./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label42.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba --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 6a1d98a51bcc97ee19e0458934f0b894e85cf8f8042e38117bf0e9bc0c63c9ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:10:12,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:10:12,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:10:12,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:10:12,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:10:12,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:10:12,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:10:12,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:10:12,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:10:12,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:10:12,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:10:12,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:10:12,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:10:12,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:10:12,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:10:12,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:10:12,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:10:12,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:10:12,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:10:12,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:10:12,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:10:12,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:10:12,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:10:12,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:10:12,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:10:12,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:10:12,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:10:12,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:10:12,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:10:12,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:10:12,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:10:12,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:10:12,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:10:12,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:10:12,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:10:12,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:10:12,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:10:12,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:10:12,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:10:12,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:10:12,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:10:12,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:10:12,807 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:10:12,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:10:12,808 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:10:12,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:10:12,809 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:10:12,809 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:10:12,810 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:10:12,810 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:10:12,810 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:10:12,810 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:10:12,811 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:10:12,812 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:10:12,812 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:10:12,812 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:10:12,812 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:10:12,813 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:10:12,813 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:10:12,813 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:10:12,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:10:12,814 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:10:12,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:10:12,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:10:12,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:10:12,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:10:12,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:10:12,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:10:12,815 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:10:12,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:10:12,816 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:10:12,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:10:12,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:10:12,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:10:12,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:10:12,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:10:12,818 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:10:12,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:10:12,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:10:12,818 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:10:12,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:10:12,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:10:12,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:10:12,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a1d98a51bcc97ee19e0458934f0b894e85cf8f8042e38117bf0e9bc0c63c9ce [2022-11-22 01:10:13,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:10:13,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:10:13,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:10:13,185 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:10:13,185 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:10:13,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/eca-rers2012/Problem02_label42.c [2022-11-22 01:10:16,212 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:10:16,501 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:10:16,505 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/sv-benchmarks/c/eca-rers2012/Problem02_label42.c [2022-11-22 01:10:16,537 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/data/f0473e579/9f524707849e40f5ad7d3147af5bd83b/FLAG187ac6563 [2022-11-22 01:10:16,555 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/data/f0473e579/9f524707849e40f5ad7d3147af5bd83b [2022-11-22 01:10:16,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:10:16,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:10:16,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:10:16,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:10:16,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:10:16,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:10:16" (1/1) ... [2022-11-22 01:10:16,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d04b906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:16, skipping insertion in model container [2022-11-22 01:10:16,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:10:16" (1/1) ... [2022-11-22 01:10:16,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:10:16,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:10:17,032 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/sv-benchmarks/c/eca-rers2012/Problem02_label42.c[16787,16800] [2022-11-22 01:10:17,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:10:17,115 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:10:17,220 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/sv-benchmarks/c/eca-rers2012/Problem02_label42.c[16787,16800] [2022-11-22 01:10:17,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:10:17,247 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:10:17,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17 WrapperNode [2022-11-22 01:10:17,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:10:17,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:10:17,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:10:17,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:10:17,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,334 