./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label34.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur --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 e946c16a3da25e9b3a559976cb9b3bd2f39939274bf6ba18ec27980a89869469 --- 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-38b53e6 [2022-11-26 00:24:33,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:24:33,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:24:33,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:24:33,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:24:33,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:24:33,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:24:33,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:24:33,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:24:33,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:24:33,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:24:33,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:24:33,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:24:33,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:24:33,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:24:33,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:24:33,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:24:33,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:24:33,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:24:33,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:24:33,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:24:33,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:24:33,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:24:33,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:24:33,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:24:33,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:24:33,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:24:33,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:24:33,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:24:33,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:24:33,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:24:33,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:24:33,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:24:33,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:24:33,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:24:33,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:24:33,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:24:33,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:24:33,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:24:33,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:24:33,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:24:33,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:24:33,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:24:33,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:24:33,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:24:33,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:24:33,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:24:33,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:24:33,675 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:24:33,675 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:24:33,675 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:24:33,676 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:24:33,677 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:24:33,677 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:24:33,677 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:24:33,678 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:24:33,678 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:24:33,678 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:24:33,678 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:24:33,679 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:24:33,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:24:33,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:24:33,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:24:33,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:24:33,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:24:33,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:24:33,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:24:33,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:24:33,683 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:24:33,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:24:33,683 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:24:33,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:24:33,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:24:33,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:24:33,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:33,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:24:33,685 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:24:33,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:24:33,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:24:33,686 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:24:33,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:24:33,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:24:33,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:24:33,688 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_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e946c16a3da25e9b3a559976cb9b3bd2f39939274bf6ba18ec27980a89869469 [2022-11-26 00:24:33,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:24:34,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:24:34,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:24:34,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:24:34,021 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:24:34,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/eca-rers2012/Problem02_label34.c [2022-11-26 00:24:37,090 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:24:37,476 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:24:37,476 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/sv-benchmarks/c/eca-rers2012/Problem02_label34.c [2022-11-26 00:24:37,489 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/data/db560634d/f6a30ddcaa434bbe856369e6129bf5b0/FLAG6bbf65418 [2022-11-26 00:24:37,507 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/data/db560634d/f6a30ddcaa434bbe856369e6129bf5b0 [2022-11-26 00:24:37,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:24:37,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:24:37,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:37,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:24:37,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:24:37,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:37" (1/1) ... [2022-11-26 00:24:37,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46274328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:37, skipping insertion in model container [2022-11-26 00:24:37,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:37" (1/1) ... [2022-11-26 00:24:37,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:24:37,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:24:38,000 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_ff150d85-3009-4c2e-add0-5821eabe3e3c/sv-benchmarks/c/eca-rers2012/Problem02_label34.c[16560,16573] [2022-11-26 00:24:38,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:38,064 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:24:38,147 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_ff150d85-3009-4c2e-add0-5821eabe3e3c/sv-benchmarks/c/eca-rers2012/Problem02_label34.c[16560,16573] [2022-11-26 00:24:38,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:38,187 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:24:38,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38 WrapperNode [2022-11-26 00:24:38,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:38,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:38,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:24:38,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:24:38,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,261 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-11-26 00:24:38,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:38,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:24:38,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:24:38,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:24:38,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,311 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:24:38,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:24:38,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:24:38,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:24:38,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (1/1) ... [2022-11-26 00:24:38,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:38,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:38,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:24:38,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:24:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:24:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:24:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:24:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:24:38,596 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:24:38,598 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:24:39,809 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:24:40,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:24:40,190 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:24:40,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:40 BoogieIcfgContainer [2022-11-26 00:24:40,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:24:40,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:24:40,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:24:40,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:24:40,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:24:37" (1/3) ... [2022-11-26 00:24:40,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb1b2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:40, skipping insertion in model container [2022-11-26 00:24:40,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:38" (2/3) ... [2022-11-26 00:24:40,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb1b2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:40, skipping insertion in model container [2022-11-26 00:24:40,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:40" (3/3) ... [2022-11-26 00:24:40,210 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label34.c [2022-11-26 00:24:40,237 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:24:40,237 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:24:40,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:24:40,316 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;@7a72f774, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:24:40,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:24:40,321 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) [2022-11-26 00:24:40,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:24:40,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:40,332 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] [2022-11-26 00:24:40,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:40,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1243321779, now seen corresponding path program 1 times [2022-11-26 00:24:40,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:40,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407506199] [2022-11-26 00:24:40,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:40,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:40,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:40,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407506199] [2022-11-26 00:24:40,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407506199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:40,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:40,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:40,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241940357] [2022-11-26 00:24:40,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:40,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:40,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:40,956 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) [2022-11-26 00:24:41,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:41,585 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2022-11-26 00:24:41,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:41,588 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 [2022-11-26 00:24:41,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:41,601 INFO L225 Difference]: With dead ends: 251 [2022-11-26 00:24:41,601 INFO L226 Difference]: Without dead ends: 163 [2022-11-26 00:24:41,605 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 [2022-11-26 00:24:41,609 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:41,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 11 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:24:41,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-26 00:24:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-26 00:24:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.9320987654320987) internal successors, (313), 162 states have internal predecessors, (313), 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) [2022-11-26 00:24:41,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 313 transitions. [2022-11-26 00:24:41,727 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 313 transitions. Word has length 80 [2022-11-26 00:24:41,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:41,728 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 313 transitions. [2022-11-26 00:24:41,728 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) [2022-11-26 00:24:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 313 transitions. [2022-11-26 00:24:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-26 00:24:41,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:41,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:41,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:24:41,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:41,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1299315865, now seen corresponding path program 1 times [2022-11-26 00:24:41,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:41,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19252883] [2022-11-26 00:24:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:41,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:41,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:41,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19252883] [2022-11-26 00:24:41,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19252883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:41,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:41,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:41,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052874158] [2022-11-26 00:24:41,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:41,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:41,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:41,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:41,881 INFO L87 Difference]: Start difference. First operand 163 states and 313 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2022-11-26 00:24:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:42,366 INFO L93 Difference]: Finished difference Result 487 states and 937 transitions. [2022-11-26 00:24:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:42,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 91 [2022-11-26 00:24:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:42,370 INFO L225 Difference]: With dead ends: 487 [2022-11-26 00:24:42,370 INFO L226 Difference]: Without dead ends: 325 [2022-11-26 00:24:42,371 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 [2022-11-26 00:24:42,373 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:42,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 20 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:24:42,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-11-26 00:24:42,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2022-11-26 00:24:42,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.84472049689441) internal successors, (594), 