./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label08.c -s /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ce363081c1dab610a244bdee8a1005551fe87b5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:25:14,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:25:14,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:25:14,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:25:14,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:25:14,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:25:14,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:25:14,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:25:14,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:25:14,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:25:14,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:25:14,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:25:14,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:25:14,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:25:14,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:25:14,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:25:14,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:25:14,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:25:14,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:25:14,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:25:14,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:25:14,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:25:14,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:25:14,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:25:14,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:25:14,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:25:14,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:25:14,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:25:14,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:25:14,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:25:14,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:25:14,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:25:14,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:25:14,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:25:14,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:25:14,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:25:14,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:25:14,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:25:14,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:25:14,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:25:14,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:25:14,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:25:14,315 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:25:14,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:25:14,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:25:14,316 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:25:14,316 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:25:14,316 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:25:14,316 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:25:14,317 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:25:14,317 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:25:14,317 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:25:14,317 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:25:14,317 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:25:14,317 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:25:14,317 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:25:14,317 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:25:14,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:25:14,318 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:25:14,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:25:14,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:25:14,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:25:14,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:25:14,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:25:14,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:25:14,318 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:25:14,319 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:25:14,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:25:14,319 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:25:14,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:25:14,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:25:14,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:25:14,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:25:14,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:25:14,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:25:14,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:25:14,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:25:14,320 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:25:14,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:25:14,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:25:14,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:25:14,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:25:14,320 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan 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(__VERIFIER_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 -> 6ce363081c1dab610a244bdee8a1005551fe87b5 [2019-12-07 20:25:14,419 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:25:14,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:25:14,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:25:14,430 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:25:14,430 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:25:14,431 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label08.c [2019-12-07 20:25:14,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/data/370b52efc/2cd0bc50778e4f50894e9c4d8c3ac8f2/FLAG4d30d08d0 [2019-12-07 20:25:14,910 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:25:14,911 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/sv-benchmarks/c/eca-rers2012/Problem02_label08.c [2019-12-07 20:25:14,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/data/370b52efc/2cd0bc50778e4f50894e9c4d8c3ac8f2/FLAG4d30d08d0 [2019-12-07 20:25:15,259 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/data/370b52efc/2cd0bc50778e4f50894e9c4d8c3ac8f2 [2019-12-07 20:25:15,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:25:15,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:25:15,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:25:15,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:25:15,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:25:15,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c077e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15, skipping insertion in model container [2019-12-07 20:25:15,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:25:15,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:25:15,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:25:15,539 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:25:15,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:25:15,602 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:25:15,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15 WrapperNode [2019-12-07 20:25:15,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:25:15,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:25:15,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:25:15,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:25:15,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:25:15,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:25:15,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:25:15,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:25:15,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... [2019-12-07 