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-11-22 01:10:17,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:10:17,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:10:17,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:10:17,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:10:17,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,451 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:10:17,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:10:17,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:10:17,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:10:17,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (1/1) ... [2022-11-22 01:10:17,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:10:17,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:17,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:10:17,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:10:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:10:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:10:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:10:17,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:10:17,665 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:10:17,667 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:10:18,986 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:10:19,286 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:10:19,286 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:10:19,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:19 BoogieIcfgContainer [2022-11-22 01:10:19,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:10:19,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:10:19,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:10:19,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:10:19,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:10:16" (1/3) ... [2022-11-22 01:10:19,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e150c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:10:19, skipping insertion in model container [2022-11-22 01:10:19,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:17" (2/3) ... [2022-11-22 01:10:19,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e150c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:10:19, skipping insertion in model container [2022-11-22 01:10:19,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:19" (3/3) ... [2022-11-22 01:10:19,300 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2022-11-22 01:10:19,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:10:19,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:10:19,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:10:19,385 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27128373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:10:19,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:10:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:19,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:10:19,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:19,402 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:10:19,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:19,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:19,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1243322291, now seen corresponding path program 1 times [2022-11-22 01:10:19,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:19,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063116683] [2022-11-22 01:10:19,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:19,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:20,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:20,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063116683] [2022-11-22 01:10:20,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063116683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:20,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:20,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:10:20,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761328370] [2022-11-22 01:10:20,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:20,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:20,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:20,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:20,087 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 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 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:20,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:20,637 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2022-11-22 01:10:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:20,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-11-22 01:10:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:20,655 INFO L225 Difference]: With dead ends: 251 [2022-11-22 01:10:20,655 INFO L226 Difference]: Without dead ends: 163 [2022-11-22 01:10:20,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:20,662 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:20,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 65 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:10:20,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-22 01:10:20,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-22 01:10:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5617283950617284) internal successors, (253), 162 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:20,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 253 transitions. [2022-11-22 01:10:20,735 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 253 transitions. Word has length 80 [2022-11-22 01:10:20,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:20,737 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 253 transitions. [2022-11-22 01:10:20,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:20,738 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 253 transitions. [2022-11-22 01:10:20,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 01:10:20,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:20,744 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:10:20,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:10:20,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:20,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:20,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1692949640, now seen corresponding path program 1 times [2022-11-22 01:10:20,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:20,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373578507] [2022-11-22 01:10:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:20,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:20,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:20,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373578507] [2022-11-22 01:10:20,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373578507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:20,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:20,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:20,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029881211] [2022-11-22 01:10:20,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:20,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:20,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:20,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:20,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:20,961 INFO L87 Difference]: Start difference. First operand 163 states and 253 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:21,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:21,384 INFO L93 Difference]: Finished difference Result 405 states and 661 transitions. [2022-11-22 01:10:21,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:21,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-11-22 01:10:21,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:21,409 INFO L225 Difference]: With dead ends: 405 [2022-11-22 01:10:21,409 