./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label48.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_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label48.c -s /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/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 d21c5ccf8cec8e25a14d9a868b5f3d1150798ab4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:48:25,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:48:25,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:48:25,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:48:25,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:48:25,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:48:25,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:48:25,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:48:25,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:48:25,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:48:25,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:48:25,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:48:25,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:48:25,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:48:25,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:48:25,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:48:25,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:48:25,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:48:25,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:48:25,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:48:25,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:48:25,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:48:25,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:48:25,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:48:25,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:48:25,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:48:25,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:48:25,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:48:25,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:48:25,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:48:25,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:48:25,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:48:25,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:48:25,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:48:25,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:48:25,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:48:25,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:48:25,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:48:25,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:48:25,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:48:25,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:48:25,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:48:25,203 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:48:25,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:48:25,203 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:48:25,204 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:48:25,204 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:48:25,204 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:48:25,204 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:48:25,204 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:48:25,204 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:48:25,204 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:48:25,204 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:48:25,205 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:48:25,205 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:48:25,205 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:48:25,205 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:48:25,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:48:25,206 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:48:25,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:48:25,207 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:48:25,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:48:25,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:48:25,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:48:25,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:48:25,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:48:25,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:48:25,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:48:25,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:48:25,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:48:25,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:48:25,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:48:25,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:48:25,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:48:25,208 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_875ccd08-a290-458e-a05f-2477462cf288/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 -> d21c5ccf8cec8e25a14d9a868b5f3d1150798ab4 [2019-12-07 15:48:25,307 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:48:25,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:48:25,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:48:25,320 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:48:25,320 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:48:25,321 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label48.c [2019-12-07 15:48:25,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/data/9990d7908/21e48c4178584f83b7e1d68af71828a8/FLAG89323d16b [2019-12-07 15:48:25,782 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:48:25,782 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/sv-benchmarks/c/eca-rers2012/Problem02_label48.c [2019-12-07 15:48:25,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/data/9990d7908/21e48c4178584f83b7e1d68af71828a8/FLAG89323d16b [2019-12-07 15:48:26,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/data/9990d7908/21e48c4178584f83b7e1d68af71828a8 [2019-12-07 15:48:26,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:48:26,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:48:26,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:48:26,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:48:26,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:48:26,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c26b366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26, skipping insertion in model container [2019-12-07 15:48:26,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:48:26,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:48:26,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:48:26,453 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:48:26,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:48:26,515 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:48:26,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26 WrapperNode [2019-12-07 15:48:26,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:48:26,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:48:26,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:48:26,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:48:26,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:48:26,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:48:26,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:48:26,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:48:26,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... [2019-12-07 15:48:26,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:48:26,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:48:26,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:48:26,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:48:26,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/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 15:48:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:48:26,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:48:27,790 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:48:27,790 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 15:48:27,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:27 BoogieIcfgContainer [2019-12-07 