20:25:15,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:25:15,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:25:15,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:25:15,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:25:15,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:25:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:25:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:25:16,851 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:25:16,852 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 20:25:16,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:25:16 BoogieIcfgContainer [2019-12-07 20:25:16,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:25:16,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:25:16,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:25:16,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:25:16,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:25:15" (1/3) ... [2019-12-07 20:25:16,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0a84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:25:16, skipping insertion in model container [2019-12-07 20:25:16,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:25:15" (2/3) ... [2019-12-07 20:25:16,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0a84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:25:16, skipping insertion in model container [2019-12-07 20:25:16,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:25:16" (3/3) ... [2019-12-07 20:25:16,858 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label08.c [2019-12-07 20:25:16,865 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:25:16,870 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:25:16,878 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:25:16,894 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:25:16,895 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:25:16,895 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:25:16,895 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:25:16,895 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:25:16,895 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:25:16,895 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:25:16,895 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:25:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-12-07 20:25:16,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-12-07 20:25:16,912 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:25:16,913 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:25:16,913 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:25:16,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:25:16,917 INFO L82 PathProgramCache]: Analyzing trace with hash 925958927, now seen corresponding path program 1 times [2019-12-07 20:25:16,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:25:16,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515854267] [2019-12-07 20:25:16,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:25:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:25:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:25:17,161 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515854267] [2019-12-07 20:25:17,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:25:17,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 20:25:17,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529366541] [2019-12-07 20:25:17,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:25:17,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:25:17,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:25:17,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:17,178 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-12-07 20:25:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:25:17,618 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-12-07 20:25:17,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:25:17,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-12-07 20:25:17,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:25:17,630 INFO L225 Difference]: With dead ends: 333 [2019-12-07 20:25:17,630 INFO L226 Difference]: Without dead ends: 243 [2019-12-07 20:25:17,633 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:17,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-12-07 20:25:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 163. [2019-12-07 20:25:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-12-07 20:25:17,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2019-12-07 20:25:17,676 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2019-12-07 20:25:17,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:25:17,677 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2019-12-07 20:25:17,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:25:17,677 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2019-12-07 20:25:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-12-07 20:25:17,680 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:25:17,680 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:25:17,680 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:25:17,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:25:17,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1028679684, now seen corresponding path program 1 times [2019-12-07 20:25:17,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:25:17,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734137553] [2019-12-07 20:25:17,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:25:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:25:17,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:25:17,757 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734137553] [2019-12-07 20:25:17,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:25:17,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 20:25:17,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548304680] [2019-12-07 20:25:17,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:25:17,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:25:17,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:25:17,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:17,760 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand 4 states. [2019-12-07 20:25:18,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:25:18,126 INFO L93 Difference]: Finished difference Result 565 states and 1047 transitions. [2019-12-07 20:25:18,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:25:18,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2019-12-07 20:25:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:25:18,131 INFO L225 Difference]: With dead ends: 565 [2019-12-07 20:25:18,132 INFO L226 Difference]: Without dead ends: 403 [2019-12-07 20:25:18,133 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:18,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-12-07 20:25:18,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 243. [2019-12-07 20:25:18,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-12-07 20:25:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 453 transitions. [2019-12-07 20:25:18,150 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 453 transitions. Word has length 84 [2019-12-07 20:25:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:25:18,151 INFO L462 AbstractCegarLoop]: Abstraction has 243 states and 453 transitions. [2019-12-07 20:25:18,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:25:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 453 transitions. [2019-12-07 20:25:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-12-07 20:25:18,154 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:25:18,154 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:25:18,154 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:25:18,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:25:18,154 INFO L82 PathProgramCache]: Analyzing trace with hash 221759406, now seen corresponding path program 1 times [2019-12-07 20:25:18,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:25:18,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757882985] [2019-12-07 