322 states have internal predecessors, (594), 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) [2022-11-26 00:24:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 594 transitions. [2022-11-26 00:24:42,427 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 594 transitions. Word has length 91 [2022-11-26 00:24:42,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:42,427 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 594 transitions. [2022-11-26 00:24:42,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2022-11-26 00:24:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 594 transitions. [2022-11-26 00:24:42,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-26 00:24:42,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:42,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:42,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:24:42,432 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:42,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:42,433 INFO L85 PathProgramCache]: Analyzing trace with hash 588064850, now seen corresponding path program 1 times [2022-11-26 00:24:42,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:42,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449560323] [2022-11-26 00:24:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:42,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:24:42,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449560323] [2022-11-26 00:24:42,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449560323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:42,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:42,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:42,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546287287] [2022-11-26 00:24:42,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:42,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:42,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:42,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:42,799 INFO L87 Difference]: Start difference. First operand 323 states and 594 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 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) [2022-11-26 00:24:43,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:43,218 INFO L93 Difference]: Finished difference Result 885 states and 1638 transitions. [2022-11-26 00:24:43,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:43,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 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 95 [2022-11-26 00:24:43,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:43,221 INFO L225 Difference]: With dead ends: 885 [2022-11-26 00:24:43,221 INFO L226 Difference]: Without dead ends: 563 [2022-11-26 00:24:43,223 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 [2022-11-26 00:24:43,224 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:43,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 66 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:24:43,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-11-26 00:24:43,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 483. [2022-11-26 00:24:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.616182572614108) internal successors, (779), 482 states have internal predecessors, (779), 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) [2022-11-26 00:24:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 779 transitions. [2022-11-26 00:24:43,247 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 779 transitions. Word has length 95 [2022-11-26 00:24:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:43,248 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 779 transitions. [2022-11-26 00:24:43,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 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) [2022-11-26 00:24:43,248 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 779 transitions. [2022-11-26 00:24:43,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-26 00:24:43,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:43,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:43,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:24:43,253 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:43,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash 341408237, now seen corresponding path program 1 times [2022-11-26 00:24:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:43,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096960472] [2022-11-26 00:24:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:43,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:24:43,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:43,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096960472] [2022-11-26 00:24:43,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096960472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:43,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:43,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:24:43,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724947973] [2022-11-26 00:24:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:43,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:43,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:43,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:43,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:43,502 INFO L87 Difference]: Start difference. First operand 483 states and 779 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2022-11-26 00:24:43,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:43,940 INFO L93 Difference]: Finished difference Result 1205 states and 2008 transitions. [2022-11-26 00:24:43,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:43,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 100 [2022-11-26 00:24:43,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:43,945 INFO L225 Difference]: With dead ends: 1205 [2022-11-26 00:24:43,945 INFO L226 Difference]: Without dead ends: 723 [2022-11-26 00:24:43,948 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 [2022-11-26 00:24:43,949 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:43,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 139 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:24:43,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-11-26 00:24:43,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 643. [2022-11-26 00:24:43,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.5093457943925233) internal successors, (969), 642 states have internal predecessors, (969), 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) [2022-11-26 00:24:43,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 969 transitions. [2022-11-26 00:24:43,983 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 969 transitions. Word has length 100 [2022-11-26 00:24:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:43,985 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 969 transitions. [2022-11-26 00:24:43,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2022-11-26 00:24:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 969 transitions. [2022-11-26 00:24:43,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-26 00:24:43,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:43,999 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-26 00:24:43,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:24:44,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:44,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1329931491, now seen corresponding path program 1 times [2022-11-26 00:24:44,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:44,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141871284] [2022-11-26 00:24:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:44,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:44,147 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:24:44,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:44,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141871284] [2022-11-26 00:24:44,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141871284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:44,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:44,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:44,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161815440] [2022-11-26 00:24:44,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:44,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:44,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:44,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:44,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:44,154 INFO L87 Difference]: Start difference. First operand 643 states and 969 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2022-11-26 00:24:44,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:44,584 INFO L93 Difference]: Finished difference Result 1765 states and 2719 transitions. [2022-11-26 00:24:44,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:44,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 101 [2022-11-26 00:24:44,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:44,589 INFO L225 Difference]: With dead ends: 1765 [2022-11-26 00:24:44,589 INFO L226 Difference]: Without dead ends: 1123 [2022-11-26 00:24:44,590 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 [2022-11-26 00:24:44,598 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 109 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 30 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 [2022-11-26 00:24:44,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 30 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:24:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-11-26 00:24:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 963. [2022-11-26 00:24:44,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.4386694386694387) internal successors, (1384), 962 states have internal predecessors, (1384), 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) [2022-11-26 00:24:44,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1384 transitions. [2022-11-26 00:24:44,635 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1384 transitions. Word has length 101 [2022-11-26 00:24:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:44,637 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1384 transitions. [2022-11-26 00:24:44,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2022-11-26 00:24:44,637 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1384 transitions. [2022-11-26 00:24:44,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-26 00:24:44,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:44,646 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-26 00:24:44,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:24:44,647 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:44,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:44,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1360775449, now seen corresponding path program 1 times [2022-11-26 00:24:44,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:44,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760583397] [2022-11-26 00:24:44,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:44,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-26 00:24:44,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:44,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760583397] [2022-11-26 00:24:44,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760583397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:44,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:44,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:24:44,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635723689] [2022-11-26 00:24:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:44,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:44,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:44,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:44,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:44,843 INFO L87 Difference]: Start difference. First operand 963 states and 1384 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) [2022-11-26 00:24:45,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:45,239 INFO L93 Difference]: Finished difference Result 2245 states and 3192 transitions. [2022-11-26 00:24:45,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:45,240 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 135 [2022-11-26 00:24:45,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:45,245 INFO L225 Difference]: With dead ends: 2245 [2022-11-26 00:24:45,245 INFO L226 Difference]: Without dead ends: 1283 [2022-11-26 00:24:45,246 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 [2022-11-26 00:24:45,248 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 73 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:45,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 30 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:24:45,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-11-26 00:24:45,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2022-11-26 00:24:45,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1282 states have (on average 1.3525741029641185) internal successors, (1734), 1282 states have internal predecessors, (1734), 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) [2022-11-26 00:24:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1734 transitions. [2022-11-26 00:24:45,305 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1734 transitions. Word has length 135 [2022-11-26 00:24:45,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:45,306 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1734 transitions. [2022-11-26 00:24:45,307 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) [2022-11-26 00:24:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1734 transitions. [2022-11-26 00:24:45,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-26 00:24:45,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:45,313 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:45,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:24:45,313 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:45,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:45,314 INFO L85 PathProgramCache]: Analyzing trace with hash -396855325, now seen corresponding path program 1 times [2022-11-26 00:24:45,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:45,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784429385] [2022-11-26 00:24:45,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:45,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 64 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-26 00:24:45,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:45,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784429385] [2022-11-26 00:24:45,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784429385] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:24:45,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976886514] [2022-11-26 00:24:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:45,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:45,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:45,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:24:45,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:24:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:45,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:24:45,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:46,017 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-26 00:24:46,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:46,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976886514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:46,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:24:46,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-26 00:24:46,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989216612] [2022-11-26 00:24:46,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:46,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:46,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:46,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:46,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:24:46,021 INFO L87 Difference]: Start difference. First operand 1283 states and 1734 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2022-11-26 00:24:46,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:46,510 INFO L93 Difference]: Finished difference Result 2885 states and 3967 transitions. [2022-11-26 00:24:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:46,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 139 [2022-11-26 00:24:46,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:46,516 INFO L225 Difference]: With dead ends: 2885 [2022-11-26 00:24:46,517 INFO L226 Difference]: Without dead ends: 1603 [2022-11-26 00:24:46,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:24:46,519 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 55 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:46,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 66 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:24:46,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-11-26 00:24:46,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1443. [2022-11-26 00:24:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 1.3307905686546464) internal successors, (1919), 1442 states have internal predecessors, (1919), 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) [2022-11-26 00:24:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1919 transitions. [2022-11-26 00:24:46,556 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1919 transitions. Word has length 139 [2022-11-26 00:24:46,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:46,557 INFO L495 AbstractCegarLoop]: Abstraction has 1443 states and 1919 transitions. [2022-11-26 00:24:46,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2022-11-26 00:24:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1919 transitions. [2022-11-26 00:24:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-26 00:24:46,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:46,561 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 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] [2022-11-26 00:24:46,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:46,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-26 00:24:46,778 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:46,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:46,778 INFO L85 PathProgramCache]: Analyzing trace with hash 830600165, now seen corresponding path program 1 times [2022-11-26 00:24:46,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:46,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304954366] [2022-11-26 00:24:46,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:46,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-26 00:24:46,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304954366] [2022-11-26 00:24:46,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304954366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:46,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:46,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:24:46,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808879592] [2022-11-26 00:24:46,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:46,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:46,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:46,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:46,990 INFO L87 Difference]: Start difference. First operand 1443 states and 1919 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2022-11-26 00:24:47,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:47,390 INFO L93 Difference]: Finished difference Result 2885 states and 3837 transitions. [2022-11-26 00:24:47,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:47,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 145 [2022-11-26 00:24:47,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:47,395 INFO L225 Difference]: With dead ends: 2885 [2022-11-26 00:24:47,396 INFO L226 Difference]: Without dead ends: 1443 [2022-11-26 00:24:47,397 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 [2022-11-26 00:24:47,398 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:47,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 143 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:24:47,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-11-26 00:24:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2022-11-26 00:24:47,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 1.2753120665742026) internal successors, (1839), 1442 states have internal predecessors, (1839), 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) [2022-11-26 00:24:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1839 transitions. [2022-11-26 00:24:47,431 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1839 transitions. Word has length 145 [2022-11-26 00:24:47,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:47,431 INFO L495 AbstractCegarLoop]: Abstraction has 1443 states and 1839 transitions. [2022-11-26 00:24:47,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2022-11-26 00:24:47,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1839 transitions. [2022-11-26 00:24:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-26 00:24:47,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:47,435 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-26 00:24:47,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:24:47,436 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:47,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:47,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1567210950, now seen corresponding path program 1 times [2022-11-26 00:24:47,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:47,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005292676] [2022-11-26 00:24:47,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:47,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-26 00:24:47,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:47,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005292676] [2022-11-26 00:24:47,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005292676] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:24:47,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6712434] [2022-11-26 00:24:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:47,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:47,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:47,859 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:24:47,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:24:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:47,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:24:47,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-26 00:24:48,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:48,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6712434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:48,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:24:48,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-26 00:24:48,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711960839] [2022-11-26 00:24:48,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:48,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:48,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:48,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:48,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:24:48,046 INFO L87 Difference]: Start difference. First operand 1443 states and 1839 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2022-11-26 00:24:48,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:48,409 INFO L93 Difference]: Finished difference Result 3445 states and 4447 transitions. [2022-11-26 00:24:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:48,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 154 [2022-11-26 00:24:48,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:48,417 INFO L225 Difference]: With dead ends: 3445 [2022-11-26 00:24:48,417 INFO L226 Difference]: Without dead ends: 1923 [2022-11-26 00:24:48,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:24:48,422 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 68 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:48,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 147 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:24:48,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-11-26 00:24:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1843. [2022-11-26 00:24:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1842 states have (on average 1.239413680781759) internal successors, (2283), 1842 states have internal predecessors, (2283), 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) [2022-11-26 00:24:48,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2283 transitions. [2022-11-26 00:24:48,479 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2283 transitions. Word has length 154 [2022-11-26 00:24:48,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:48,480 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 2283 transitions. [2022-11-26 00:24:48,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2022-11-26 00:24:48,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2283 transitions. [2022-11-26 00:24:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-26 00:24:48,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:48,485 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-11-26 00:24:48,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:24:48,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:48,690 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:48,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:48,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1927329005, now seen corresponding path program 1 times [2022-11-26 00:24:48,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:48,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292644868] [2022-11-26 00:24:48,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:48,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:24:49,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:49,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292644868] [2022-11-26 00:24:49,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292644868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:49,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:49,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:24:49,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808701978] [2022-11-26 00:24:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:49,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:49,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:49,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:49,030 INFO L87 Difference]: Start difference. First operand 1843 states and 2283 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:49,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:49,428 INFO L93 Difference]: Finished difference Result 4245 states and 5376 transitions. [2022-11-26 00:24:49,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:49,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2022-11-26 00:24:49,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:49,438 INFO L225 Difference]: With dead ends: 4245 [2022-11-26 00:24:49,438 INFO L226 Difference]: Without dead ends: 2403 [2022-11-26 00:24:49,441 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 [2022-11-26 00:24:49,441 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 45 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:49,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 111 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:24:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2022-11-26 00:24:49,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2403. [2022-11-26 00:24:49,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 1.2373022481265612) internal successors, (2972), 2402 states have internal predecessors, (2972), 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) [2022-11-26 00:24:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 2972 transitions. [2022-11-26 00:24:49,508 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 2972 transitions. Word has length 166 [2022-11-26 00:24:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:49,510 INFO L495 AbstractCegarLoop]: Abstraction has 2403 states and 2972 transitions. [2022-11-26 00:24:49,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:49,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 2972 transitions. [2022-11-26 00:24:49,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-26 00:24:49,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:49,517 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 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] [2022-11-26 00:24:49,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:24:49,518 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:49,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:49,518 INFO L85 PathProgramCache]: Analyzing trace with hash -236929907, now seen corresponding path program 1 times [2022-11-26 00:24:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:49,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034071013] [2022-11-26 00:24:49,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:49,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:49,671 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-26 00:24:49,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:49,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034071013] [2022-11-26 00:24:49,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034071013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:49,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:49,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:49,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687558361] [2022-11-26 00:24:49,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:49,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:49,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:49,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:49,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:49,675 INFO L87 Difference]: Start difference. First operand 2403 states and 2972 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2022-11-26 00:24:49,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:49,906 INFO L93 Difference]: Finished difference Result 4163 states and 5147 transitions. [2022-11-26 00:24:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:49,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 172 [2022-11-26 00:24:49,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:49,908 INFO L225 Difference]: With dead ends: 4163 [2022-11-26 00:24:49,908 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:24:49,911 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 [2022-11-26 00:24:49,912 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 97 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:49,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 3 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:24:49,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:24:49,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:24:49,913 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) [2022-11-26 00:24:49,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:24:49,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2022-11-26 00:24:49,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:49,914 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:24:49,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2022-11-26 00:24:49,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:24:49,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:24:49,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:24:49,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:24:49,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:24:50,491 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-11-26 00:24:50,492 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-11-26 00:24:50,493 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-11-26 00:24:50,494 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 476) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-11-26 00:24:50,495 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-11-26 00:24:50,496 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-11-26 00:24:50,496 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-11-26 00:24:50,496 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2022-11-26 00:24:50,496 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-11-26 00:24:50,496 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-11-26 00:24:50,496 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-11-26 00:24:50,496 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse0 (<= 9 ~a28~0)) (.cse3 (<= ~a28~0 10)) (.cse2 (<= ~a17~0 8)) (.cse1 (= ~a25~0 1)) (.cse5 (= ~a11~0 0)) (.cse4 (= ~a19~0 1)) (.cse6 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse4) (and (<= 10 ~a28~0) .cse2 .cse3) (and (<= 8 ~a17~0) .cse2 .cse3) (and .cse5 .cse2 .cse4 .cse6) (and .cse1 .cse5 .cse4 .cse6))) [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-11-26 00:24:50,497 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-11-26 00:24:50,498 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:24:50,498 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-11-26 00:24:50,498 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-11-26 00:24:50,504 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse0 (<= 9 ~a28~0)) (.cse3 (<= ~a28~0 10)) (.cse2 (<= ~a17~0 8)) (.cse1 (= ~a25~0 1)) (.cse5 (= ~a11~0 0)) (.cse4 (= ~a19~0 1)) (.cse6 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse4) (and (<= 10 ~a28~0) .cse2 .cse3) (and (<= 8 ~a17~0) .cse2 .cse3) (and .cse5 .cse2 .cse4 .cse6) (and .cse1 .cse5 .cse4 .cse6))) [2022-11-26 00:24:50,504 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-11-26 00:24:50,505 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-11-26 00:24:50,505 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-11-26 00:24:50,505 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-11-26 00:24:50,505 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-11-26 00:24:50,505 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-11-26 00:24:50,505 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-11-26 00:24:50,505 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-11-26 00:24:50,506 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-11-26 00:24:50,506 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-11-26 00:24:50,506 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-11-26 00:24:50,506 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-11-26 00:24:50,506 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-11-26 00:24:50,506 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-11-26 00:24:50,506 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-11-26 00:24:50,507 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-11-26 00:24:50,510 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:50,512 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:24:50,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:24:50 BoogieIcfgContainer [2022-11-26 00:24:50,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:24:50,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:24:50,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:24:50,550 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:24:50,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:40" (3/4) ... [2022-11-26 00:24:50,553 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:24:50,582 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2022-11-26 00:24:50,583 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-26 00:24:50,585 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-26 00:24:50,586 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:24:50,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:24:50,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:24:50,723 INFO L158 Benchmark]: Toolchain (without parser) took 13211.61ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 125.4MB in the beginning and 107.1MB in the end (delta: 18.2MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. [2022-11-26 00:24:50,724 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:24:50,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.84ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 98.7MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-26 00:24:50,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.71ms. Allocated memory is still 157.3MB. Free memory was 98.7MB in the beginning and 92.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-26 00:24:50,725 INFO L158 Benchmark]: Boogie Preprocessor took 58.35ms. Allocated memory is still 157.3MB. Free memory was 92.9MB in the beginning and 88.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:24:50,726 INFO L158 Benchmark]: RCFGBuilder took 1872.66ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 88.8MB in the beginning and 105.8MB in the end (delta: -17.0MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2022-11-26 00:24:50,726 INFO L158 Benchmark]: TraceAbstraction took 10351.35ms. Allocated memory was 188.7MB in the beginning and 272.6MB in the end (delta: 83.9MB). Free memory was 104.7MB in the beginning and 118.7MB in the end (delta: -14.0MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2022-11-26 00:24:50,726 INFO L158 Benchmark]: Witness Printer took 173.12ms. Allocated memory is still 272.6MB. Free memory was 117.6MB in the beginning and 107.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:24:50,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.84ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 98.7MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.71ms. Allocated memory is still 157.3MB. Free memory was 98.7MB in the beginning and 92.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.35ms. Allocated memory is still 157.3MB. Free memory was 92.9MB in the beginning and 88.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1872.66ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 88.8MB in the beginning and 105.8MB in the end (delta: -17.0MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10351.35ms. Allocated memory was 188.7MB in the beginning and 272.6MB in the end (delta: 83.9MB). Free memory was 104.7MB in the beginning and 118.7MB in the end (delta: -14.0MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Witness Printer took 173.12ms. Allocated memory is still 272.6MB. Free memory was 117.6MB in the beginning and 107.1MB 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: 476]: 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: 10.2s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 853 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 853 mSDsluCounter, 766 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 701 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2586 IncrementalHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 701 mSolverCounterUnsat, 717 mSDtfsCounter, 2586 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 321 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2403occurred in iteration=10, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 562 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 51 NumberOfFragments, 167 HoareAnnotationTreeSize, 3 FomulaSimplifications, 152 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 864 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1671 NumberOfCodeBlocks, 1671 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1658 ConstructedInterpolants, 0 QuantifiedInterpolants, 3148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 666 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 996/1012 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 <= 8) && a28 <= 10) || (((9 <= a28 && a17 <= 8) && a28 <= 10) && a19 == 1)) || ((a25 == 1 && a17 <= 8) && a19 == 1)) || ((10 <= a28 && a17 <= 8) && a28 <= 10)) || ((8 <= a17 && a17 <= 8) && a28 <= 10)) || (((a11 == 0 && a17 <= 8) && a19 == 1) && a28 <= 7)) || (((a25 == 1 && a11 == 0) && a19 == 1) && a28 <= 7) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((9 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10) || (((9 <= a28 && a17 <= 8) && a28 <= 10) && a19 == 1)) || ((a25 == 1 && a17 <= 8) && a19 == 1)) || ((10 <= a28 && a17 <= 8) && a28 <= 10)) || ((8 <= a17 && a17 <= 8) && a28 <= 10)) || (((a11 == 0 && a17 <= 8) && a19 == 1) && a28 <= 7)) || (((a25 == 1 && a11 == 0) && a19 == 1) && a28 <= 7) RESULT: Ultimate proved your program to be correct! [2022-11-26 00:24:50,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff150d85-3009-4c2e-add0-5821eabe3e3c/bin/utaipan-ByfvJB40ur/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