15:48:27,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:48:27,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:48:27,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:48:27,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:48:27,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:48:26" (1/3) ... [2019-12-07 15:48:27,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c40d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:48:27, skipping insertion in model container [2019-12-07 15:48:27,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:26" (2/3) ... [2019-12-07 15:48:27,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c40d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:48:27, skipping insertion in model container [2019-12-07 15:48:27,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:27" (3/3) ... [2019-12-07 15:48:27,798 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label48.c [2019-12-07 15:48:27,805 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:48:27,809 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:48:27,817 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:48:27,844 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:48:27,845 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:48:27,845 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:48:27,845 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:48:27,845 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:48:27,845 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:48:27,845 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:48:27,845 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:48:27,864 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-12-07 15:48:27,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-12-07 15:48:27,870 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:48:27,870 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 15:48:27,871 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:48:27,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:27,874 INFO L82 PathProgramCache]: Analyzing trace with hash 925962767, now seen corresponding path program 1 times [2019-12-07 15:48:27,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:48:27,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841643185] [2019-12-07 15:48:27,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:28,109 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 15:48:28,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841643185] [2019-12-07 15:48:28,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:48:28,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:48:28,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352370080] [2019-12-07 15:48:28,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:48:28,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:48:28,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:48:28,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:48:28,125 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-12-07 15:48:28,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:48:28,560 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-12-07 15:48:28,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:48:28,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-12-07 15:48:28,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:48:28,574 INFO L225 Difference]: With dead ends: 333 [2019-12-07 15:48:28,574 INFO L226 Difference]: Without dead ends: 243 [2019-12-07 15:48:28,577 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 15:48:28,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-12-07 15:48:28,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 163. [2019-12-07 15:48:28,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-12-07 15:48:28,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2019-12-07 15:48:28,616 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2019-12-07 15:48:28,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:48:28,616 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2019-12-07 15:48:28,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:48:28,617 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2019-12-07 15:48:28,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-12-07 15:48:28,619 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:48:28,619 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 15:48:28,620 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:48:28,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:28,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1028683524, now seen corresponding path program 1 times [2019-12-07 15:48:28,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:48:28,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262486971] [2019-12-07 15:48:28,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:48:28,682 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262486971] [2019-12-07 15:48:28,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:48:28,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:48:28,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685090709] [2019-12-07 15:48:28,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:48:28,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:48:28,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:48:28,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:48:28,684 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand 3 states. [2019-12-07 15:48:28,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:48:28,899 INFO L93 Difference]: Finished difference Result 485 states and 891 transitions. [2019-12-07 15:48:28,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:48:28,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-12-07 15:48:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:48:28,903 INFO L225 Difference]: With dead ends: 485 [2019-12-07 15:48:28,903 INFO L226 Difference]: Without dead ends: 323 [2019-12-07 15:48:28,905 INFO L630 BasicCegarLoop]: 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 [2019-12-07 15:48:28,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-12-07 15:48:28,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2019-12-07 15:48:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-12-07 15:48:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 548 transitions. [2019-12-07 15:48:28,925 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 548 transitions. Word has length 84 [2019-12-07 15:48:28,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:48:28,925 INFO L462 AbstractCegarLoop]: Abstraction has 323 states and 548 transitions. [2019-12-07 15:48:28,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:48:28,926 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 548 transitions. [2019-12-07 15:48:28,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-12-07 15:48:28,929 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:48:28,929 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:48:28,929 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:48:28,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:28,930 INFO L82 PathProgramCache]: Analyzing trace with hash -833097069, now seen corresponding path program 1 times [2019-12-07 15:48:28,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:48:28,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168603500] [2019-12-07 15:48:28,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:48:28,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168603500] [2019-12-07 15:48:28,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:48:28,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:48:28,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553709575] [2019-12-07 15:48:28,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:48:28,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:48:28,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:48:28,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:48:28,962 INFO L87 Difference]: Start difference. First operand 323 states and 548 transitions. Second operand 3 states. [2019-12-07 15:48:29,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:48:29,211 INFO L93 Difference]: Finished difference Result 965 states and 1641 transitions. [2019-12-07 15:48:29,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:48:29,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2019-12-07 