,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:50:17,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:50:17,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:50:17,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:50:17,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:50:17,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:50:17,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:50:17,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:50:17,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:50:17,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:50:17,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:50:17,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (1/1) ... [2021-10-13 07:50:17,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:50:17,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:50:17,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:50:17,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:50:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:50:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:50:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:50:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:50:20,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:50:20,460 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:50:20,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:50:20 BoogieIcfgContainer [2021-10-13 07:50:20,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:50:20,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:50:20,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:50:20,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:50:20,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:50:16" (1/3) ... [2021-10-13 07:50:20,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b7f2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:50:20, skipping insertion in model container [2021-10-13 07:50:20,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:50:17" (2/3) ... [2021-10-13 07:50:20,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b7f2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:50:20, skipping insertion in model container [2021-10-13 07:50:20,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:50:20" (3/3) ... [2021-10-13 07:50:20,475 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label14.c [2021-10-13 07:50:20,483 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:50:20,483 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:50:20,541 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:50:20,549 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 07:50:20,549 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:50:20,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 146 states have (on average 1.9726027397260273) internal successors, (288), 147 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:20,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-13 07:50:20,591 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:20,592 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:20,592 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:20,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:20,597 INFO L82 PathProgramCache]: Analyzing trace with hash 209343671, now seen corresponding path program 1 times [2021-10-13 07:50:20,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:20,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467117503] [2021-10-13 07:50:20,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:20,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:21,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:21,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:21,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467117503] [2021-10-13 07:50:21,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467117503] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:21,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:21,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:50:21,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052270974] [2021-10-13 07:50:21,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:21,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:21,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:21,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:21,329 INFO L87 Difference]: Start difference. First operand has 148 states, 146 states have (on average 1.9726027397260273) internal successors, (288), 147 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:22,189 INFO L93 Difference]: Finished difference Result 440 states and 860 transitions. [2021-10-13 07:50:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:22,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-10-13 07:50:22,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:22,204 INFO L225 Difference]: With dead ends: 440 [2021-10-13 07:50:22,205 INFO L226 Difference]: Without dead ends: 289 [2021-10-13 07:50:22,208 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:22,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-10-13 07:50:22,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-10-13 07:50:22,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.8055555555555556) internal successors, (520), 288 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:22,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 520 transitions. [2021-10-13 07:50:22,270 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 520 transitions. Word has length 143 [2021-10-13 07:50:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:22,271 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 520 transitions. [2021-10-13 07:50:22,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 520 transitions. [2021-10-13 07:50:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-13 07:50:22,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:22,275 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:22,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:50:22,276 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:22,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:22,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1322619553, now seen corresponding path program 1 times [2021-10-13 07:50:22,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:22,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774818275] [2021-10-13 07:50:22,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:22,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:22,391 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:22,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774818275] [2021-10-13 07:50:22,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774818275] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:22,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:22,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:50:22,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854434734] [2021-10-13 07:50:22,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:22,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:22,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:22,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:22,395 INFO L87 Difference]: Start difference. First operand 289 states and 520 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:23,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:23,200 INFO L93 Difference]: Finished difference Result 865 states and 1558 transitions. [2021-10-13 07:50:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:23,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-10-13 07:50:23,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:23,210 INFO L225 Difference]: With dead ends: 865 [2021-10-13 07:50:23,210 INFO L226 Difference]: Without dead ends: 577 [2021-10-13 07:50:23,215 