INFO L226 Difference]: Without dead ends: 243 [2022-11-22 01:10:21,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:21,411 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:21,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 130 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:10:21,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-22 01:10:21,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2022-11-22 01:10:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.4793388429752066) internal successors, (358), 242 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:21,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 358 transitions. [2022-11-22 01:10:21,423 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 358 transitions. Word has length 85 [2022-11-22 01:10:21,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:21,424 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 358 transitions. [2022-11-22 01:10:21,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 358 transitions. [2022-11-22 01:10:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-22 01:10:21,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:21,427 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:10:21,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:10:21,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:21,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:21,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1724802929, now seen corresponding path program 1 times [2022-11-22 01:10:21,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:21,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442186686] [2022-11-22 01:10:21,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:21,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:21,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442186686] [2022-11-22 01:10:21,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442186686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:21,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:21,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:10:21,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432237850] [2022-11-22 01:10:21,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:21,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:21,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:21,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:21,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:21,534 INFO L87 Difference]: Start difference. First operand 243 states and 358 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:21,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:21,929 INFO L93 Difference]: Finished difference Result 725 states and 1071 transitions. [2022-11-22 01:10:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:21,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-11-22 01:10:21,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:21,932 INFO L225 Difference]: With dead ends: 725 [2022-11-22 01:10:21,932 INFO L226 Difference]: Without dead ends: 483 [2022-11-22 01:10:21,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:21,934 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 106 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:21,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 28 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:10:21,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-11-22 01:10:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-11-22 01:10:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.3983402489626555) internal successors, (674), 482 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 674 transitions. [2022-11-22 01:10:21,961 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 674 transitions. Word has length 95 [2022-11-22 01:10:21,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:21,963 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 674 transitions. [2022-11-22 01:10:21,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 674 transitions. [2022-11-22 01:10:21,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-22 01:10:21,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:21,976 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:21,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:10:21,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:21,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:21,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1929399824, now seen corresponding path program 1 times [2022-11-22 01:10:21,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:21,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856217616] [2022-11-22 01:10:21,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:21,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:22,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:22,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856217616] [2022-11-22 01:10:22,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856217616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:22,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:22,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:22,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722406796] [2022-11-22 01:10:22,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:22,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:22,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:22,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:22,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:22,145 INFO L87 Difference]: Start difference. First operand 483 states and 674 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:22,513 INFO L93 Difference]: Finished difference Result 1445 states and 2019 transitions. [2022-11-22 01:10:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:22,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-11-22 01:10:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:22,518 INFO L225 Difference]: With dead ends: 1445 [2022-11-22 01:10:22,518 INFO L226 Difference]: Without dead ends: 963 [2022-11-22 01:10:22,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:22,520 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:22,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 168 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:10:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-22 01:10:22,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2022-11-22 01:10:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.3295218295218296) internal successors, (1279), 962 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:22,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1279 transitions. [2022-11-22 01:10:22,572 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1279 transitions. Word has length 110 [2022-11-22 01:10:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:22,575 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1279 transitions. [2022-11-22 01:10:22,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:22,575 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1279 transitions. [2022-11-22 01:10:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-22 01:10:22,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:22,579 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 01:10:22,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:10:22,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:22,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:22,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1523205090, now seen corresponding path program 1 times [2022-11-22 01:10:22,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:22,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585423638] [2022-11-22 01:10:22,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:22,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 01:10:22,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:22,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585423638] [2022-11-22 