15:48:29,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:48:29,216 INFO L225 Difference]: With dead ends: 965 [2019-12-07 15:48:29,216 INFO L226 Difference]: Without dead ends: 643 [2019-12-07 15:48:29,218 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 15:48:29,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-12-07 15:48:29,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-12-07 15:48:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-12-07 15:48:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1004 transitions. [2019-12-07 15:48:29,242 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1004 transitions. Word has length 90 [2019-12-07 15:48:29,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:48:29,242 INFO L462 AbstractCegarLoop]: Abstraction has 643 states and 1004 transitions. [2019-12-07 15:48:29,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:48:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1004 transitions. [2019-12-07 15:48:29,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-12-07 15:48:29,246 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:48:29,246 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 15:48:29,246 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:48:29,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:29,247 INFO L82 PathProgramCache]: Analyzing trace with hash 221763246, now seen corresponding path program 1 times [2019-12-07 15:48:29,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:48:29,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821998228] [2019-12-07 15:48:29,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:29,285 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 15:48:29,286 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821998228] [2019-12-07 15:48:29,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:48:29,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:48:29,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989079711] [2019-12-07 15:48:29,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:48:29,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:48:29,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:48:29,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:48:29,287 INFO L87 Difference]: Start difference. First operand 643 states and 1004 transitions. Second operand 4 states. [2019-12-07 15:48:29,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:48:29,532 INFO L93 Difference]: Finished difference Result 1285 states and 2007 transitions. [2019-12-07 15:48:29,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:48:29,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-12-07 15:48:29,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:48:29,535 INFO L225 Difference]: With dead ends: 1285 [2019-12-07 15:48:29,536 INFO L226 Difference]: Without dead ends: 643 [2019-12-07 15:48:29,537 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 15:48:29,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-12-07 15:48:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-12-07 15:48:29,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-12-07 15:48:29,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 954 transitions. [2019-12-07 15:48:29,553 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 954 transitions. Word has length 98 [2019-12-07 15:48:29,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:48:29,553 INFO L462 AbstractCegarLoop]: Abstraction has 643 states and 954 transitions. [2019-12-07 15:48:29,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:48:29,553 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 954 transitions. [2019-12-07 15:48:29,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-12-07 15:48:29,555 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:48:29,555 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 15:48:29,556 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:48:29,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:29,556 INFO L82 PathProgramCache]: Analyzing trace with hash -875181981, now seen corresponding path program 1 times [2019-12-07 15:48:29,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:48:29,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216031397] [2019-12-07 15:48:29,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:29,603 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 15:48:29,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216031397] [2019-12-07 15:48:29,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:48:29,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:48:29,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782137462] [2019-12-07 15:48:29,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:48:29,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:48:29,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:48:29,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:48:29,605 INFO L87 Difference]: Start difference. First operand 643 states and 954 transitions. Second operand 4 states. [2019-12-07 15:48:30,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:48:30,066 INFO L93 Difference]: Finished difference Result 2085 states and 3049 transitions. [2019-12-07 15:48:30,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:48:30,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2019-12-07 15:48:30,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:48:30,072 INFO L225 Difference]: With dead ends: 2085 [2019-12-07 15:48:30,072 INFO L226 Difference]: Without dead ends: 1443 [2019-12-07 15:48:30,073 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 15:48:30,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2019-12-07 15:48:30,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2019-12-07 15:48:30,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1443 states. [2019-12-07 15:48:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1918 transitions. [2019-12-07 15:48:30,094 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1918 transitions. Word has length 102 [2019-12-07 15:48:30,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:48:30,095 INFO L462 AbstractCegarLoop]: Abstraction has 1443 states and 1918 transitions. [2019-12-07 15:48:30,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:48:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1918 transitions. [2019-12-07 15:48:30,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-12-07 15:48:30,097 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:48:30,097 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 15:48:30,098 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:48:30,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:30,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1620595601, now seen corresponding path program 1 times [2019-12-07 15:48:30,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:48:30,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975715188] [2019-12-07 15:48:30,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:30,214 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 15:48:30,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975715188] [2019-12-07 15:48:30,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:48:30,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:48:30,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097472889] [2019-12-07 15:48:30,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:48:30,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:48:30,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:48:30,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:48:30,216 INFO L87 Difference]: Start difference. First operand 1443 states and 1918 transitions. Second operand 4 states. [2019-12-07 15:48:30,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:48:30,653 INFO L93 Difference]: Finished difference Result 3443 states and 4583 transitions. [2019-12-07 15:48:30,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:48:30,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 178 [2019-12-07 15:48:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:48:30,655 INFO L225 Difference]: With dead ends: 3443 [2019-12-07 15:48:30,655 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:48:30,658 