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-10-13 07:50:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 575. [2021-10-13 07:50:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 1.6742160278745644) internal successors, (961), 574 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:23,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 961 transitions. [2021-10-13 07:50:23,268 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 961 transitions. Word has length 148 [2021-10-13 07:50:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:23,270 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 961 transitions. [2021-10-13 07:50:23,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 961 transitions. [2021-10-13 07:50:23,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-10-13 07:50:23,284 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:23,285 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:23,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:50:23,286 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:23,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:23,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1094383958, now seen corresponding path program 1 times [2021-10-13 07:50:23,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:23,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819235422] [2021-10-13 07:50:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:23,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:23,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:23,361 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:23,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819235422] [2021-10-13 07:50:23,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819235422] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:23,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:23,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:50:23,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276891259] [2021-10-13 07:50:23,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:23,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:23,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:23,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:23,365 INFO L87 Difference]: Start difference. First operand 575 states and 961 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:24,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:24,077 INFO L93 Difference]: Finished difference Result 1721 states and 2880 transitions. [2021-10-13 07:50:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:24,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2021-10-13 07:50:24,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:24,085 INFO L225 Difference]: With dead ends: 1721 [2021-10-13 07:50:24,085 INFO L226 Difference]: Without dead ends: 1147 [2021-10-13 07:50:24,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-10-13 07:50:24,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2021-10-13 07:50:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1146 states have (on average 1.6265270506108203) internal successors, (1864), 1146 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:24,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1864 transitions. [2021-10-13 07:50:24,160 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1864 transitions. Word has length 151 [2021-10-13 07:50:24,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:24,161 INFO L470 AbstractCegarLoop]: Abstraction has 1147 states and 1864 transitions. [2021-10-13 07:50:24,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:24,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1864 transitions. [2021-10-13 07:50:24,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-10-13 07:50:24,166 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:24,166 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:24,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:50:24,166 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:24,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:24,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1051103491, now seen corresponding path program 1 times [2021-10-13 07:50:24,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:24,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700263181] [2021-10-13 07:50:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:24,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:24,242 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:24,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700263181] [2021-10-13 07:50:24,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700263181] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:24,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:24,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:24,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551619006] [2021-10-13 07:50:24,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:24,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:24,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:24,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:24,245 INFO L87 Difference]: Start difference. First operand 1147 states and 1864 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:24,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:24,998 INFO L93 Difference]: Finished difference Result 3437 states and 5589 transitions. [2021-10-13 07:50:24,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:24,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2021-10-13 07:50:24,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:25,012 INFO L225 Difference]: With dead ends: 3437 [2021-10-13 07:50:25,013 INFO L226 Difference]: Without dead ends: 2291 [2021-10-13 07:50:25,016 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:25,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2021-10-13 07:50:25,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2021-10-13 07:50:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 2290 states have (on average 1.4026200873362444) internal successors, (3212), 2290 states have internal predecessors, (3212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:25,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3212 transitions. [2021-10-13 07:50:25,083 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3212 transitions. Word has length 163 [2021-10-13 07:50:25,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:25,084 INFO L470 AbstractCegarLoop]: Abstraction has 2291 states and 3212 transitions. [2021-10-13 07:50:25,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:25,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3212 transitions. [2021-10-13 07:50:25,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-10-13 07:50:25,092 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:25,093 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:25,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:50:25,094 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:25,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:25,095 INFO L82 PathProgramCache]: Analyzing trace with hash -520475287, now seen corresponding path program 1 times [2021-10-13 07:50:25,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:25,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019201158] [2021-10-13 07:50:25,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:25,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:25,199 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:25,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019201158] [2021-10-13 07:50:25,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019201158] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:25,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:25,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:50:25,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253377782] [2021-10-13 07:50:25,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:25,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:25,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:25,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:25,203 INFO L87 Difference]: Start difference. First operand 2291 states and 3212 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:25,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:25,997 INFO L93 Difference]: Finished difference Result 5725 states and 7996 transitions. [2021-10-13 07:50:25,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:25,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-10-13 07:50:25,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:26,017 INFO L225 Difference]: With dead ends: 5725 [2021-10-13 07:50:26,018 INFO L226 Difference]: Without dead ends: 3435 [2021-10-13 07:50:26,021 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:26,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2021-10-13 07:50:26,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3435. [2021-10-13 07:50:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3435 states, 3434 states have (on average 1.340128130460105) internal successors, (4602), 3434 states have internal predecessors, (4602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4602 transitions. [2021-10-13 07:50:26,112 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4602 transitions. Word has length 171 [2021-10-13 07:50:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:26,113 INFO L470 AbstractCegarLoop]: Abstraction has 3435 states and 4602 transitions. [2021-10-13 07:50:26,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:26,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4602 transitions. [2021-10-13 07:50:26,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-10-13 07:50:26,122 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:26,122 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:26,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:50:26,123 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:26,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:26,124 INFO L82 PathProgramCache]: Analyzing trace with hash 441259069, now seen corresponding path program 1 times [2021-10-13 07:50:26,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:26,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471888103] [2021-10-13 07:50:26,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:26,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:50:26,199 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:26,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471888103] [2021-10-13 07:50:26,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471888103] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:26,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:26,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:50:26,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829506174] [2021-10-13 07:50:26,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:26,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:26,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:26,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:26,209 INFO L87 Difference]: Start difference. First operand 3435 states and 4602 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:26,611 INFO L93 Difference]: Finished difference Result 6869 states and 9203 transitions. [2021-10-13 07:50:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:26,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2021-10-13 07:50:26,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:26,632 INFO L225 Difference]: With dead ends: 6869 [2021-10-13 07:50:26,632 INFO L226 Difference]: Without dead ends: 3435 [2021-10-13 07:50:26,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2021-10-13 07:50:26,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3435. [2021-10-13 07:50:26,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3435 states, 3434 states have (on average 1.3098427489807805) internal successors, (4498), 3434 states have internal predecessors, (4498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:26,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4498 transitions. [2021-10-13 07:50:26,769 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4498 transitions. Word has length 176 [2021-10-13 07:50:26,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:26,769 INFO L470 AbstractCegarLoop]: Abstraction has 3435 states and 4498 transitions. [2021-10-13 07:50:26,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4498 transitions. [2021-10-13 07:50:26,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-10-13 07:50:26,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:26,779 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:26,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:50:26,779 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:26,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:26,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1441034555, now seen corresponding path program 1 times [2021-10-13 07:50:26,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:26,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44873175] [2021-10-13 07:50:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:26,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:27,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:27,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44873175] [2021-10-13 07:50:27,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44873175] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:50:27,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966117476] [2021-10-13 07:50:27,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:27,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:50:27,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:50:27,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:50:27,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:50:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:27,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:50:27,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:50:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:27,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:50:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:28,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966117476] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:28,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:50:28,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2021-10-13 07:50:28,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104523863] [2021-10-13 07:50:28,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:28,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:28,380 INFO L87 Difference]: Start difference. First operand 3435 states and 4498 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:29,219 INFO L93 Difference]: Finished difference Result 8728 states and 11507 transitions. [2021-10-13 07:50:29,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-10-13 07:50:29,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:29,253 INFO L225 Difference]: With dead ends: 8728 [2021-10-13 07:50:29,253 INFO L226 Difference]: Without dead ends: 5294 [2021-10-13 07:50:29,258 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.8ms TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:29,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-10-13 07:50:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5294. [2021-10-13 07:50:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5293 states have (on average 1.303608539580578) internal successors, (6900), 5293 states have internal