01:10:22,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585423638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:22,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:22,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:22,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928190867] [2022-11-22 01:10:22,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:22,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:22,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:22,769 INFO L87 Difference]: Start difference. First operand 963 states and 1279 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:23,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:23,112 INFO L93 Difference]: Finished difference Result 2165 states and 2847 transitions. [2022-11-22 01:10:23,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:23,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 124 [2022-11-22 01:10:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:23,116 INFO L225 Difference]: With dead ends: 2165 [2022-11-22 01:10:23,117 INFO L226 Difference]: Without dead ends: 1043 [2022-11-22 01:10:23,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:23,123 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 76 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:23,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 23 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:10:23,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-11-22 01:10:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 963. [2022-11-22 01:10:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.20997920997921) internal successors, (1164), 962 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:23,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1164 transitions. [2022-11-22 01:10:23,155 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1164 transitions. Word has length 124 [2022-11-22 01:10:23,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:23,156 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1164 transitions. [2022-11-22 01:10:23,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:23,157 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1164 transitions. [2022-11-22 01:10:23,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-22 01:10:23,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:23,167 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:23,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:10:23,168 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:23,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash 187505512, now seen corresponding path program 1 times [2022-11-22 01:10:23,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:23,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110932085] [2022-11-22 01:10:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:23,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:23,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110932085] [2022-11-22 01:10:23,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110932085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:23,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:23,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:23,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113385912] [2022-11-22 01:10:23,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:23,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:23,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:23,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:23,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:23,389 INFO L87 Difference]: Start difference. First operand 963 states and 1164 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:23,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:23,764 INFO L93 Difference]: Finished difference Result 2245 states and 2780 transitions. [2022-11-22 01:10:23,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:23,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-11-22 01:10:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:23,771 INFO L225 Difference]: With dead ends: 2245 [2022-11-22 01:10:23,771 INFO L226 Difference]: Without dead ends: 1283 [2022-11-22 01:10:23,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:23,779 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:23,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 104 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:10:23,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-11-22 01:10:23,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2022-11-22 01:10:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1282 states have (on average 1.2113884555382215) internal successors, (1553), 1282 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1553 transitions. [2022-11-22 01:10:23,818 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1553 transitions. Word has length 127 [2022-11-22 01:10:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:23,819 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1553 transitions. [2022-11-22 01:10:23,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1553 transitions. [2022-11-22 01:10:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 01:10:23,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:23,824 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-22 01:10:23,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:10:23,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:23,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:23,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2144364916, now seen corresponding path program 1 times [2022-11-22 01:10:23,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:23,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193338987] [2022-11-22 01:10:23,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:23,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-22 01:10:23,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:23,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193338987] [2022-11-22 01:10:23,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193338987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:23,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:23,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:10:23,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267079784] [2022-11-22 01:10:23,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:23,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:23,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:23,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:23,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:23,992 INFO L87 Difference]: Start difference. First operand 1283 states and 1553 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:24,172 INFO L93 Difference]: Finished difference Result 2245 states and 2698 transitions. [2022-11-22 01:10:24,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:24,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 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 138 [2022-11-22 01:10:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:24,177 INFO L225 Difference]: With dead ends: 2245 [2022-11-22 01:10:24,177 INFO L226 Difference]: Without dead ends: 883 [2022-11-22 01:10:24,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:24,182 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 97 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:24,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 4 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:10:24,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-22 01:10:24,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2022-11-22 01:10:24,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.116780045351474) internal successors, (985), 882 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:24,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 985 transitions. [2022-11-22 01:10:24,200 