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 15:48:30,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:48:30,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:48:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:48:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:48:30,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2019-12-07 15:48:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:48:30,659 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:48:30,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:48:30,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:48:30,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:48:30,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:48:30,829 INFO L246 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-12-07 15:48:30,829 INFO L246 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-12-07 15:48:30,829 INFO L246 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-12-07 15:48:30,829 INFO L246 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-12-07 15:48:30,829 INFO L246 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-12-07 15:48:30,829 INFO L246 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-12-07 15:48:30,829 INFO L246 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2019-12-07 15:48:30,830 INFO L246 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-12-07 15:48:30,831 INFO L246 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 583) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-12-07 15:48:30,832 INFO L246 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-12-07 15:48:30,833 INFO L242 CegarLoopResult]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse0 (not (= ~a28~0 8))) (.cse3 (<= ~a25~0 0)) (.cse4 (not (= ~a11~0 1))) (.cse5 (= ~a19~0 1)) (.cse1 (= ~a25~0 1)) (.cse2 (not (= ~a28~0 11)))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (and .cse3 .cse4) (and .cse5 .cse1 .cse4) (and .cse5 .cse1 .cse2))) [2019-12-07 15:48:30,833 INFO L246 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-12-07 15:48:30,833 INFO L246 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-12-07 15:48:30,833 INFO L249 CegarLoopResult]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-12-07 15:48:30,833 INFO L246 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-12-07 15:48:30,833 INFO L246 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-12-07 15:48:30,833 INFO L246 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-12-07 15:48:30,833 INFO L246 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-12-07 15:48:30,833 INFO L246 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-12-07 15:48:30,833 INFO L246 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L242 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (not (= ~a28~0 8))) (.cse3 (<= ~a25~0 0)) (.cse4 (not (= ~a11~0 1))) (.cse5 (= ~a19~0 1)) (.cse1 (= ~a25~0 1)) (.cse2 (not (= ~a28~0 11)))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse1 .cse4 .cse2) (and .cse3 .cse4) (and .cse5 .cse1 .cse4) (and .cse5 .cse1 .cse2))) [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-12-07 15:48:30,834 INFO L246 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-12-07 15:48:30,835 INFO L246 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-12-07 15:48:30,836 INFO L246 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-12-07 15:48:30,836 INFO L246 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-12-07 15:48:30,836 INFO L246 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-12-07 15:48:30,836 INFO L246 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-12-07 15:48:30,836 INFO L246 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-12-07 15:48:30,836 INFO L246 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-12-07 15:48:30,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:48:30 BoogieIcfgContainer [2019-12-07 15:48:30,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:48:30,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:48:30,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:48:30,852 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:48:30,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:27" (3/4) ... [2019-12-07 15:48:30,856 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:48:30,874 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2019-12-07 15:48:30,875 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2019-12-07 15:48:30,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-12-07 15:48:30,878 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:48:30,976 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_875ccd08-a290-458e-a05f-2477462cf288/bin/utaipan/witness.graphml [2019-12-07 15:48:30,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:48:30,978 INFO L168 Benchmark]: Toolchain (without parser) took 4829.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.8 MB). Free memory was 938.1 MB in the beginning and 996.8 MB in the end (delta: -58.7 MB). Peak memory consumption was 132.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:30,978 INFO L168 Benchmark]: CDTParser took 0.20 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 15:48:30,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -161.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:30,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.82 ms. Allocated memory is still 1.2 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 15:48:30,979 INFO L168 Benchmark]: Boogie Preprocessor took 50.86 ms. Allocated memory is still 1.2 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 15:48:30,979 INFO L168 Benchmark]: RCFGBuilder took 1163.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 870.5 MB in the end (delta: 218.7 MB). Peak memory consumption was 218.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:30,979 INFO L168 Benchmark]: TraceAbstraction took 3059.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 867.5 MB in the beginning and 1.0 GB in the end (delta: -150.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:48:30,980 INFO L168 Benchmark]: Witness Printer took 123.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:30,981 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 366.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -161.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.82 ms. Allocated memory is still 1.2 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 50.86 ms. Allocated memory is still 1.2 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 1163.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 870.5 MB in the end (delta: 218.7 MB). Peak memory consumption was 218.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3059.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 867.5 MB in the beginning and 1.0 GB in the end (delta: -150.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 123.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 583]: 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 == 8) && a25 == 1) && !(a28 == 11)) || ((!(a28 == 8) && a25 <= 0) && !(a28 == 11))) || ((a25 == 1 && !(a11 == 1)) && !(a28 == 11))) || (a25 <= 0 && !(a11 == 1))) || ((a19 == 1 && a25 == 1) && !(a11 == 1))) || ((a19 == 1 && a25 == 1) && !(a28 == 11)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((!(a28 == 8) && a25 == 1) && !(a28 == 11)) || ((!(a28 == 8) && a25 <= 0) && !(a28 == 11))) || ((a25 == 1 && !(a11 == 1)) && !(a28 == 11))) || (a25 <= 0 && !(a11 == 1))) || ((a19 == 1 && a25 == 1) && !(a11 == 1))) || ((a19 == 1 && a25 == 1) && !(a28 == 11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 321 SDtfs, 594 SDslu, 74 SDs, 0 SdLazy, 2215 SolverSat, 600 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1443occurred 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, 80 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 56 NumberOfFragments, 135 HoareAnnotationTreeSize, 3 FomulaSimplifications, 574 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 144 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 632 NumberOfCodeBlocks, 632 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 626 ConstructedInterpolants, 0 QuantifiedInterpolants, 150442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 184/184 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...