20:25:18,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:25:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:25:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:25:18,214 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757882985] [2019-12-07 20:25:18,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:25:18,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 20:25:18,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419767556] [2019-12-07 20:25:18,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:25:18,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:25:18,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:25:18,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:18,216 INFO L87 Difference]: Start difference. First operand 243 states and 453 transitions. Second operand 4 states. [2019-12-07 20:25:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:25:18,529 INFO L93 Difference]: Finished difference Result 807 states and 1498 transitions. [2019-12-07 20:25:18,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:25:18,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-12-07 20:25:18,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:25:18,532 INFO L225 Difference]: With dead ends: 807 [2019-12-07 20:25:18,532 INFO L226 Difference]: Without dead ends: 565 [2019-12-07 20:25:18,534 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:18,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2019-12-07 20:25:18,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 403. [2019-12-07 20:25:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-12-07 20:25:18,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 719 transitions. [2019-12-07 20:25:18,554 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 719 transitions. Word has length 98 [2019-12-07 20:25:18,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:25:18,554 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 719 transitions. [2019-12-07 20:25:18,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:25:18,554 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 719 transitions. [2019-12-07 20:25:18,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-12-07 20:25:18,558 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:25:18,558 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:25:18,558 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:25:18,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:25:18,559 INFO L82 PathProgramCache]: Analyzing trace with hash -875185821, now seen corresponding path program 1 times [2019-12-07 20:25:18,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:25:18,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402950461] [2019-12-07 20:25:18,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:25:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:25:18,606 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:25:18,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402950461] [2019-12-07 20:25:18,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:25:18,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 20:25:18,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475965771] [2019-12-07 20:25:18,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:25:18,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:25:18,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:25:18,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:18,608 INFO L87 Difference]: Start difference. First operand 403 states and 719 transitions. Second operand 4 states. [2019-12-07 20:25:19,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:25:19,032 INFO L93 Difference]: Finished difference Result 1285 states and 2264 transitions. [2019-12-07 20:25:19,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:25:19,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2019-12-07 20:25:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:25:19,037 INFO L225 Difference]: With dead ends: 1285 [2019-12-07 20:25:19,038 INFO L226 Difference]: Without dead ends: 883 [2019-12-07 20:25:19,039 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:19,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2019-12-07 20:25:19,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 723. [2019-12-07 20:25:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-12-07 20:25:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1143 transitions. [2019-12-07 20:25:19,059 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1143 transitions. Word has length 102 [2019-12-07 20:25:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:25:19,060 INFO L462 AbstractCegarLoop]: Abstraction has 723 states and 1143 transitions. [2019-12-07 20:25:19,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:25:19,060 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1143 transitions. [2019-12-07 20:25:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-12-07 20:25:19,063 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:25:19,063 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-12-07 20:25:19,063 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:25:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:25:19,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1713483528, now seen corresponding path program 1 times [2019-12-07 20:25:19,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:25:19,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433592740] [2019-12-07 20:25:19,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:25:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:25:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-12-07 20:25:19,113 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433592740] [2019-12-07 20:25:19,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:25:19,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 20:25:19,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332553248] [2019-12-07 20:25:19,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:25:19,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:25:19,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:25:19,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:25:19,114 INFO L87 Difference]: Start difference. First operand 723 states and 1143 transitions. Second operand 3 states. [2019-12-07 20:25:19,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:25:19,380 INFO L93 Difference]: Finished difference Result 1845 states and 2895 transitions. [2019-12-07 20:25:19,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:25:19,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2019-12-07 20:25:19,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:25:19,385 INFO L225 Difference]: With dead ends: 1845 [2019-12-07 20:25:19,385 INFO L226 Difference]: Without dead ends: 1123 [2019-12-07 20:25:19,386 INFO L630 BasicCegarLoop]: 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 [2019-12-07 20:25:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2019-12-07 20:25:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1123. [2019-12-07 20:25:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2019-12-07 20:25:19,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1588 transitions. [2019-12-07 20:25:19,404 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1588 transitions. Word has length 173 [2019-12-07 20:25:19,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:25:19,404 INFO L462 AbstractCegarLoop]: Abstraction has 1123 states and 1588 transitions. [2019-12-07 20:25:19,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:25:19,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1588 transitions. [2019-12-07 20:25:19,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-12-07 20:25:19,406 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:25:19,406 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-12-07 20:25:19,407 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:25:19,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:25:19,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1616537457, now