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 985 transitions. Word has length 138 [2022-11-22 01:10:24,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:24,201 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 985 transitions. [2022-11-22 01:10:24,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 985 transitions. [2022-11-22 01:10:24,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-22 01:10:24,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:24,204 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:24,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:10:24,204 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:24,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:24,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1669219151, now seen corresponding path program 1 times [2022-11-22 01:10:24,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:24,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279894665] [2022-11-22 01:10:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:24,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-22 01:10:24,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:24,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279894665] [2022-11-22 01:10:24,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279894665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:24,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:24,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057425717] [2022-11-22 01:10:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:24,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:24,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:24,389 INFO L87 Difference]: Start difference. First operand 883 states and 985 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:24,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:24,667 INFO L93 Difference]: Finished difference Result 1765 states and 1972 transitions. [2022-11-22 01:10:24,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:24,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 170 [2022-11-22 01:10:24,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:24,670 INFO L225 Difference]: With dead ends: 1765 [2022-11-22 01:10:24,671 INFO L226 Difference]: Without dead ends: 723 [2022-11-22 01:10:24,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:24,673 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 33 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:24,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 116 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:10:24,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-11-22 01:10:24,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2022-11-22 01:10:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.0941828254847645) internal successors, (790), 722 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 790 transitions. [2022-11-22 01:10:24,688 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 790 transitions. Word has length 170 [2022-11-22 01:10:24,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:24,689 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 790 transitions. [2022-11-22 01:10:24,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:24,689 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 790 transitions. [2022-11-22 01:10:24,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-22 01:10:24,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:24,693 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:24,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:10:24,693 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:24,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:24,694 INFO L85 PathProgramCache]: Analyzing trace with hash 158811540, now seen corresponding path program 1 times [2022-11-22 01:10:24,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:24,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782112293] [2022-11-22 01:10:24,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:24,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 88 proven. 106 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 01:10:24,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:24,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782112293] [2022-11-22 01:10:24,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782112293] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:24,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510208538] [2022-11-22 01:10:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:24,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:24,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:24,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:25,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:10:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:25,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:10:25,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-11-22 01:10:25,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:10:25,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510208538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:25,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:10:25,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-22 01:10:25,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870645439] [2022-11-22 01:10:25,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:25,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:25,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:25,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:25,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:10:25,640 INFO L87 Difference]: Start difference. First operand 723 states and 790 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:25,920 INFO L93 Difference]: Finished difference Result 1285 states and 1414 transitions. [2022-11-22 01:10:25,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:25,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 215 [2022-11-22 01:10:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:25,925 INFO L225 Difference]: With dead ends: 1285 [2022-11-22 01:10:25,925 INFO L226 Difference]: Without dead ends: 1283 [2022-11-22 01:10:25,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:10:25,931 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:25,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 9 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:10:25,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-11-22 01:10:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1203. [2022-11-22 01:10:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1202 states have (on average 1.1064891846921796) internal successors, (1330), 1202 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1330 transitions. [2022-11-22 01:10:25,960 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1330 transitions. Word has length 215 [2022-11-22 01:10:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:25,961 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 1330 transitions. [2022-11-22 01:10:25,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1330 transitions. [2022-11-22 01:10:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-22 01:10:25,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:25,966 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:25,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:26,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:26,174 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:26,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:26,175 INFO L85 PathProgramCache]: Analyzing trace with hash -959432368, now seen corresponding path program 1 times [2022-11-22 01:10:26,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:26,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737834751] [2022-11-22 01:10:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:26,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-22 