predecessors, (6900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 6900 transitions. [2021-10-13 07:50:29,414 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 6900 transitions. Word has length 181 [2021-10-13 07:50:29,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:29,415 INFO L470 AbstractCegarLoop]: Abstraction has 5294 states and 6900 transitions. [2021-10-13 07:50:29,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 6900 transitions. [2021-10-13 07:50:29,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-10-13 07:50:29,426 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:29,427 INFO L512 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:29,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:50:29,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:50:29,651 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:29,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:29,651 INFO L82 PathProgramCache]: Analyzing trace with hash -2067557920, now seen corresponding path program 1 times [2021-10-13 07:50:29,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:29,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137672903] [2021-10-13 07:50:29,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:29,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:29,736 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:29,737 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:29,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137672903] [2021-10-13 07:50:29,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137672903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:29,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:29,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:50:29,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880143956] [2021-10-13 07:50:29,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:29,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:29,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:29,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:29,740 INFO L87 Difference]: Start difference. First operand 5294 states and 6900 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:30,471 INFO L93 Difference]: Finished difference Result 12446 states and 16213 transitions. [2021-10-13 07:50:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:30,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2021-10-13 07:50:30,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:30,508 INFO L225 Difference]: With dead ends: 12446 [2021-10-13 07:50:30,508 INFO L226 Difference]: Without dead ends: 7153 [2021-10-13 07:50:30,515 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:30,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7153 states. [2021-10-13 07:50:30,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7153 to 7153. [2021-10-13 07:50:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7153 states, 7152 states have (on average 1.2918064876957494) internal successors, (9239), 7152 states have internal predecessors, (9239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7153 states to 7153 states and 9239 transitions. [2021-10-13 07:50:30,725 INFO L78 Accepts]: Start accepts. Automaton has 7153 states and 9239 transitions. Word has length 184 [2021-10-13 07:50:30,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:30,725 INFO L470 AbstractCegarLoop]: Abstraction has 7153 states and 9239 transitions. [2021-10-13 07:50:30,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:30,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7153 states and 9239 transitions. [2021-10-13 07:50:30,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-10-13 07:50:30,740 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:30,742 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:30,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 07:50:30,744 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:30,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:30,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1304633093, now seen corresponding path program 1 times [2021-10-13 07:50:30,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:30,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299655646] [2021-10-13 07:50:30,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:30,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:30,871 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:30,872 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:30,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299655646] [2021-10-13 07:50:30,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299655646] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:50:30,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492679856] [2021-10-13 07:50:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:30,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:50:30,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:50:30,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:50:30,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 07:50:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:31,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:50:31,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:50:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:31,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:50:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:32,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492679856] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:32,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:50:32,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 5 [2021-10-13 07:50:32,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097149339] [2021-10-13 07:50:32,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:32,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:32,062 INFO L87 Difference]: Start difference. First operand 7153 states and 9239 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:32,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:32,754 INFO L93 Difference]: Finished difference Result 15735 states and 20724 transitions. [2021-10-13 07:50:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:32,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-10-13 07:50:32,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:32,800 INFO L225 Difference]: With dead ends: 15735 [2021-10-13 07:50:32,800 INFO L226 Difference]: Without dead ends: 8869 [2021-10-13 07:50:32,808 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:32,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8869 states. [2021-10-13 07:50:32,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8869 to 8869. [2021-10-13 07:50:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8868 states have (on average 1.3346865133062698) internal successors, (11836), 8868 states have internal predecessors, (11836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 11836 transitions. [2021-10-13 07:50:32,996 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 11836 transitions. Word has length 191 [2021-10-13 07:50:32,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:32,997 INFO L470 AbstractCegarLoop]: Abstraction has 8869 states and 11836 transitions. [2021-10-13 07:50:32,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:33,001 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 11836 transitions. [2021-10-13 07:50:33,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-10-13 07:50:33,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:33,019 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:50:33,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:50:33,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:50:33,238 