seen corresponding path program 1 times [2019-12-07 20:25:19,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:25:19,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420141337] [2019-12-07 20:25:19,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:25:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:25:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-07 20:25:19,485 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420141337] [2019-12-07 20:25:19,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:25:19,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 20:25:19,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723104152] [2019-12-07 20:25:19,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:25:19,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:25:19,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:25:19,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:19,486 INFO L87 Difference]: Start difference. First operand 1123 states and 1588 transitions. Second operand 4 states. [2019-12-07 20:25:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:25:19,884 INFO L93 Difference]: Finished difference Result 2643 states and 3743 transitions. [2019-12-07 20:25:19,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:25:19,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 178 [2019-12-07 20:25:19,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:25:19,885 INFO L225 Difference]: With dead ends: 2643 [2019-12-07 20:25:19,885 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 20:25:19,887 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:25:19,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 20:25:19,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 20:25:19,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 20:25:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 20:25:19,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2019-12-07 20:25:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:25:19,888 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 20:25:19,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:25:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 20:25:19,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 20:25:19,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-12-07 20:25:20,024 INFO L246 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-12-07 20:25:20,025 INFO L246 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 538) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-12-07 20:25:20,026 INFO L246 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L242 CegarLoopResult]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse2 (not (= ~a28~0 11))) (.cse0 (or (= ~a17~0 8) (not (= ~a11~0 1)))) (.cse3 (= ~a19~0 1)) (.cse1 (not (= ~a25~0 1)))) (or (= ~a28~0 9) (and .cse0 .cse1) (and .cse0 .cse2) (and (not (= ~a28~0 8)) .cse3 .cse2) (and .cse0 .cse3) (and (= ~a28~0 10) .cse1))) [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L249 CegarLoopResult]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-12-07 20:25:20,027 INFO L246 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L242 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (not (= ~a28~0 11))) (.cse0 (or (= ~a17~0 8) (not (= ~a11~0 1)))) (.cse3 (= ~a19~0 1)) (.cse1 (not (= ~a25~0 1)))) (or (= ~a28~0 9) (and .cse0 .cse1) (and .cse0 .cse2) (and (not (= ~a28~0 8)) .cse3 .cse2) (and .cse0 .cse3) (and (= ~a28~0 10) .cse1))) [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-12-07 20:25:20,028 INFO L246 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-12-07 20:25:20,029 INFO L246 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-12-07 20:25:20,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:25:20 BoogieIcfgContainer [2019-12-07 20:25:20,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:25:20,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:25:20,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:25:20,043 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:25:20,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:25:16" (3/4) ... [2019-12-07 20:25:20,046 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 20:25:20,061 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2019-12-07 20:25:20,062 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2019-12-07 20:25:20,064 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-12-07 20:25:20,065 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 20:25:20,183 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_258bf180-9667-4479-ba31-7c83391fc823/bin/utaipan/witness.graphml [2019-12-07 20:25:20,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:25:20,185 INFO L168 Benchmark]: Toolchain (without parser) took 4923.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 931.7 MB in the beginning and 892.8 MB in the end (delta: 39.0 MB). Peak memory consumption was 197.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:25:20,185 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:25:20,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -132.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:25:20,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:25:20,186 INFO L168 Benchmark]: Boogie Preprocessor took 51.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:25:20,187 INFO L168 Benchmark]: RCFGBuilder took 1146.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 834.9 MB in the end (delta: 218.7 MB). Peak memory consumption was 218.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:25:20,187 INFO L168 Benchmark]: TraceAbstraction took 3189.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 69.2 MB). Free memory was 834.9 MB in the beginning and 914.6 MB in the end (delta: -79.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:25:20,187 INFO L168 Benchmark]: Witness Printer took 140.70 ms. Allocated memory is still 1.2 GB. Free memory was 914.6 MB in the beginning and 892.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:25:20,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -132.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1146.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 834.9 MB in the end (delta: 218.7 MB). Peak memory consumption was 218.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3189.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 69.2 MB). Free memory was 834.9 MB in the beginning and 914.6 MB in the end (delta: -79.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 140.70 ms. Allocated memory is still 1.2 GB. Free memory was 914.6 MB in the beginning and 892.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 538]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((a28 == 9 || ((a17 == 8 || !(a11 == 1)) && !(a25 == 1))) || ((a17 == 8 || !(a11 == 1)) && !(a28 == 11))) || ((!(a28 == 8) && a19 == 1) && !(a28 == 11))) || ((a17 == 8 || !(a11 == 1)) && a19 == 1)) || (a28 == 10 && !(a25 == 1)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((a28 == 9 || ((a17 == 8 || !(a11 == 1)) && !(a25 == 1))) || ((a17 == 8 || !(a11 == 1)) && !(a28 == 11))) || ((!(a28 == 8) && a19 == 1) && !(a28 == 11))) || ((a17 == 8 || !(a11 == 1)) && a19 == 1)) || (a28 == 10 && !(a25 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 171 SDtfs, 851 SDslu, 85 SDs, 0 SdLazy, 2523 SolverSat, 634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1123occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 562 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 44 NumberOfFragments, 125 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1508 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 94 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 715 NumberOfCodeBlocks, 715 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 709 ConstructedInterpolants, 0 QuantifiedInterpolants, 178308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 288/288 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...