01:10:26,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:26,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737834751] [2022-11-22 01:10:26,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737834751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:26,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:26,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:10:26,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340393866] [2022-11-22 01:10:26,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:26,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:10:26,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:26,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:10:26,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:26,383 INFO L87 Difference]: Start difference. First operand 1203 states and 1330 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:26,612 INFO L93 Difference]: Finished difference Result 2005 states and 2206 transitions. [2022-11-22 01:10:26,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:26,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 225 [2022-11-22 01:10:26,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:26,620 INFO L225 Difference]: With dead ends: 2005 [2022-11-22 01:10:26,620 INFO L226 Difference]: Without dead ends: 1123 [2022-11-22 01:10:26,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:10:26,622 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 67 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:26,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 109 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:10:26,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-11-22 01:10:26,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1123. [2022-11-22 01:10:26,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1122 states have (on average 1.085561497326203) internal successors, (1218), 1122 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:26,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1218 transitions. [2022-11-22 01:10:26,650 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1218 transitions. Word has length 225 [2022-11-22 01:10:26,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:26,650 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1218 transitions. [2022-11-22 01:10:26,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:26,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1218 transitions. [2022-11-22 01:10:26,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-22 01:10:26,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:26,656 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 01:10:26,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:10:26,656 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:26,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1386785719, now seen corresponding path program 1 times [2022-11-22 01:10:26,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:26,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43741237] [2022-11-22 01:10:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:26,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 01:10:27,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:27,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43741237] [2022-11-22 01:10:27,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43741237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:27,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:27,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:10:27,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765194705] [2022-11-22 01:10:27,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:27,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:10:27,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:27,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:10:27,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:10:27,055 INFO L87 Difference]: Start difference. First operand 1123 states and 1218 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:27,290 INFO L93 Difference]: Finished difference Result 2165 states and 2353 transitions. [2022-11-22 01:10:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:10:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 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 228 [2022-11-22 01:10:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:27,293 INFO L225 Difference]: With dead ends: 2165 [2022-11-22 01:10:27,293 INFO L226 Difference]: Without dead ends: 803 [2022-11-22 01:10:27,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:10:27,295 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 92 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:27,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 107 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:10:27,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-11-22 01:10:27,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2022-11-22 01:10:27,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 802 states have (on average 1.071072319201995) internal successors, (859), 802 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 859 transitions. [2022-11-22 01:10:27,311 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 859 transitions. Word has length 228 [2022-11-22 01:10:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:27,312 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 859 transitions. [2022-11-22 01:10:27,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 859 transitions. [2022-11-22 01:10:27,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-22 01:10:27,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:27,317 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:27,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:10:27,317 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:27,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:27,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1995293572, now seen corresponding path program 1 times [2022-11-22 01:10:27,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:27,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826880961] [2022-11-22 01:10:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:27,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 197 proven. 197 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-22 01:10:28,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:28,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826880961] [2022-11-22 01:10:28,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826880961] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:28,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622318693] [2022-11-22 01:10:28,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:28,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:28,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:28,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:28,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:10:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:28,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:10:28,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:30,393 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 311 proven. 114 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 01:10:30,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 242 proven. 