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:33,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:33,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1816296061, now seen corresponding path program 1 times [2021-10-13 07:50:33,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:33,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218935878] [2021-10-13 07:50:33,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:33,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 94 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-13 07:50:33,344 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:33,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218935878] [2021-10-13 07:50:33,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218935878] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:50:33,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42978273] [2021-10-13 07:50:33,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:33,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:50:33,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:50:33,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:50:33,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 07:50:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:33,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:50:33,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:50:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:34,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:50:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:34,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42978273] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:34,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:50:34,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 5 [2021-10-13 07:50:34,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070155378] [2021-10-13 07:50:34,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:34,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:34,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:34,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:34,834 INFO L87 Difference]: Start difference. First operand 8869 states and 11836 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:35,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:35,550 INFO L93 Difference]: Finished difference Result 20311 states and 27549 transitions. [2021-10-13 07:50:35,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:35,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 252 [2021-10-13 07:50:35,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:35,623 INFO L225 Difference]: With dead ends: 20311 [2021-10-13 07:50:35,624 INFO L226 Difference]: Without dead ends: 11586 [2021-10-13 07:50:35,632 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 501 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:50:35,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11586 states. [2021-10-13 07:50:35,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11586 to 11586. [2021-10-13 07:50:35,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11586 states, 11585 states have (on average 1.2844195079844627) internal successors, (14880), 11585 states have internal predecessors, (14880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 14880 transitions. [2021-10-13 07:50:35,879 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 14880 transitions. Word has length 252 [2021-10-13 07:50:35,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:35,880 INFO L470 AbstractCegarLoop]: Abstraction has 11586 states and 14880 transitions. [2021-10-13 07:50:35,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 14880 transitions. [2021-10-13 07:50:35,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-10-13 07:50:35,902 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:35,903 INFO L512 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, 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, 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, 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, 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] [2021-10-13 07:50:35,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:50:36,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-13 07:50:36,123 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:36,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:36,123 INFO L82 PathProgramCache]: Analyzing trace with hash -945840320, now seen corresponding path program 1 times [2021-10-13 07:50:36,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:36,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095267558] [2021-10-13 07:50:36,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:36,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:36,287 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:36,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095267558] [2021-10-13 07:50:36,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095267558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:36,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:50:36,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:50:36,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468223713] [2021-10-13 07:50:36,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:50:36,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:36,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:50:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:36,290 INFO L87 Difference]: Start difference. First operand 11586 states and 14880 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:37,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:37,030 INFO L93 Difference]: Finished difference Result 26460 states and 34008 transitions. [2021-10-13 07:50:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:50:37,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2021-10-13 07:50:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:37,060 INFO L225 Difference]: With dead ends: 26460 [2021-10-13 07:50:37,061 INFO L226 Difference]: Without dead ends: 15018 [2021-10-13 07:50:37,073 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:50:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15018 states. [2021-10-13 07:50:37,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15018 to 14303. [2021-10-13 07:50:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14303 states, 14302 states have (on average 1.2742273807859041) internal successors, (18224), 14302 states have internal predecessors, (18224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14303 states to 14303 states and 18224 transitions. [2021-10-13 07:50:37,421 INFO L78 Accepts]: Start accepts. Automaton has 14303 states and 18224 transitions. Word has length 267 [2021-10-13 07:50:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:37,422 INFO L470 AbstractCegarLoop]: Abstraction has 14303 states and 18224 transitions. [2021-10-13 07:50:37,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 2 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 14303 states and 18224 transitions. [2021-10-13 07:50:37,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-10-13 07:50:37,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:50:37,444 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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, 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, 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] [2021-10-13 07:50:37,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 07:50:37,444 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:50:37,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:50:37,445 INFO L82 PathProgramCache]: Analyzing trace with hash 2073355333, now seen corresponding path program 1 times [2021-10-13 07:50:37,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:50:37,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614311541] [2021-10-13 07:50:37,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:37,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:50:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:50:37,727 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:50:37,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614311541] [2021-10-13 07:50:37,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614311541] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:50:37,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033987924] [2021-10-13 07:50:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:50:37,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:50:37,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:50:37,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:50:37,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 07:50:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:50:38,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:50:38,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:50:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:40,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:50:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:50:41,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033987924] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:50:41,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:50:41,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2021-10-13 07:50:41,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446195356] [2021-10-13 07:50:41,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:50:41,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:50:41,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:50:41,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:41,652 INFO L87 Difference]: Start difference. First operand 14303 states and 18224 transitions. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:42,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:50:42,915 INFO L93 Difference]: Finished difference Result 33608 states and 42832 transitions. [2021-10-13 07:50:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:50:42,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2021-10-13 07:50:42,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:50:42,917 INFO L225 Difference]: With dead ends: 33608 [2021-10-13 07:50:42,917 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:50:42,936 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.9ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:50:42,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:50:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:50:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:50:42,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 274 [2021-10-13 07:50:42,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:50:42,938 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:50:42,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:50:42,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:50:42,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:50:42,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:50:42,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:50:43,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:50:43,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:50:43,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:50:43,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:50:43,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:50:43,490 INFO L857 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-10-13 07:50:43,490 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,491 INFO L857 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,492 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,493 INFO L857 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,494 INFO L857 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,495 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,496 INFO L857 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1555) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,497 INFO L857 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,498 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,498 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,498 INFO L857 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,498 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,498 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,498 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,498 INFO L857 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,498 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,500 INFO L853 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse1 (= ~a27~0 1)) (.cse0 (= ~a5~0 1))) (or (and .cse0 (= ~a6~0 0) .cse1) (and .cse0 (<= 1 ~a3~0)) (and .cse0 .cse1 (= ~a3~0 0)) (and (= ~a26~0 0) .cse0 (= ~a12~0 1)) (and .cse0 (<= ~a11~0 0) .cse1) (and (= ~a26~0 1) .cse0))) [2021-10-13 07:50:43,500 INFO L857 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,500 INFO L857 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,501 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,501 INFO L857 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,501 INFO L860 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-10-13 07:50:43,501 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,501 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,501 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,501 INFO L857 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,502 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,502 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,502 INFO L857 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,502 INFO L857 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,502 INFO L857 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,502 INFO L857 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,502 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,502 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,503 INFO L857 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,503 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,503 INFO L853 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse1 (= ~a27~0 1)) (.cse0 (= ~a5~0 1))) (or (and .cse0 (= ~a6~0 0) .cse1) (and .cse0 (<= 1 ~a3~0)) (and .cse0 .cse1 (= ~a3~0 0)) (and (= ~a26~0 0) .cse0 (= ~a12~0 1)) (and .cse0 (<= ~a11~0 0) .cse1) (and (= ~a26~0 1) .cse0))) [2021-10-13 07:50:43,503 INFO L857 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,503 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,503 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,504 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,504 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,504 INFO L857 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,504 INFO L857 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,504 INFO L857 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,504 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:50:43,504 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,505 INFO L857 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,505 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,505 INFO L857 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-10-13 07:50:43,505 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,505 INFO L857 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,505 INFO L857 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,505 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,506 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,506 INFO L857 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,506 INFO L857 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,506 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,506 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,506 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,506 INFO L857 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,507 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,507 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,507 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,507 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,507 INFO L857 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,507 INFO L857 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,507 INFO L857 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,508 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,508 INFO L857 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,508 INFO L857 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,508 INFO L857 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,508 INFO L857 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 07:50:43,508 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,508 INFO L857 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,509 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,509 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,509 INFO L857 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,509 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-10-13 07:50:43,509 INFO L857 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-10-13 07:50:43,513 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:50:43,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:50:43 BoogieIcfgContainer [2021-10-13 07:50:43,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:50:43,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:50:43,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:50:43,528 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:50:43,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:50:20" (3/4) ... [2021-10-13 07:50:43,531 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:50:43,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 123 nodes and edges [2021-10-13 07:50:43,563 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-13 07:50:43,567 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 07:50:43,571 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 07:50:43,808 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:50:43,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:50:43,811 INFO L168 Benchmark]: Toolchain (without parser) took 27698.57 ms. Allocated memory was 88.1 MB in the beginning and 593.5 MB in the end (delta: 505.4 MB). Free memory was 63.7 MB in the beginning and 200.4 MB in the end (delta: -136.7 MB). Peak memory consumption was 370.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:43,811 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 67.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:50:43,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1127.21 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 63.4 MB in the beginning and 72.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:43,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 156.31 ms. Allocated memory is still 117.4 MB. Free memory was 72.4 MB in the beginning and 57.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:43,813 INFO L168 Benchmark]: Boogie Preprocessor took 181.59 ms. Allocated memory is still 117.4 MB. Free memory was 57.3 MB in the beginning and 74.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:43,813 INFO L168 Benchmark]: RCFGBuilder took 2884.45 ms. Allocated memory was 117.4 MB in the beginning and 203.4 MB in the end (delta: 86.0 MB). Free memory was 74.8 MB in the beginning and 130.3 MB in the end (delta: -55.6 MB). Peak memory consumption was 83.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:43,813 INFO L168 Benchmark]: TraceAbstraction took 23060.12 ms. Allocated memory was 203.4 MB in the beginning and 593.5 MB in the end (delta: 390.1 MB). Free memory was 130.3 MB in the beginning and 237.5 MB in the end (delta: -107.2 MB). Peak memory consumption was 283.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:43,814 INFO L168 Benchmark]: Witness Printer took 280.53 ms. Allocated memory is still 593.5 MB. Free memory was 237.5 MB in the beginning and 200.4 MB in the end (delta: 37.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:50:43,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 67.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1127.21 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 63.4 MB in the beginning and 72.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 156.31 ms. Allocated memory is still 117.4 MB. Free memory was 72.4 MB in the beginning and 57.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 181.59 ms. Allocated memory is still 117.4 MB. Free memory was 57.3 MB in the beginning and 74.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2884.45 ms. Allocated memory was 117.4 MB in the beginning and 203.4 MB in the end (delta: 86.0 MB). Free memory was 74.8 MB in the beginning and 130.3 MB in the end (delta: -55.6 MB). Peak memory consumption was 83.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 23060.12 ms. Allocated memory was 203.4 MB in the beginning and 593.5 MB in the end (delta: 390.1 MB). Free memory was 130.3 MB in the beginning and 237.5 MB in the end (delta: -107.2 MB). Peak memory consumption was 283.9 MB. Max. memory is 16.1 GB. * Witness Printer took 280.53 ms. Allocated memory is still 593.5 MB. Free memory was 237.5 MB in the beginning and 200.4 MB in the end (delta: 37.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1555]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 148 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22973.3ms, OverallIterations: 12, TraceHistogramMax: 4, EmptinessCheckTime: 157.1ms, AutomataDifference: 9738.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 341.7ms, InitialAbstractionConstructionTime: 15.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1430 SDtfs, 1205 SDslu, 58 SDs, 0 SdLazy, 5708 SolverSat, 1367 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6877.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1819 GetRequests, 1795 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 121.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14303occurred in iteration=11, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1612.1ms AutomataMinimizationTime, 12 MinimizatonAttempts, 717 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 227 NumberOfFragments, 111 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4990 FormulaSimplificationTreeSizeReduction, 140.4ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 242 FormulaSimplificationTreeSizeReductionInter, 194.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 348.2ms SsaConstructionTime, 905.4ms SatisfiabilityAnalysisTime, 7751.5ms InterpolantComputationTime, 3199 NumberOfCodeBlocks, 3199 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4077 ConstructedInterpolants, 0 QuantifiedInterpolants, 12935 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1870 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 1462/1486 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((a5 == 1 && a6 == 0) && a27 == 1) || (a5 == 1 && 1 <= a3)) || ((a5 == 1 && a27 == 1) && a3 == 0)) || ((a26 == 0 && a5 == 1) && a12 == 1)) || ((a5 == 1 && a11 <= 0) && a27 == 1)) || (a26 == 1 && a5 == 1) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((a5 == 1 && a6 == 0) && a27 == 1) || (a5 == 1 && 1 <= a3)) || ((a5 == 1 && a27 == 1) && a3 == 0)) || ((a26 == 0 && a5 == 1) && a12 == 1)) || ((a5 == 1 && a11 <= 0) && a27 == 1)) || (a26 == 1 && a5 == 1) RESULT: Ultimate proved your program to be correct! [2021-10-13 07:50:43,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67529d4-1e0b-4d3e-a74f-fb7b8a50a4bc/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...