183 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 01:10:31,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622318693] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:10:31,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [229239300] [2022-11-22 01:10:31,648 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-11-22 01:10:31,648 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:31,652 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:31,658 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:31,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:12:31,365 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 21 [2022-11-22 01:12:31,537 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 12392 conjuctions. This might take some time... [2022-11-22 01:12:32,335 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 640 conjuctions. [2022-11-22 01:12:32,360 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 21 [2022-11-22 01:12:32,530 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 12392 conjuctions. This might take some time... [2022-11-22 01:12:33,430 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 640 conjuctions. [2022-11-22 01:12:33,591 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 21 [2022-11-22 01:12:33,686 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 12392 conjuctions. This might take some time... [2022-11-22 01:12:34,480 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 640 conjuctions. [2022-11-22 01:12:35,140 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:12:55,741 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28616#(and (<= 26 ~z~0) (<= 5 ~e~0) (<= 25 ~y~0) (<= ~c~0 3) (<= ~e~0 5) (<= 6 ~f~0) (<= 0 |#NULL.base|) (= ~a17~0 8) (<= ~w~0 23) (<= ~u~0 21) (<= 1 |ULTIMATE.start_calculate_output_~input#1|) (<= ~x~0 24) (<= 3 ~c~0) (<= |#NULL.offset| 0) (<= ~v~0 22) (<= 1 |ULTIMATE.start_main_~input~0#1|) (= ~a11~0 1) (<= ~a~0 1) (<= 4 ~d~0) (<= 23 ~w~0) (<= ~z~0 26) (= ~a21~0 1) (<= 21 ~u~0) (<= 1 |ULTIMATE.start_calculate_output_#in~input#1|) (<= |#NULL.base| 0) (<= ~y~0 25) (not (= ~a25~0 1)) (= ~a19~0 1) (<= 1 ~a~0) (<= 22 ~v~0) (= ~a28~0 8) (<= 0 |#NULL.offset|) (<= ~d~0 4) (<= 0 |#StackHeapBarrier|) (<= ~f~0 6) (<= 0 ~a25~0) (<= 24 ~x~0))' at error location [2022-11-22 01:12:55,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:12:55,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:12:55,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-22 01:12:55,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075044660] [2022-11-22 01:12:55,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:12:55,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 01:12:55,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:55,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 01:12:55,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2022-11-22 01:12:55,745 INFO L87 Difference]: Start difference. First operand 803 states and 859 transitions. Second operand has 15 states, 15 states have (on average 36.0) internal successors, (540), 14 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:12:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:56,587 INFO L93 Difference]: Finished difference Result 1046 states and 1120 transitions. [2022-11-22 01:12:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:12:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 36.0) internal successors, (540), 14 states have internal predecessors, (540), 0 states have call successors, (0), 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 278 [2022-11-22 01:12:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:56,588 INFO L225 Difference]: With dead ends: 1046 [2022-11-22 01:12:56,588 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:12:56,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 594 SyntacticMatches, 223 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3649 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2022-11-22 01:12:56,590 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 497 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:56,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 38 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:12:56,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:12:56,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:12:56,591 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) [2022-11-22 01:12:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:12:56,591 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 278 [2022-11-22 01:12:56,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:56,591 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:12:56,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 36.0) internal successors, (540), 14 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:12:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:12:56,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:12:56,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:12:56,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:12:56,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 01:12:56,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:12:57,443 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-11-22 01:12:57,443 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-11-22 01:12:57,444 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-11-22 01:12:57,445 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-11-22 01:12:57,446 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 482) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-11-22 01:12:57,447 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-11-22 01:12:57,448 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-11-22 01:12:57,448 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-11-22 01:12:57,448 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-11-22 01:12:57,448 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-11-22 01:12:57,448 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-11-22 01:12:57,448 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-11-22 01:12:57,449 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 7)) (.cse0 (<= 9 ~a28~0)) (.cse5 (= ~a19~0 1)) (.cse6 (= ~a17~0 8)) (.cse7 (= ~a21~0 1)) (.cse9 (= ~a11~0 ~a19~0)) (.cse8 (= ~a11~0 0)) (.cse4 (<= 10 ~a28~0)) (.cse1 (= ~a25~0 1)) (.cse3 (<= ~a28~0 10)) (.cse12 (= ~a11~0 1)) (.cse11 (<= ~a17~0 8)) (.cse10 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse3 .cse5) (and .cse6 .cse0 .cse7 .cse8 .cse3 .cse5) (and .cse4 .cse2 .cse3) (and .cse6 .cse7 .cse9 .cse8 .cse10) (and .cse1 .cse11 .cse5) (and .cse0 .cse12 .cse11 .cse3 .cse5) (and .cse6 .cse7 .cse8 .cse5 .cse10) (and .cse6 (not (= |ULTIMATE.start_calculate_output_~input#1| 3)) .cse7 .cse9 .cse8 (= ~a28~0 8) (= ~a25~0 0)) (and .cse4 .cse1 .cse11 .cse3) (and .cse12 .cse11 .cse10))) [2022-11-22 01:12:57,449 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-11-22 01:12:57,449 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-11-22 01:12:57,449 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-11-22 01:12:57,449 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2022-11-22 01:12:57,449 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-11-22 01:12:57,450 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-11-22 01:12:57,450 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-11-22 01:12:57,450 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-11-22 01:12:57,450 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-11-22 01:12:57,450 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2022-11-22 01:12:57,450 INFO L899 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2022-11-22 01:12:57,450 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:12:57,451 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-11-22 01:12:57,451 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-11-22 01:12:57,451 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 7)) (.cse0 (<= 9 ~a28~0)) (.cse5 (= ~a19~0 1)) (.cse6 (= ~a17~0 8)) (.cse7 (= ~a21~0 1)) (.cse9 (= ~a11~0 ~a19~0)) (.cse8 (= ~a11~0 0)) (.cse4 (<= 10 ~a28~0)) (.cse1 (= ~a25~0 1)) (.cse3 (<= ~a28~0 10)) (.cse12 (= ~a11~0 1)) (.cse11 (<= ~a17~0 8)) (.cse10 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse3 .cse5) (and .cse6 .cse0 .cse7 .cse8 .cse3 .cse5) (and .cse4 .cse2 .cse3) (and .cse6 .cse7 .cse9 .cse8 .cse10) (and .cse1 .cse11 .cse5) (and .cse0 .cse12 .cse11 .cse3 .cse5) (and .cse6 .cse7 .cse8 .cse5 .cse10) (and .cse6 (not (= |ULTIMATE.start_calculate_output_~input#1| 3)) .cse7 .cse9 .cse8 (= ~a28~0 8) (= ~a25~0 0)) (and .cse4 .cse1 .cse11 .cse3) (and .cse12 .cse11 .cse10))) [2022-11-22 01:12:57,451 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-11-22 01:12:57,451 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-11-22 01:12:57,452 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-11-22 01:12:57,452 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-11-22 01:12:57,452 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-11-22 01:12:57,452 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-11-22 01:12:57,452 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-11-22 01:12:57,452 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-11-22 01:12:57,452 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-11-22 01:12:57,453 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-11-22 01:12:57,453 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-11-22 01:12:57,453 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-11-22 01:12:57,453 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-11-22 01:12:57,453 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-11-22 01:12:57,453 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-11-22 01:12:57,453 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-11-22 01:12:57,457 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:12:57,459 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:12:57,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:12:57 BoogieIcfgContainer [2022-11-22 01:12:57,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:12:57,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:12:57,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:12:57,479 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:12:57,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:19" (3/4) ... [2022-11-22 01:12:57,482 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:12:57,500 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2022-11-22 01:12:57,502 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-22 01:12:57,503 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-22 01:12:57,504 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 01:12:57,627 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:12:57,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:12:57,635 INFO L158 Benchmark]: Toolchain (without parser) took 161070.94ms. Allocated memory was 142.6MB in the beginning and 809.5MB in the end (delta: 666.9MB). Free memory was 99.2MB in the beginning and 730.6MB in the end (delta: -631.4MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2022-11-22 01:12:57,635 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:12:57,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.36ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 94.5MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 01:12:57,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.12ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 89.1MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:12:57,637 INFO L158 Benchmark]: Boogie Preprocessor took 114.62ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 84.7MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:12:57,637 INFO L158 Benchmark]: RCFGBuilder took 1827.15ms. Allocated memory was 142.6MB in the beginning and 222.3MB in the end (delta: 79.7MB). Free memory was 84.7MB in the beginning and 113.8MB in the end (delta: -29.1MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-11-22 01:12:57,638 INFO L158 Benchmark]: TraceAbstraction took 158185.24ms. Allocated memory was 222.3MB in the beginning and 809.5MB in the end (delta: 587.2MB). Free memory was 113.8MB in the beginning and 741.1MB in the end (delta: -627.3MB). Peak memory consumption was 420.2MB. Max. memory is 16.1GB. [2022-11-22 01:12:57,638 INFO L158 Benchmark]: Witness Printer took 155.93ms. Allocated memory is still 809.5MB. Free memory was 741.1MB in the beginning and 730.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:12:57,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.36ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 94.5MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.12ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 89.1MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.62ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 84.7MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1827.15ms. Allocated memory was 142.6MB in the beginning and 222.3MB in the end (delta: 79.7MB). Free memory was 84.7MB in the beginning and 113.8MB in the end (delta: -29.1MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * TraceAbstraction took 158185.24ms. Allocated memory was 222.3MB in the beginning and 809.5MB in the end (delta: 587.2MB). Free memory was 113.8MB in the beginning and 741.1MB in the end (delta: -627.3MB). Peak memory consumption was 420.2MB. Max. memory is 16.1GB. * Witness Printer took 155.93ms. Allocated memory is still 809.5MB. Free memory was 741.1MB in the beginning and 730.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 482]: 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, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 158.1s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1025 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1025 mSDsluCounter, 901 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 535 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3160 IncrementalHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 535 mSolverCounterUnsat, 816 mSDtfsCounter, 3160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1091 GetRequests, 826 SyntacticMatches, 223 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3649 ImplicationChecksByTransitivity, 20.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1283occurred in iteration=6, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 160 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 315 HoareAnnotationTreeSize, 3 FomulaSimplifications, 108 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 400 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 2368 NumberOfCodeBlocks, 2368 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2631 ConstructedInterpolants, 0 QuantifiedInterpolants, 10735 SizeOfPredicates, 11 NumberOfNonLiveVariables, 873 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 2111/2711 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: 616]: Loop Invariant Derived loop invariant: ((((((((((((9 <= a28 && a25 == 1) && a17 <= 7) && a28 <= 10) || ((10 <= a28 && a28 <= 10) && a19 == 1)) || (((((a17 == 8 && 9 <= a28) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1)) || ((10 <= a28 && a17 <= 7) && a28 <= 10)) || ((((a17 == 8 && a21 == 1) && a11 == a19) && a11 == 0) && a28 <= 7)) || ((a25 == 1 && a17 <= 8) && a19 == 1)) || ((((9 <= a28 && a11 == 1) && a17 <= 8) && a28 <= 10) && a19 == 1)) || ((((a17 == 8 && a21 == 1) && a11 == 0) && a19 == 1) && a28 <= 7)) || ((((((a17 == 8 && !(input == 3)) && a21 == 1) && a11 == a19) && a11 == 0) && a28 == 8) && a25 == 0)) || (((10 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10)) || ((a11 == 1 && a17 <= 8) && a28 <= 7) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((9 <= a28 && a25 == 1) && a17 <= 7) && a28 <= 10) || ((10 <= a28 && a28 <= 10) && a19 == 1)) || (((((a17 == 8 && 9 <= a28) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1)) || ((10 <= a28 && a17 <= 7) && a28 <= 10)) || ((((a17 == 8 && a21 == 1) && a11 == a19) && a11 == 0) && a28 <= 7)) || ((a25 == 1 && a17 <= 8) && a19 == 1)) || ((((9 <= a28 && a11 == 1) && a17 <= 8) && a28 <= 10) && a19 == 1)) || ((((a17 == 8 && a21 == 1) && a11 == 0) && a19 == 1) && a28 <= 7)) || ((((((a17 == 8 && !(input == 3)) && a21 == 1) && a11 == a19) && a11 == 0) && a28 == 8) && a25 == 0)) || (((10 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10)) || ((a11 == 1 && a17 <= 8) && a28 <= 7) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:12:57,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45f87cbe-86cd-46da-bd72-5850c3979d24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE