./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_3a_alt.BV.c.cil.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_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_3a_alt.BV.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/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 96aededabe895f84f71d6d614ed1af512bf7353b ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:39:50,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:39:50,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:39:50,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:39:50,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:39:50,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:39:50,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:39:50,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:39:50,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:39:50,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:39:50,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:39:50,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:39:50,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:39:50,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:39:50,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:39:50,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:39:50,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:39:50,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:39:50,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:39:50,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:39:50,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:39:50,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:39:50,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:39:50,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:39:50,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:39:50,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:39:50,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:39:50,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:39:50,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:39:50,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:39:50,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:39:50,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:39:50,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:39:50,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:39:50,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:39:50,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:39:50,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:39:50,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:39:50,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:39:50,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:39:50,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:39:50,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:39:50,923 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:39:50,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:39:50,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:39:50,924 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:39:50,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:39:50,925 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:39:50,925 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:39:50,925 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:39:50,925 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:39:50,925 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:39:50,925 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:39:50,925 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:39:50,926 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:39:50,926 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:39:50,926 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:39:50,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:39:50,926 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:39:50,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:39:50,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:39:50,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:39:50,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:39:50,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:39:50,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:39:50,927 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:39:50,927 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:39:50,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:39:50,928 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:39:50,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:39:50,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:39:50,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:39:50,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:39:50,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:39:50,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:39:50,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:39:50,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:39:50,929 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:39:50,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:39:50,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:39:50,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:39:50,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:39:50,929 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_ac8f988d-44a6-45f0-95f2-b73f6487a1be/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 -> 96aededabe895f84f71d6d614ed1af512bf7353b [2019-12-07 13:39:51,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:39:51,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:39:51,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:39:51,041 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:39:51,041 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:39:51,042 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/../../sv-benchmarks/c/bitvector/s3_srvr_3a_alt.BV.c.cil.c [2019-12-07 13:39:51,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/data/d9fbd2779/7334da90c0554c8890faa5554b5e74fb/FLAG77a28f22c [2019-12-07 13:39:51,514 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:39:51,515 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/sv-benchmarks/c/bitvector/s3_srvr_3a_alt.BV.c.cil.c [2019-12-07 13:39:51,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/data/d9fbd2779/7334da90c0554c8890faa5554b5e74fb/FLAG77a28f22c [2019-12-07 13:39:51,533 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/data/d9fbd2779/7334da90c0554c8890faa5554b5e74fb [2019-12-07 13:39:51,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:39:51,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:39:51,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:39:51,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:39:51,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:39:51,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12624de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51, skipping insertion in model container [2019-12-07 13:39:51,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:39:51,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:39:51,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:39:51,748 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:39:51,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:39:51,792 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:39:51,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51 WrapperNode [2019-12-07 13:39:51,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:39:51,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:39:51,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:39:51,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:39:51,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:39:51,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:39:51,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:39:51,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:39:51,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... [2019-12-07 13:39:51,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:39:51,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:39:51,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:39:51,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:39:51,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/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 13:39:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:39:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:39:51,965 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 13:39:52,261 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2019-12-07 13:39:52,261 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2019-12-07 13:39:52,396 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:39:52,396 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 13:39:52,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:52 BoogieIcfgContainer [2019-12-07 13:39:52,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:39:52,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:39:52,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:39:52,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:39:52,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:39:51" (1/3) ... [2019-12-07 13:39:52,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126a487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:52, skipping insertion in model container [2019-12-07 13:39:52,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:51" (2/3) ... [2019-12-07 13:39:52,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126a487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:52, skipping insertion in model container [2019-12-07 13:39:52,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:52" (3/3) ... [2019-12-07 13:39:52,402 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a_alt.BV.c.cil.c [2019-12-07 13:39:52,408 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:39:52,413 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:39:52,421 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:39:52,437 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:39:52,437 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:39:52,437 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:39:52,437 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:39:52,437 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:39:52,438 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:39:52,438 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:39:52,438 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:39:52,449 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-12-07 13:39:52,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-07 13:39:52,455 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:52,455 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] [2019-12-07 13:39:52,455 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:52,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:52,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1403096235, now seen corresponding path program 1 times [2019-12-07 13:39:52,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:52,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498678619] [2019-12-07 13:39:52,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:52,604 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 13:39:52,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498678619] [2019-12-07 13:39:52,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:52,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:52,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510391634] [2019-12-07 13:39:52,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:52,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:52,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:52,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:52,620 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 3 states. [2019-12-07 13:39:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:52,785 INFO L93 Difference]: Finished difference Result 254 states and 448 transitions. [2019-12-07 13:39:52,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:52,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-12-07 13:39:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:52,795 INFO L225 Difference]: With dead ends: 254 [2019-12-07 13:39:52,795 INFO L226 Difference]: Without dead ends: 146 [2019-12-07 13:39:52,798 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 13:39:52,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-12-07 13:39:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2019-12-07 13:39:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-12-07 13:39:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 228 transitions. [2019-12-07 13:39:52,833 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 228 transitions. Word has length 39 [2019-12-07 13:39:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:52,834 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 228 transitions. [2019-12-07 13:39:52,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 228 transitions. [2019-12-07 13:39:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 13:39:52,836 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:52,836 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] [2019-12-07 13:39:52,836 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:52,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:52,836 INFO L82 PathProgramCache]: Analyzing trace with hash -553375654, now seen corresponding path program 1 times [2019-12-07 13:39:52,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:52,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553007212] [2019-12-07 13:39:52,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:52,880 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 13:39:52,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553007212] [2019-12-07 13:39:52,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:52,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:52,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530368882] [2019-12-07 13:39:52,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:52,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:52,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:52,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:52,882 INFO L87 Difference]: Start difference. First operand 141 states and 228 transitions. Second operand 3 states. [2019-12-07 13:39:53,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:53,017 INFO L93 Difference]: Finished difference Result 326 states and 536 transitions. [2019-12-07 13:39:53,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:53,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-12-07 13:39:53,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:53,020 INFO L225 Difference]: With dead ends: 326 [2019-12-07 13:39:53,020 INFO L226 Difference]: Without dead ends: 185 [2019-12-07 13:39:53,021 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 13:39:53,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-12-07 13:39:53,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 180. [2019-12-07 13:39:53,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-12-07 13:39:53,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 301 transitions. [2019-12-07 13:39:53,034 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 301 transitions. Word has length 40 [2019-12-07 13:39:53,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:53,034 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 301 transitions. [2019-12-07 13:39:53,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:53,035 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 301 transitions. [2019-12-07 13:39:53,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-12-07 13:39:53,037 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:53,037 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:39:53,037 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:53,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:53,037 INFO L82 PathProgramCache]: Analyzing trace with hash -62523302, now seen corresponding path program 1 times [2019-12-07 13:39:53,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:53,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554192800] [2019-12-07 13:39:53,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:39:53,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554192800] [2019-12-07 13:39:53,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:53,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:53,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509684992] [2019-12-07 13:39:53,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:53,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:53,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:53,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:53,080 INFO L87 Difference]: Start difference. First operand 180 states and 301 transitions. Second operand 3 states. [2019-12-07 13:39:53,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:53,181 INFO L93 Difference]: Finished difference Result 387 states and 654 transitions. [2019-12-07 13:39:53,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:53,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-12-07 13:39:53,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:53,184 INFO L225 Difference]: With dead ends: 387 [2019-12-07 13:39:53,184 INFO L226 Difference]: Without dead ends: 209 [2019-12-07 13:39:53,185 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 13:39:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-12-07 13:39:53,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2019-12-07 13:39:53,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-12-07 13:39:53,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 353 transitions. [2019-12-07 13:39:53,196 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 353 transitions. Word has length 66 [2019-12-07 13:39:53,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:53,196 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 353 transitions. [2019-12-07 13:39:53,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:53,196 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 353 transitions. [2019-12-07 13:39:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-07 13:39:53,198 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:53,199 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:53,199 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:53,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:53,199 INFO L82 PathProgramCache]: Analyzing trace with hash 2130708720, now seen corresponding path program 1 times [2019-12-07 13:39:53,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:53,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232832891] [2019-12-07 13:39:53,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 13:39:53,232 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232832891] [2019-12-07 13:39:53,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:53,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:53,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595406547] [2019-12-07 13:39:53,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:53,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:53,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:53,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:53,234 INFO L87 Difference]: Start difference. First operand 209 states and 353 transitions. Second operand 3 states. [2019-12-07 13:39:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:53,318 INFO L93 Difference]: Finished difference Result 431 states and 728 transitions. [2019-12-07 13:39:53,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:53,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-12-07 13:39:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:53,319 INFO L225 Difference]: With dead ends: 431 [2019-12-07 13:39:53,319 INFO L226 Difference]: Without dead ends: 224 [2019-12-07 13:39:53,320 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 13:39:53,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-12-07 13:39:53,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2019-12-07 13:39:53,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-12-07 13:39:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 372 transitions. [2019-12-07 13:39:53,328 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 372 transitions. Word has length 77 [2019-12-07 13:39:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:53,329 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 372 transitions. [2019-12-07 13:39:53,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 372 transitions. [2019-12-07 13:39:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-07 13:39:53,330 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:53,330 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:53,331 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:53,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:53,331 INFO L82 PathProgramCache]: Analyzing trace with hash 599679090, now seen corresponding path program 1 times [2019-12-07 13:39:53,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:53,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193900783] [2019-12-07 13:39:53,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:39:53,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193900783] [2019-12-07 13:39:53,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:53,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:53,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132641979] [2019-12-07 13:39:53,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:53,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:53,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:53,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:53,367 INFO L87 Difference]: Start difference. First operand 222 states and 372 transitions. Second operand 3 states. [2019-12-07 13:39:53,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:53,461 INFO L93 Difference]: Finished difference Result 483 states and 815 transitions. [2019-12-07 13:39:53,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:53,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-12-07 13:39:53,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:53,463 INFO L225 Difference]: With dead ends: 483 [2019-12-07 13:39:53,463 INFO L226 Difference]: Without dead ends: 263 [2019-12-07 13:39:53,463 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 13:39:53,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2019-12-07 13:39:53,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 260. [2019-12-07 13:39:53,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2019-12-07 13:39:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 440 transitions. [2019-12-07 13:39:53,472 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 440 transitions. Word has length 77 [2019-12-07 13:39:53,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:53,473 INFO L462 AbstractCegarLoop]: Abstraction has 260 states and 440 transitions. [2019-12-07 13:39:53,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:53,473 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 440 transitions. [2019-12-07 13:39:53,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-12-07 13:39:53,474 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:53,474 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:53,474 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:53,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:53,474 INFO L82 PathProgramCache]: Analyzing trace with hash 46012538, now seen corresponding path program 1 times [2019-12-07 13:39:53,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:53,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591904693] [2019-12-07 13:39:53,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 13:39:53,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591904693] [2019-12-07 13:39:53,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:53,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:53,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545414417] [2019-12-07 13:39:53,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:53,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:53,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:53,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:53,501 INFO L87 Difference]: Start difference. First operand 260 states and 440 transitions. Second operand 3 states. [2019-12-07 13:39:53,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:53,588 INFO L93 Difference]: Finished difference Result 520 states and 880 transitions. [2019-12-07 13:39:53,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:53,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-12-07 13:39:53,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:53,591 INFO L225 Difference]: With dead ends: 520 [2019-12-07 13:39:53,591 INFO L226 Difference]: Without dead ends: 262 [2019-12-07 13:39:53,591 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 13:39:53,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2019-12-07 13:39:53,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2019-12-07 13:39:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2019-12-07 13:39:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 436 transitions. [2019-12-07 13:39:53,601 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 436 transitions. Word has length 78 [2019-12-07 13:39:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:53,601 INFO L462 AbstractCegarLoop]: Abstraction has 260 states and 436 transitions. [2019-12-07 13:39:53,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 436 transitions. [2019-12-07 13:39:53,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-12-07 13:39:53,603 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:53,603 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:53,603 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:53,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:53,603 INFO L82 PathProgramCache]: Analyzing trace with hash 792196695, now seen corresponding path program 1 times [2019-12-07 13:39:53,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:53,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757938517] [2019-12-07 13:39:53,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:39:53,637 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757938517] [2019-12-07 13:39:53,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:53,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:53,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294239505] [2019-12-07 13:39:53,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:53,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:53,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:53,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:53,638 INFO L87 Difference]: Start difference. First operand 260 states and 436 transitions. Second operand 3 states. [2019-12-07 13:39:53,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:53,734 INFO L93 Difference]: Finished difference Result 521 states and 873 transitions. [2019-12-07 13:39:53,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:53,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-12-07 13:39:53,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:53,736 INFO L225 Difference]: With dead ends: 521 [2019-12-07 13:39:53,736 INFO L226 Difference]: Without dead ends: 261 [2019-12-07 13:39:53,736 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 13:39:53,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-12-07 13:39:53,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 258. [2019-12-07 13:39:53,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-12-07 13:39:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 431 transitions. [2019-12-07 13:39:53,745 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 431 transitions. Word has length 78 [2019-12-07 13:39:53,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:53,745 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 431 transitions. [2019-12-07 13:39:53,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:53,745 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 431 transitions. [2019-12-07 13:39:53,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-07 13:39:53,746 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:53,746 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 13:39:53,747 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:53,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:53,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1125703201, now seen corresponding path program 1 times [2019-12-07 13:39:53,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:53,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092347439] [2019-12-07 13:39:53,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:53,774 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-12-07 13:39:53,775 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092347439] [2019-12-07 13:39:53,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:53,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:53,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594101372] [2019-12-07 13:39:53,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:53,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:53,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:53,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:53,776 INFO L87 Difference]: Start difference. First operand 258 states and 431 transitions. Second operand 3 states. [2019-12-07 13:39:53,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:53,849 INFO L93 Difference]: Finished difference Result 521 states and 869 transitions. [2019-12-07 13:39:53,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:53,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-12-07 13:39:53,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:53,851 INFO L225 Difference]: With dead ends: 521 [2019-12-07 13:39:53,851 INFO L226 Difference]: Without dead ends: 265 [2019-12-07 13:39:53,852 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 13:39:53,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-12-07 13:39:53,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2019-12-07 13:39:53,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-12-07 13:39:53,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 434 transitions. [2019-12-07 13:39:53,861 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 434 transitions. Word has length 86 [2019-12-07 13:39:53,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:53,861 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 434 transitions. [2019-12-07 13:39:53,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 434 transitions. [2019-12-07 13:39:53,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-12-07 13:39:53,863 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:53,863 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, 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 13:39:53,863 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:53,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:53,863 INFO L82 PathProgramCache]: Analyzing trace with hash 567889587, now seen corresponding path program 1 times [2019-12-07 13:39:53,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:53,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642572501] [2019-12-07 13:39:53,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 13:39:53,893 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642572501] [2019-12-07 13:39:53,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:53,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:53,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942854640] [2019-12-07 13:39:53,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:53,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:53,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:53,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:53,894 INFO L87 Difference]: Start difference. First operand 265 states and 434 transitions. Second operand 3 states. [2019-12-07 13:39:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:53,981 INFO L93 Difference]: Finished difference Result 557 states and 915 transitions. [2019-12-07 13:39:53,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:53,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2019-12-07 13:39:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:53,983 INFO L225 Difference]: With dead ends: 557 [2019-12-07 13:39:53,983 INFO L226 Difference]: Without dead ends: 294 [2019-12-07 13:39:53,983 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 13:39:53,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-12-07 13:39:53,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292. [2019-12-07 13:39:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2019-12-07 13:39:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 477 transitions. [2019-12-07 13:39:53,991 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 477 transitions. Word has length 91 [2019-12-07 13:39:53,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:53,991 INFO L462 AbstractCegarLoop]: Abstraction has 292 states and 477 transitions. [2019-12-07 13:39:53,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 477 transitions. [2019-12-07 13:39:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-12-07 13:39:53,992 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:53,992 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:53,992 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:53,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1362914425, now seen corresponding path program 1 times [2019-12-07 13:39:53,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:53,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278508226] [2019-12-07 13:39:53,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 13:39:54,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278508226] [2019-12-07 13:39:54,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:54,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:54,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679686293] [2019-12-07 13:39:54,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:54,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:54,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:54,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:54,021 INFO L87 Difference]: Start difference. First operand 292 states and 477 transitions. Second operand 3 states. [2019-12-07 13:39:54,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:54,122 INFO L93 Difference]: Finished difference Result 614 states and 1007 transitions. [2019-12-07 13:39:54,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:54,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2019-12-07 13:39:54,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:54,123 INFO L225 Difference]: With dead ends: 614 [2019-12-07 13:39:54,123 INFO L226 Difference]: Without dead ends: 324 [2019-12-07 13:39:54,124 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 13:39:54,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-12-07 13:39:54,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 317. [2019-12-07 13:39:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-12-07 13:39:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 515 transitions. [2019-12-07 13:39:54,132 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 515 transitions. Word has length 92 [2019-12-07 13:39:54,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:54,132 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 515 transitions. [2019-12-07 13:39:54,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:54,132 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 515 transitions. [2019-12-07 13:39:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-12-07 13:39:54,133 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:54,133 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, 3, 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] [2019-12-07 13:39:54,133 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:54,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:54,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1436512541, now seen corresponding path program 1 times [2019-12-07 13:39:54,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:54,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534107479] [2019-12-07 13:39:54,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 13:39:54,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534107479] [2019-12-07 13:39:54,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:54,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:54,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815264699] [2019-12-07 13:39:54,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:54,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:54,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:54,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:54,153 INFO L87 Difference]: Start difference. First operand 317 states and 515 transitions. Second operand 3 states. [2019-12-07 13:39:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:54,248 INFO L93 Difference]: Finished difference Result 634 states and 1030 transitions. [2019-12-07 13:39:54,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:54,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2019-12-07 13:39:54,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:54,250 INFO L225 Difference]: With dead ends: 634 [2019-12-07 13:39:54,250 INFO L226 Difference]: Without dead ends: 319 [2019-12-07 13:39:54,250 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 13:39:54,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-12-07 13:39:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 317. [2019-12-07 13:39:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-12-07 13:39:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 511 transitions. [2019-12-07 13:39:54,258 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 511 transitions. Word has length 92 [2019-12-07 13:39:54,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:54,258 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 511 transitions. [2019-12-07 13:39:54,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:54,258 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 511 transitions. [2019-12-07 13:39:54,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-12-07 13:39:54,259 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:54,259 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:54,259 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:54,259 INFO L82 PathProgramCache]: Analyzing trace with hash 167654383, now seen corresponding path program 1 times [2019-12-07 13:39:54,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:54,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910423995] [2019-12-07 13:39:54,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 13:39:54,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910423995] [2019-12-07 13:39:54,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:54,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:54,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369046281] [2019-12-07 13:39:54,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:54,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:54,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:54,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:54,279 INFO L87 Difference]: Start difference. First operand 317 states and 511 transitions. Second operand 3 states. [2019-12-07 13:39:54,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:54,382 INFO L93 Difference]: Finished difference Result 639 states and 1032 transitions. [2019-12-07 13:39:54,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:54,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-12-07 13:39:54,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:54,384 INFO L225 Difference]: With dead ends: 639 [2019-12-07 13:39:54,384 INFO L226 Difference]: Without dead ends: 324 [2019-12-07 13:39:54,384 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 13:39:54,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-12-07 13:39:54,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 317. [2019-12-07 13:39:54,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-12-07 13:39:54,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 506 transitions. [2019-12-07 13:39:54,393 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 506 transitions. Word has length 93 [2019-12-07 13:39:54,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:54,394 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 506 transitions. [2019-12-07 13:39:54,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:54,394 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 506 transitions. [2019-12-07 13:39:54,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-12-07 13:39:54,394 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:54,395 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:54,395 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:54,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:54,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1157674054, now seen corresponding path program 1 times [2019-12-07 13:39:54,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:54,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680517630] [2019-12-07 13:39:54,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:54,415 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-12-07 13:39:54,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680517630] [2019-12-07 13:39:54,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:54,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:54,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360639520] [2019-12-07 13:39:54,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:54,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:54,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:54,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:54,416 INFO L87 Difference]: Start difference. First operand 317 states and 506 transitions. Second operand 3 states. [2019-12-07 13:39:54,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:54,514 INFO L93 Difference]: Finished difference Result 653 states and 1043 transitions. [2019-12-07 13:39:54,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:54,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-12-07 13:39:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:54,516 INFO L225 Difference]: With dead ends: 653 [2019-12-07 13:39:54,516 INFO L226 Difference]: Without dead ends: 338 [2019-12-07 13:39:54,516 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 13:39:54,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-12-07 13:39:54,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 336. [2019-12-07 13:39:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-12-07 13:39:54,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 531 transitions. [2019-12-07 13:39:54,526 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 531 transitions. Word has length 94 [2019-12-07 13:39:54,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:54,527 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 531 transitions. [2019-12-07 13:39:54,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:54,527 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 531 transitions. [2019-12-07 13:39:54,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-12-07 13:39:54,528 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:54,528 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:54,528 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:54,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:54,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1585669148, now seen corresponding path program 1 times [2019-12-07 13:39:54,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:54,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670135636] [2019-12-07 13:39:54,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-12-07 13:39:54,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670135636] [2019-12-07 13:39:54,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:54,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:39:54,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080463772] [2019-12-07 13:39:54,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:54,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:54,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:54,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:54,548 INFO L87 Difference]: Start difference. First operand 336 states and 531 transitions. Second operand 3 states. [2019-12-07 13:39:54,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:54,637 INFO L93 Difference]: Finished difference Result 672 states and 1062 transitions. [2019-12-07 13:39:54,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:54,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2019-12-07 13:39:54,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:54,639 INFO L225 Difference]: With dead ends: 672 [2019-12-07 13:39:54,639 INFO L226 Difference]: Without dead ends: 338 [2019-12-07 13:39:54,640 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 13:39:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-12-07 13:39:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 336. [2019-12-07 13:39:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-12-07 13:39:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 525 transitions. [2019-12-07 13:39:54,653 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 525 transitions. Word has length 95 [2019-12-07 13:39:54,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:54,654 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 525 transitions. [2019-12-07 13:39:54,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:54,654 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 525 transitions. [2019-12-07 13:39:54,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-12-07 13:39:54,655 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:54,655 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:54,655 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:54,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:54,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1453456276, now seen corresponding path program 1 times [2019-12-07 13:39:54,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:54,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538115798] [2019-12-07 13:39:54,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:39:54,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538115798] [2019-12-07 13:39:54,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064362847] [2019-12-07 13:39:54,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:54,760 INFO L264 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 13:39:54,767 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:39:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:39:54,800 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:39:54,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:39:54,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:39:54,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:39:54,847 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-12-07 13:39:54,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:39:54,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5] total 6 [2019-12-07 13:39:54,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480418767] [2019-12-07 13:39:54,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:54,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:54,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:54,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:39:54,849 INFO L87 Difference]: Start difference. First operand 336 states and 525 transitions. Second operand 3 states. [2019-12-07 13:39:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:54,884 INFO L93 Difference]: Finished difference Result 669 states and 1047 transitions. [2019-12-07 13:39:54,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:54,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-12-07 13:39:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:54,888 INFO L225 Difference]: With dead ends: 669 [2019-12-07 13:39:54,888 INFO L226 Difference]: Without dead ends: 667 [2019-12-07 13:39:54,889 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 209 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:39:54,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-12-07 13:39:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 664. [2019-12-07 13:39:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2019-12-07 13:39:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 1041 transitions. [2019-12-07 13:39:54,915 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 1041 transitions. Word has length 108 [2019-12-07 13:39:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:54,915 INFO L462 AbstractCegarLoop]: Abstraction has 664 states and 1041 transitions. [2019-12-07 13:39:54,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 1041 transitions. [2019-12-07 13:39:54,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-12-07 13:39:54,916 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:54,916 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:55,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:55,117 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:55,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:55,118 INFO L82 PathProgramCache]: Analyzing trace with hash 864205558, now seen corresponding path program 1 times [2019-12-07 13:39:55,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:55,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188760714] [2019-12-07 13:39:55,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:55,124 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:39:55,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140871103] [2019-12-07 13:39:55,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:55,171 INFO L264 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:39:55,175 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:39:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-12-07 13:39:55,193 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:39:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-12-07 13:39:55,211 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188760714] [2019-12-07 13:39:55,211 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:39:55,211 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140871103] [2019-12-07 13:39:55,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:55,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 13:39:55,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689044401] [2019-12-07 13:39:55,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:39:55,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:55,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:39:55,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:39:55,213 INFO L87 Difference]: Start difference. First operand 664 states and 1041 transitions. Second operand 4 states. [2019-12-07 13:39:55,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:55,393 INFO L93 Difference]: Finished difference Result 1490 states and 2332 transitions. [2019-12-07 13:39:55,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:39:55,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2019-12-07 13:39:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:55,398 INFO L225 Difference]: With dead ends: 1490 [2019-12-07 13:39:55,398 INFO L226 Difference]: Without dead ends: 786 [2019-12-07 13:39:55,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 218 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 13:39:55,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-12-07 13:39:55,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 766. [2019-12-07 13:39:55,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2019-12-07 13:39:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1153 transitions. [2019-12-07 13:39:55,428 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1153 transitions. Word has length 111 [2019-12-07 13:39:55,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:55,428 INFO L462 AbstractCegarLoop]: Abstraction has 766 states and 1153 transitions. [2019-12-07 13:39:55,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:39:55,428 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1153 transitions. [2019-12-07 13:39:55,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-12-07 13:39:55,431 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:55,431 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:55,631 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:55,631 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:55,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:55,632 INFO L82 PathProgramCache]: Analyzing trace with hash 52748400, now seen corresponding path program 1 times [2019-12-07 13:39:55,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:55,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400016692] [2019-12-07 13:39:55,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:55,640 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:39:55,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130211696] [2019-12-07 13:39:55,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:55,691 INFO L264 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:39:55,695 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:39:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-12-07 13:39:55,724 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:39:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-12-07 13:39:55,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400016692] [2019-12-07 13:39:55,750 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:39:55,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130211696] [2019-12-07 13:39:55,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:55,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 13:39:55,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735383350] [2019-12-07 13:39:55,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:39:55,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:55,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:39:55,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:39:55,752 INFO L87 Difference]: Start difference. First operand 766 states and 1153 transitions. Second operand 6 states. [2019-12-07 13:39:55,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:55,958 INFO L93 Difference]: Finished difference Result 1598 states and 2399 transitions. [2019-12-07 13:39:55,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:39:55,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2019-12-07 13:39:55,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:55,962 INFO L225 Difference]: With dead ends: 1598 [2019-12-07 13:39:55,962 INFO L226 Difference]: Without dead ends: 834 [2019-12-07 13:39:55,963 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:39:55,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2019-12-07 13:39:55,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2019-12-07 13:39:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-12-07 13:39:55,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1141 transitions. [2019-12-07 13:39:55,983 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1141 transitions. Word has length 142 [2019-12-07 13:39:55,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:55,984 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1141 transitions. [2019-12-07 13:39:55,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:39:55,984 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1141 transitions. [2019-12-07 13:39:55,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-12-07 13:39:55,985 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:55,985 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:56,186 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:56,186 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:56,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:56,187 INFO L82 PathProgramCache]: Analyzing trace with hash -778906690, now seen corresponding path program 1 times [2019-12-07 13:39:56,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:56,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405573989] [2019-12-07 13:39:56,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:56,224 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2019-12-07 13:39:56,225 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405573989] [2019-12-07 13:39:56,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:56,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:39:56,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99653895] [2019-12-07 13:39:56,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:56,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:56,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:56,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:56,226 INFO L87 Difference]: Start difference. First operand 803 states and 1141 transitions. Second operand 3 states. [2019-12-07 13:39:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:56,364 INFO L93 Difference]: Finished difference Result 1608 states and 2284 transitions. [2019-12-07 13:39:56,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:56,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-12-07 13:39:56,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:56,370 INFO L225 Difference]: With dead ends: 1608 [2019-12-07 13:39:56,370 INFO L226 Difference]: Without dead ends: 807 [2019-12-07 13:39:56,372 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 13:39:56,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2019-12-07 13:39:56,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 803. [2019-12-07 13:39:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-12-07 13:39:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1127 transitions. [2019-12-07 13:39:56,410 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1127 transitions. Word has length 157 [2019-12-07 13:39:56,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:56,410 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1127 transitions. [2019-12-07 13:39:56,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:56,411 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1127 transitions. [2019-12-07 13:39:56,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-12-07 13:39:56,413 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:56,414 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:56,414 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:56,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:56,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1366719228, now seen corresponding path program 1 times [2019-12-07 13:39:56,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:56,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843437344] [2019-12-07 13:39:56,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:56,426 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:39:56,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982404808] [2019-12-07 13:39:56,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:56,483 INFO L264 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:39:56,487 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:39:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-12-07 13:39:56,514 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:39:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-12-07 13:39:56,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843437344] [2019-12-07 13:39:56,544 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:39:56,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982404808] [2019-12-07 13:39:56,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:56,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:39:56,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182680893] [2019-12-07 13:39:56,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:39:56,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:56,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:39:56,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:39:56,546 INFO L87 Difference]: Start difference. First operand 803 states and 1127 transitions. Second operand 4 states. [2019-12-07 13:39:56,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:56,705 INFO L93 Difference]: Finished difference Result 1241 states and 1741 transitions. [2019-12-07 13:39:56,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:39:56,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2019-12-07 13:39:56,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:56,708 INFO L225 Difference]: With dead ends: 1241 [2019-12-07 13:39:56,709 INFO L226 Difference]: Without dead ends: 819 [2019-12-07 13:39:56,709 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 358 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 13:39:56,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2019-12-07 13:39:56,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 803. [2019-12-07 13:39:56,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-12-07 13:39:56,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1125 transitions. [2019-12-07 13:39:56,731 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1125 transitions. Word has length 181 [2019-12-07 13:39:56,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:56,732 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1125 transitions. [2019-12-07 13:39:56,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:39:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1125 transitions. [2019-12-07 13:39:56,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-12-07 13:39:56,733 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:56,734 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:56,934 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:56,934 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:56,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:56,935 INFO L82 PathProgramCache]: Analyzing trace with hash -2072888836, now seen corresponding path program 1 times [2019-12-07 13:39:56,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:56,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572218901] [2019-12-07 13:39:56,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:56,942 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:39:56,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677113272] [2019-12-07 13:39:56,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:57,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:39:57,007 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:39:57,034 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2019-12-07 13:39:57,035 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:39:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2019-12-07 13:39:57,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572218901] [2019-12-07 13:39:57,058 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:39:57,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677113272] [2019-12-07 13:39:57,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:57,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 13:39:57,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346308597] [2019-12-07 13:39:57,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:57,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:57,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:57,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:57,060 INFO L87 Difference]: Start difference. First operand 803 states and 1125 transitions. Second operand 3 states. [2019-12-07 13:39:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:57,207 INFO L93 Difference]: Finished difference Result 1670 states and 2350 transitions. [2019-12-07 13:39:57,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:57,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-12-07 13:39:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:57,212 INFO L225 Difference]: With dead ends: 1670 [2019-12-07 13:39:57,212 INFO L226 Difference]: Without dead ends: 869 [2019-12-07 13:39:57,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 383 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 13:39:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2019-12-07 13:39:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 849. [2019-12-07 13:39:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2019-12-07 13:39:57,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1177 transitions. [2019-12-07 13:39:57,243 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1177 transitions. Word has length 193 [2019-12-07 13:39:57,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:57,243 INFO L462 AbstractCegarLoop]: Abstraction has 849 states and 1177 transitions. [2019-12-07 13:39:57,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:57,243 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1177 transitions. [2019-12-07 13:39:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-12-07 13:39:57,246 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:57,246 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:57,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:57,447 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:57,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:57,447 INFO L82 PathProgramCache]: Analyzing trace with hash -2001870155, now seen corresponding path program 1 times [2019-12-07 13:39:57,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:57,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925926193] [2019-12-07 13:39:57,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2019-12-07 13:39:57,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925926193] [2019-12-07 13:39:57,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:39:57,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:39:57,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476290135] [2019-12-07 13:39:57,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:39:57,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:39:57,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:39:57,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:39:57,495 INFO L87 Difference]: Start difference. First operand 849 states and 1177 transitions. Second operand 3 states. [2019-12-07 13:39:57,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:39:57,608 INFO L93 Difference]: Finished difference Result 1710 states and 2376 transitions. [2019-12-07 13:39:57,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:39:57,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-12-07 13:39:57,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:39:57,612 INFO L225 Difference]: With dead ends: 1710 [2019-12-07 13:39:57,612 INFO L226 Difference]: Without dead ends: 863 [2019-12-07 13:39:57,614 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 13:39:57,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2019-12-07 13:39:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 849. [2019-12-07 13:39:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2019-12-07 13:39:57,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1155 transitions. [2019-12-07 13:39:57,637 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1155 transitions. Word has length 217 [2019-12-07 13:39:57,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:39:57,637 INFO L462 AbstractCegarLoop]: Abstraction has 849 states and 1155 transitions. [2019-12-07 13:39:57,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:39:57,637 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1155 transitions. [2019-12-07 13:39:57,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-12-07 13:39:57,640 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:39:57,640 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:39:57,640 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:39:57,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:39:57,641 INFO L82 PathProgramCache]: Analyzing trace with hash 718986537, now seen corresponding path program 1 times [2019-12-07 13:39:57,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:39:57,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549912113] [2019-12-07 13:39:57,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:39:57,652 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:39:57,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414848774] [2019-12-07 13:39:57,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:39:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:39:57,720 INFO L264 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:39:57,722 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:39:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 442 proven. 25 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2019-12-07 13:39:57,757 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:39:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 442 proven. 25 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2019-12-07 13:39:57,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549912113] [2019-12-07 13:39:57,796 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:39:57,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414848774] [2019-12-07 13:39:57,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1122511788] [2019-12-07 13:39:57,815 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2019-12-07 13:39:57,815 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 13:39:57,819 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 13:39:57,824 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 13:39:57,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 13:40:17,357 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 13:40:17,715 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 131 [2019-12-07 13:40:18,039 WARN L192 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-12-07 13:40:18,963 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-07 13:40:22,508 WARN L192 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2019-12-07 13:40:23,161 WARN L192 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 13:40:23,562 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 13:40:23,977 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 13:40:24,367 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 13:40:24,868 WARN L192 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 13:40:25,610 WARN L192 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 137 [2019-12-07 13:40:26,038 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:40:26,472 WARN L192 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 13:40:27,273 WARN L192 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 138 [2019-12-07 13:40:27,978 WARN L192 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 140 [2019-12-07 13:40:29,198 WARN L192 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 182 DAG size of output: 144 [2019-12-07 13:40:29,716 WARN L192 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 139 [2019-12-07 13:40:30,196 WARN L192 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 13:40:30,702 WARN L192 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 13:40:31,144 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:40:31,561 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:40:31,562 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:40:31,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:40:31,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-12-07 13:40:31,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324213526] [2019-12-07 13:40:31,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:40:31,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:40:31,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:40:31,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=732, Invalid=3558, Unknown=0, NotChecked=0, Total=4290 [2019-12-07 13:40:31,565 INFO L87 Difference]: Start difference. First operand 849 states and 1155 transitions. Second operand 6 states. [2019-12-07 13:40:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:40:31,885 INFO L93 Difference]: Finished difference Result 2580 states and 3496 transitions. [2019-12-07 13:40:31,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 13:40:31,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2019-12-07 13:40:31,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:40:31,892 INFO L225 Difference]: With dead ends: 2580 [2019-12-07 13:40:31,892 INFO L226 Difference]: Without dead ends: 1691 [2019-12-07 13:40:31,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 634 SyntacticMatches, 16 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2496 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=744, Invalid=3812, Unknown=0, NotChecked=0, Total=4556 [2019-12-07 13:40:31,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2019-12-07 13:40:31,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1031. [2019-12-07 13:40:31,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2019-12-07 13:40:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1421 transitions. [2019-12-07 13:40:31,921 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1421 transitions. Word has length 238 [2019-12-07 13:40:31,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:40:31,921 INFO L462 AbstractCegarLoop]: Abstraction has 1031 states and 1421 transitions. [2019-12-07 13:40:31,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:40:31,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1421 transitions. [2019-12-07 13:40:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-12-07 13:40:31,924 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:40:31,924 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2019-12-07 13:40:32,124 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:40:32,125 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:40:32,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:40:32,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1445667654, now seen corresponding path program 1 times [2019-12-07 13:40:32,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:40:32,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839030761] [2019-12-07 13:40:32,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:40:32,144 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:40:32,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055420679] [2019-12-07 13:40:32,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:40:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:40:32,281 INFO L264 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 13:40:32,284 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:40:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 317 proven. 176 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-12-07 13:40:32,359 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:40:32,422 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 368 proven. 125 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-12-07 13:40:32,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839030761] [2019-12-07 13:40:32,422 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:40:32,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055420679] [2019-12-07 13:40:32,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [160076557] [2019-12-07 13:40:32,424 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2019-12-07 13:40:32,424 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 13:40:32,424 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 13:40:32,425 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 13:40:32,425 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 13:40:43,043 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 13:40:43,371 WARN L192 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 131 [2019-12-07 13:40:43,672 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-12-07 13:40:43,969 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2019-12-07 13:40:44,269 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 13:40:45,096 WARN L192 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 134 [2019-12-07 13:40:46,021 WARN L192 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 13:40:47,048 WARN L192 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:40:48,257 WARN L192 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 13:40:49,455 WARN L192 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 13:40:50,393 WARN L192 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 13:40:51,324 WARN L192 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2019-12-07 13:40:52,233 WARN L192 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 135 [2019-12-07 13:40:53,175 WARN L192 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-12-07 13:40:54,170 WARN L192 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 155 [2019-12-07 13:40:55,296 WARN L192 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2019-12-07 13:40:56,278 WARN L192 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2019-12-07 13:40:57,249 WARN L192 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 136 [2019-12-07 13:40:57,614 WARN L192 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 128 [2019-12-07 13:40:58,650 WARN L192 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 164 [2019-12-07 13:40:59,045 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 13:40:59,414 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 13:40:59,801 WARN L192 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 13:41:00,221 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 13:41:00,646 WARN L192 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:41:01,079 WARN L192 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 13:41:01,509 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 13:41:01,966 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 13:41:02,429 WARN L192 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2019-12-07 13:41:02,907 WARN L192 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2019-12-07 13:41:03,343 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 13:41:03,735 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 13:41:04,155 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 13:41:04,580 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 13:41:05,030 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:41:05,558 WARN L192 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 13:41:06,233 WARN L192 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 140 [2019-12-07 13:41:06,936 WARN L192 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 142 [2019-12-07 13:41:07,925 WARN L192 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 146 [2019-12-07 13:41:08,467 WARN L192 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 140 [2019-12-07 13:41:09,075 WARN L192 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 13:41:09,591 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 13:41:10,033 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:41:10,444 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:41:10,864 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 132 [2019-12-07 13:41:11,356 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:41:11,860 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 130 [2019-12-07 13:41:12,376 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 13:41:13,045 WARN L192 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 137 [2019-12-07 13:41:13,173 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:41:13,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:41:13,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-12-07 13:41:13,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19475267] [2019-12-07 13:41:13,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 13:41:13,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:41:13,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 13:41:13,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2019-12-07 13:41:13,175 INFO L87 Difference]: Start difference. First operand 1031 states and 1421 transitions. Second operand 7 states. [2019-12-07 13:41:13,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:41:13,689 INFO L93 Difference]: Finished difference Result 3027 states and 4168 transitions. [2019-12-07 13:41:13,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 13:41:13,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2019-12-07 13:41:13,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:41:13,694 INFO L225 Difference]: With dead ends: 3027 [2019-12-07 13:41:13,694 INFO L226 Difference]: Without dead ends: 1387 [2019-12-07 13:41:13,696 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 675 SyntacticMatches, 11 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1667 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=518, Invalid=3022, Unknown=0, NotChecked=0, Total=3540 [2019-12-07 13:41:13,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2019-12-07 13:41:13,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1316. [2019-12-07 13:41:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1316 states. [2019-12-07 13:41:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1788 transitions. [2019-12-07 13:41:13,726 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1788 transitions. Word has length 246 [2019-12-07 13:41:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:41:13,726 INFO L462 AbstractCegarLoop]: Abstraction has 1316 states and 1788 transitions. [2019-12-07 13:41:13,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 13:41:13,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1788 transitions. [2019-12-07 13:41:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-12-07 13:41:13,729 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:41:13,729 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:41:13,929 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:41:13,930 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:41:13,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:41:13,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1395767655, now seen corresponding path program 1 times [2019-12-07 13:41:13,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:41:13,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934094134] [2019-12-07 13:41:13,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:41:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:41:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2019-12-07 13:41:13,987 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934094134] [2019-12-07 13:41:13,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:41:13,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:41:13,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983929317] [2019-12-07 13:41:13,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:41:13,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:41:13,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:41:13,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:41:13,988 INFO L87 Difference]: Start difference. First operand 1316 states and 1788 transitions. Second operand 3 states. [2019-12-07 13:41:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:41:14,092 INFO L93 Difference]: Finished difference Result 2636 states and 3580 transitions. [2019-12-07 13:41:14,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:41:14,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2019-12-07 13:41:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:41:14,097 INFO L225 Difference]: With dead ends: 2636 [2019-12-07 13:41:14,097 INFO L226 Difference]: Without dead ends: 1322 [2019-12-07 13:41:14,098 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 13:41:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2019-12-07 13:41:14,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1316. [2019-12-07 13:41:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1316 states. [2019-12-07 13:41:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1758 transitions. [2019-12-07 13:41:14,127 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1758 transitions. Word has length 269 [2019-12-07 13:41:14,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:41:14,127 INFO L462 AbstractCegarLoop]: Abstraction has 1316 states and 1758 transitions. [2019-12-07 13:41:14,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:41:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1758 transitions. [2019-12-07 13:41:14,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-12-07 13:41:14,129 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:41:14,129 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:41:14,129 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:41:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:41:14,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1208712810, now seen corresponding path program 1 times [2019-12-07 13:41:14,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:41:14,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848020498] [2019-12-07 13:41:14,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:41:14,138 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:41:14,138 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639456636] [2019-12-07 13:41:14,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:41:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:41:14,203 INFO L264 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:41:14,206 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:41:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 616 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2019-12-07 13:41:14,248 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:41:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 616 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2019-12-07 13:41:14,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848020498] [2019-12-07 13:41:14,288 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:41:14,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639456636] [2019-12-07 13:41:14,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:41:14,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 13:41:14,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792740392] [2019-12-07 13:41:14,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:41:14,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:41:14,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:41:14,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:41:14,289 INFO L87 Difference]: Start difference. First operand 1316 states and 1758 transitions. Second operand 3 states. [2019-12-07 13:41:14,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:41:14,385 INFO L93 Difference]: Finished difference Result 2732 states and 3661 transitions. [2019-12-07 13:41:14,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:41:14,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2019-12-07 13:41:14,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:41:14,390 INFO L225 Difference]: With dead ends: 2732 [2019-12-07 13:41:14,390 INFO L226 Difference]: Without dead ends: 1418 [2019-12-07 13:41:14,391 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 597 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 13:41:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2019-12-07 13:41:14,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1412. [2019-12-07 13:41:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1412 states. [2019-12-07 13:41:14,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1863 transitions. [2019-12-07 13:41:14,420 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1863 transitions. Word has length 300 [2019-12-07 13:41:14,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:41:14,420 INFO L462 AbstractCegarLoop]: Abstraction has 1412 states and 1863 transitions. [2019-12-07 13:41:14,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:41:14,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1863 transitions. [2019-12-07 13:41:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-12-07 13:41:14,422 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:41:14,423 INFO L410 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:41:14,623 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:41:14,624 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:41:14,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:41:14,624 INFO L82 PathProgramCache]: Analyzing trace with hash 792506813, now seen corresponding path program 1 times [2019-12-07 13:41:14,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:41:14,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529618497] [2019-12-07 13:41:14,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:41:14,650 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:41:14,650 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092491355] [2019-12-07 13:41:14,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:41:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:41:14,731 INFO L264 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:41:14,733 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:41:14,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 492 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2019-12-07 13:41:14,827 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:41:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 446 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2019-12-07 13:41:15,077 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529618497] [2019-12-07 13:41:15,077 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:41:15,077 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092491355] [2019-12-07 13:41:15,077 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2017273644] [2019-12-07 13:41:15,079 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2019-12-07 13:41:15,079 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 13:41:15,080 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 13:41:15,080 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 13:41:15,080 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 13:41:47,043 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 13:41:47,376 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 131 [2019-12-07 13:41:47,678 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-12-07 13:41:47,970 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2019-12-07 13:41:48,270 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 13:41:49,112 WARN L192 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:41:49,762 WARN L192 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2019-12-07 13:41:50,443 WARN L192 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2019-12-07 13:41:51,158 WARN L192 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2019-12-07 13:41:51,943 WARN L192 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 146 [2019-12-07 13:41:52,818 WARN L192 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 149 [2019-12-07 13:41:53,561 WARN L192 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 152 [2019-12-07 13:41:54,363 WARN L192 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 155 [2019-12-07 13:41:54,937 WARN L192 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 132 [2019-12-07 13:41:55,496 WARN L192 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 137 [2019-12-07 13:41:55,866 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2019-12-07 13:41:56,886 WARN L192 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 157 [2019-12-07 13:41:57,775 WARN L192 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 160 [2019-12-07 13:41:58,999 WARN L192 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2019-12-07 13:41:59,798 WARN L192 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 133 [2019-12-07 13:42:00,182 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 128 [2019-12-07 13:42:01,094 WARN L192 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 166 [2019-12-07 13:42:01,500 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 13:42:01,877 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2019-12-07 13:42:02,287 WARN L192 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 13:42:02,674 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 13:42:03,070 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 13:42:03,495 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2019-12-07 13:42:03,920 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 132 [2019-12-07 13:42:04,333 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2019-12-07 13:42:04,782 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 132 [2019-12-07 13:42:05,291 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 13:42:05,830 WARN L192 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 13:42:06,349 WARN L192 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 13:42:06,894 WARN L192 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2019-12-07 13:42:07,326 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 129 [2019-12-07 13:42:07,850 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:42:08,344 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 13:42:08,835 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 13:42:09,354 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 13:42:09,888 WARN L192 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:42:10,357 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 130 [2019-12-07 13:42:11,005 WARN L192 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2019-12-07 13:42:11,575 WARN L192 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-12-07 13:42:12,012 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-12-07 13:42:12,508 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 127 [2019-12-07 13:42:13,100 WARN L192 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2019-12-07 13:42:13,561 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 13:42:13,985 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 13:42:14,466 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 13:42:14,916 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 13:42:15,374 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 13:42:15,830 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 13:42:16,334 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 13:42:16,822 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 13:42:17,321 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 13:42:18,023 WARN L192 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 137 [2019-12-07 13:42:18,595 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:42:19,117 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 13:42:19,649 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 128 [2019-12-07 13:42:20,185 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 130 [2019-12-07 13:42:20,687 WARN L192 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 136 [2019-12-07 13:42:21,242 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2019-12-07 13:42:21,848 WARN L192 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 13:42:22,426 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 13:42:23,010 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:42:23,509 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:42:23,510 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:42:23,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:42:23,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2019-12-07 13:42:23,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114650105] [2019-12-07 13:42:23,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:42:23,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:42:23,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:42:23,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=718, Invalid=4684, Unknown=0, NotChecked=0, Total=5402 [2019-12-07 13:42:23,513 INFO L87 Difference]: Start difference. First operand 1412 states and 1863 transitions. Second operand 8 states. [2019-12-07 13:42:23,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:42:23,594 INFO L93 Difference]: Finished difference Result 2892 states and 3805 transitions. [2019-12-07 13:42:23,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:42:23,595 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 330 [2019-12-07 13:42:23,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:42:23,602 INFO L225 Difference]: With dead ends: 2892 [2019-12-07 13:42:23,603 INFO L226 Difference]: Without dead ends: 2381 [2019-12-07 13:42:23,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 903 SyntacticMatches, 13 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2127 ImplicationChecksByTransitivity, 36.5s TimeCoverageRelationStatistics Valid=718, Invalid=4684, Unknown=0, NotChecked=0, Total=5402 [2019-12-07 13:42:23,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2019-12-07 13:42:23,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 1962. [2019-12-07 13:42:23,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2019-12-07 13:42:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2603 transitions. [2019-12-07 13:42:23,647 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2603 transitions. Word has length 330 [2019-12-07 13:42:23,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:42:23,648 INFO L462 AbstractCegarLoop]: Abstraction has 1962 states and 2603 transitions. [2019-12-07 13:42:23,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:42:23,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2603 transitions. [2019-12-07 13:42:23,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2019-12-07 13:42:23,650 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:42:23,651 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 9, 8, 8, 7, 7, 6, 6, 4, 4, 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] [2019-12-07 13:42:23,851 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:42:23,852 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:42:23,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:42:23,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1330235595, now seen corresponding path program 1 times [2019-12-07 13:42:23,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:42:23,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981398223] [2019-12-07 13:42:23,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:42:23,888 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:42:23,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471234114] [2019-12-07 13:42:23,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:42:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:42:23,977 INFO L264 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 13:42:23,981 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:42:24,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2603 backedges. 1068 proven. 691 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2019-12-07 13:42:24,179 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:42:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2603 backedges. 1176 proven. 583 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2019-12-07 13:42:24,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981398223] [2019-12-07 13:42:24,372 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:42:24,372 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471234114] [2019-12-07 13:42:24,372 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1632641599] [2019-12-07 13:42:24,374 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2019-12-07 13:42:24,374 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 13:42:24,374 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 13:42:24,374 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 13:42:24,374 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 13:43:32,022 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 13:43:32,367 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 132 [2019-12-07 13:43:32,676 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-12-07 13:43:32,964 WARN L192 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2019-12-07 13:43:33,280 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 13:43:34,158 WARN L192 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:43:34,829 WARN L192 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2019-12-07 13:43:35,613 WARN L192 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2019-12-07 13:43:36,618 WARN L192 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2019-12-07 13:43:37,481 WARN L192 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 146 [2019-12-07 13:43:38,438 WARN L192 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 149 [2019-12-07 13:43:39,245 WARN L192 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 152 [2019-12-07 13:43:40,022 WARN L192 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 155 [2019-12-07 13:43:40,677 WARN L192 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 132 [2019-12-07 13:43:41,424 WARN L192 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 137 [2019-12-07 13:43:41,962 WARN L192 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2019-12-07 13:43:43,018 WARN L192 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 157 [2019-12-07 13:43:43,923 WARN L192 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 160 [2019-12-07 13:43:44,827 WARN L192 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2019-12-07 13:43:45,572 WARN L192 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 133 [2019-12-07 13:43:46,328 WARN L192 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 136 [2019-12-07 13:43:47,238 WARN L192 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 166 [2019-12-07 13:43:47,604 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 13:43:47,963 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2019-12-07 13:43:48,341 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 13:43:48,729 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 13:43:49,126 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 13:43:49,560 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2019-12-07 13:43:50,021 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 132 [2019-12-07 13:43:50,537 WARN L192 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2019-12-07 13:43:51,105 WARN L192 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 132 [2019-12-07 13:43:51,618 WARN L192 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 13:43:52,325 WARN L192 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 13:43:52,940 WARN L192 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 13:43:53,568 WARN L192 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2019-12-07 13:43:54,011 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 129 [2019-12-07 13:43:54,466 WARN L192 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 13:43:54,942 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 13:43:55,419 WARN L192 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 13:43:55,907 WARN L192 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 13:43:56,390 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 13:43:56,859 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 130 [2019-12-07 13:43:57,366 WARN L192 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2019-12-07 13:43:57,869 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-12-07 13:43:58,322 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-12-07 13:43:58,860 WARN L192 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 127 [2019-12-07 13:43:59,555 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2019-12-07 13:44:00,368 WARN L192 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 129 [2019-12-07 13:44:00,998 WARN L192 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 129 [2019-12-07 13:44:01,515 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 130 [2019-12-07 13:44:02,124 WARN L192 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 133 [2019-12-07 13:44:02,857 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 129 [2019-12-07 13:44:03,323 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 129 [2019-12-07 13:44:03,826 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 136 [2019-12-07 13:44:04,320 WARN L192 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 139 [2019-12-07 13:44:04,795 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-12-07 13:44:05,506 WARN L192 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 138 [2019-12-07 13:44:06,066 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 142 [2019-12-07 13:44:06,602 WARN L192 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 145 [2019-12-07 13:44:07,138 WARN L192 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 128 [2019-12-07 13:44:07,694 WARN L192 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 130 [2019-12-07 13:44:08,230 WARN L192 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 136 [2019-12-07 13:44:08,905 WARN L192 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2019-12-07 13:44:09,883 WARN L192 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 148 [2019-12-07 13:44:10,503 WARN L192 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 151 [2019-12-07 13:44:11,126 WARN L192 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 129 [2019-12-07 13:44:11,636 WARN L192 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 129 [2019-12-07 13:44:12,170 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 133 [2019-12-07 13:44:12,300 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:44:12,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:44:12,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2019-12-07 13:44:12,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583941919] [2019-12-07 13:44:12,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 13:44:12,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:44:12,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 13:44:12,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=838, Invalid=5168, Unknown=0, NotChecked=0, Total=6006 [2019-12-07 13:44:12,303 INFO L87 Difference]: Start difference. First operand 1962 states and 2603 transitions. Second operand 11 states. [2019-12-07 13:44:13,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:44:13,367 INFO L93 Difference]: Finished difference Result 4622 states and 6024 transitions. [2019-12-07 13:44:13,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 13:44:13,368 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 468 [2019-12-07 13:44:13,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:44:13,376 INFO L225 Difference]: With dead ends: 4622 [2019-12-07 13:44:13,376 INFO L226 Difference]: Without dead ends: 2548 [2019-12-07 13:44:13,379 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 1326 SyntacticMatches, 9 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3515 ImplicationChecksByTransitivity, 40.7s TimeCoverageRelationStatistics Valid=958, Invalid=6524, Unknown=0, NotChecked=0, Total=7482 [2019-12-07 13:44:13,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2019-12-07 13:44:13,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 917. [2019-12-07 13:44:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2019-12-07 13:44:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1187 transitions. [2019-12-07 13:44:13,407 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1187 transitions. Word has length 468 [2019-12-07 13:44:13,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:44:13,408 INFO L462 AbstractCegarLoop]: Abstraction has 917 states and 1187 transitions. [2019-12-07 13:44:13,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 13:44:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1187 transitions. [2019-12-07 13:44:13,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2019-12-07 13:44:13,414 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:44:13,414 INFO L410 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 21, 21, 21, 19, 19, 17, 17, 15, 15, 13, 13, 13, 13, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:44:13,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:44:13,615 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:44:13,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:44:13,616 INFO L82 PathProgramCache]: Analyzing trace with hash 374750639, now seen corresponding path program 1 times [2019-12-07 13:44:13,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:44:13,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723004788] [2019-12-07 13:44:13,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:44:13,640 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:44:13,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313253327] [2019-12-07 13:44:13,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:44:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:44:13,746 INFO L264 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:44:13,751 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:44:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5098 backedges. 2749 proven. 0 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2019-12-07 13:44:13,911 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:44:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 5098 backedges. 2749 proven. 0 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2019-12-07 13:44:14,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723004788] [2019-12-07 13:44:14,071 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:44:14,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313253327] [2019-12-07 13:44:14,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:44:14,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:44:14,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263914787] [2019-12-07 13:44:14,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:44:14,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:44:14,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:44:14,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:44:14,073 INFO L87 Difference]: Start difference. First operand 917 states and 1187 transitions. Second operand 4 states. [2019-12-07 13:44:14,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:44:14,165 INFO L93 Difference]: Finished difference Result 1834 states and 2374 transitions. [2019-12-07 13:44:14,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:44:14,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 632 [2019-12-07 13:44:14,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:44:14,168 INFO L225 Difference]: With dead ends: 1834 [2019-12-07 13:44:14,168 INFO L226 Difference]: Without dead ends: 919 [2019-12-07 13:44:14,169 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1262 GetRequests, 1260 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 13:44:14,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2019-12-07 13:44:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 917. [2019-12-07 13:44:14,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2019-12-07 13:44:14,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1179 transitions. [2019-12-07 13:44:14,192 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1179 transitions. Word has length 632 [2019-12-07 13:44:14,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:44:14,192 INFO L462 AbstractCegarLoop]: Abstraction has 917 states and 1179 transitions. [2019-12-07 13:44:14,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:44:14,192 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1179 transitions. [2019-12-07 13:44:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2019-12-07 13:44:14,195 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:44:14,195 INFO L410 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 22, 22, 22, 20, 20, 18, 18, 16, 16, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-12-07 13:44:14,396 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:44:14,396 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:44:14,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:44:14,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1989818253, now seen corresponding path program 2 times [2019-12-07 13:44:14,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:44:14,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364077132] [2019-12-07 13:44:14,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:44:14,406 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:44:14,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701093475] [2019-12-07 13:44:14,407 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:44:14,531 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2019-12-07 13:44:14,531 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:44:14,532 INFO L264 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:44:14,539 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:44:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5539 backedges. 3065 proven. 0 refuted. 0 times theorem prover too weak. 2474 trivial. 0 not checked. [2019-12-07 13:44:14,716 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:44:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5539 backedges. 3065 proven. 0 refuted. 0 times theorem prover too weak. 2474 trivial. 0 not checked. [2019-12-07 13:44:14,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364077132] [2019-12-07 13:44:14,895 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:44:14,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701093475] [2019-12-07 13:44:14,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:44:14,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:44:14,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603833968] [2019-12-07 13:44:14,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:44:14,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:44:14,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:44:14,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:44:14,896 INFO L87 Difference]: Start difference. First operand 917 states and 1179 transitions. Second operand 4 states. [2019-12-07 13:44:15,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:44:15,003 INFO L93 Difference]: Finished difference Result 1848 states and 2377 transitions. [2019-12-07 13:44:15,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:44:15,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 660 [2019-12-07 13:44:15,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:44:15,006 INFO L225 Difference]: With dead ends: 1848 [2019-12-07 13:44:15,006 INFO L226 Difference]: Without dead ends: 929 [2019-12-07 13:44:15,007 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1316 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 13:44:15,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2019-12-07 13:44:15,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2019-12-07 13:44:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2019-12-07 13:44:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1193 transitions. [2019-12-07 13:44:15,030 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1193 transitions. Word has length 660 [2019-12-07 13:44:15,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:44:15,031 INFO L462 AbstractCegarLoop]: Abstraction has 929 states and 1193 transitions. [2019-12-07 13:44:15,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:44:15,031 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1193 transitions. [2019-12-07 13:44:15,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2019-12-07 13:44:15,034 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:44:15,034 INFO L410 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 22, 22, 22, 20, 20, 18, 18, 16, 16, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:44:15,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:44:15,235 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:44:15,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:44:15,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1225682785, now seen corresponding path program 1 times [2019-12-07 13:44:15,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:44:15,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945741149] [2019-12-07 13:44:15,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:44:15,270 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 13:44:15,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201260379] [2019-12-07 13:44:15,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:44:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:44:15,383 INFO L264 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:44:15,388 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:44:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3075 proven. 0 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2019-12-07 13:44:15,571 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:44:15,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5681 backedges. 3075 proven. 0 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2019-12-07 13:44:15,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945741149] [2019-12-07 13:44:15,754 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 13:44:15,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201260379] [2019-12-07 13:44:15,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:44:15,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:44:15,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357748699] [2019-12-07 13:44:15,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:44:15,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:44:15,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:44:15,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:44:15,755 INFO L87 Difference]: Start difference. First operand 929 states and 1193 transitions. Second operand 4 states. [2019-12-07 13:44:15,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:44:15,850 INFO L93 Difference]: Finished difference Result 1407 states and 1806 transitions. [2019-12-07 13:44:15,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:44:15,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 672 [2019-12-07 13:44:15,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:44:15,851 INFO L225 Difference]: With dead ends: 1407 [2019-12-07 13:44:15,851 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:44:15,852 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1342 GetRequests, 1340 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 13:44:15,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:44:15,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:44:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:44:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:44:15,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 672 [2019-12-07 13:44:15,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:44:15,852 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:44:15,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:44:15,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:44:15,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:44:16,053 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:44:16,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 13:44:16,206 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 168 [2019-12-07 13:44:16,353 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 168 [2019-12-07 13:44:16,569 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 172 [2019-12-07 13:44:16,739 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 168 [2019-12-07 13:44:16,940 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 49 [2019-12-07 13:44:17,413 WARN L192 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 62 [2019-12-07 13:44:17,634 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 44 [2019-12-07 13:44:18,116 WARN L192 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 62 [2019-12-07 13:44:18,246 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 44 [2019-12-07 13:44:18,374 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2019-12-07 13:44:18,861 WARN L192 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 57 [2019-12-07 13:44:19,051 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2019-12-07 13:44:19,158 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2019-12-07 13:44:19,751 WARN L192 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 65 [2019-12-07 13:44:19,907 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 44 [2019-12-07 13:44:20,418 WARN L192 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 45 [2019-12-07 13:44:20,981 WARN L192 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2019-12-07 13:44:21,624 WARN L192 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2019-12-07 13:44:23,592 WARN L192 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 150 DAG size of output: 62 [2019-12-07 13:44:23,713 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2019-12-07 13:44:23,870 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 44 [2019-12-07 13:44:23,973 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2019-12-07 13:44:24,533 WARN L192 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 33 [2019-12-07 13:44:24,536 INFO L246 CegarLoopResult]: For program point L630(lines 630 634) no Hoare annotation was computed. [2019-12-07 13:44:24,536 INFO L246 CegarLoopResult]: For program point L399(lines 399 405) no Hoare annotation was computed. [2019-12-07 13:44:24,536 INFO L242 CegarLoopResult]: At program point L201(lines 201 592) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672)))) (or (and (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8673)) .cse0) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse0 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))))) [2019-12-07 13:44:24,536 INFO L246 CegarLoopResult]: For program point L168(lines 168 603) no Hoare annotation was computed. [2019-12-07 13:44:24,536 INFO L246 CegarLoopResult]: For program point L135(lines 135 614) no Hoare annotation was computed. [2019-12-07 13:44:24,536 INFO L242 CegarLoopResult]: At program point L102(lines 102 625) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse2 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse4 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse3 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (and .cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481)) .cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657)) .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (and .cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448) .cse4 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0) (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (= ULTIMATE.start_ssl3_accept_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) (not .cse4)) (and .cse1 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464)))) [2019-12-07 13:44:24,537 INFO L246 CegarLoopResult]: For program point L466(lines 466 470) no Hoare annotation was computed. [2019-12-07 13:44:24,537 INFO L242 CegarLoopResult]: At program point L202(lines 198 593) the Hoare annotation is: (let ((.cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 12292)) (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672) .cse0 (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)))) [2019-12-07 13:44:24,537 INFO L246 CegarLoopResult]: For program point L501-2(lines 209 587) no Hoare annotation was computed. [2019-12-07 13:44:24,537 INFO L246 CegarLoopResult]: For program point L237(lines 237 242) no Hoare annotation was computed. [2019-12-07 13:44:24,537 INFO L246 CegarLoopResult]: For program point L171(lines 171 602) no Hoare annotation was computed. [2019-12-07 13:44:24,537 INFO L246 CegarLoopResult]: For program point L138(lines 138 613) no Hoare annotation was computed. [2019-12-07 13:44:24,537 INFO L246 CegarLoopResult]: For program point L105(lines 105 624) no Hoare annotation was computed. [2019-12-07 13:44:24,538 INFO L242 CegarLoopResult]: At program point L172(lines 168 603) the Hoare annotation is: (let ((.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse7 (< ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse5 .cse9 .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse6 .cse7 .cse8))) [2019-12-07 13:44:24,538 INFO L242 CegarLoopResult]: At program point L139(lines 135 614) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse5 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse7 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and (or (and .cse0 .cse1 (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse5 .cse6 .cse7)) (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)))) [2019-12-07 13:44:24,538 INFO L246 CegarLoopResult]: For program point L272(lines 272 276) no Hoare annotation was computed. [2019-12-07 13:44:24,538 INFO L246 CegarLoopResult]: For program point L306-2(lines 209 587) no Hoare annotation was computed. [2019-12-07 13:44:24,538 INFO L246 CegarLoopResult]: For program point L174(lines 174 601) no Hoare annotation was computed. [2019-12-07 13:44:24,538 INFO L246 CegarLoopResult]: For program point L141(lines 141 612) no Hoare annotation was computed. [2019-12-07 13:44:24,539 INFO L246 CegarLoopResult]: For program point L108(lines 108 623) no Hoare annotation was computed. [2019-12-07 13:44:24,539 INFO L246 CegarLoopResult]: For program point L439-1(lines 439 451) no Hoare annotation was computed. [2019-12-07 13:44:24,539 INFO L242 CegarLoopResult]: At program point L407(lines 398 418) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3)) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse7 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse5 .cse6 .cse7 .cse8))) [2019-12-07 13:44:24,539 INFO L246 CegarLoopResult]: For program point L341-2(lines 209 587) no Hoare annotation was computed. [2019-12-07 13:44:24,539 INFO L249 CegarLoopResult]: At program point L672(lines 64 674) the Hoare annotation is: true [2019-12-07 13:44:24,539 INFO L246 CegarLoopResult]: For program point L540(lines 540 545) no Hoare annotation was computed. [2019-12-07 13:44:24,539 INFO L246 CegarLoopResult]: For program point L177(lines 177 600) no Hoare annotation was computed. [2019-12-07 13:44:24,539 INFO L246 CegarLoopResult]: For program point L144(lines 144 611) no Hoare annotation was computed. [2019-12-07 13:44:24,539 INFO L246 CegarLoopResult]: For program point L111(lines 111 622) no Hoare annotation was computed. [2019-12-07 13:44:24,539 INFO L246 CegarLoopResult]: For program point L442(lines 442 447) no Hoare annotation was computed. [2019-12-07 13:44:24,540 INFO L242 CegarLoopResult]: At program point L178(lines 174 601) the Hoare annotation is: (let ((.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse7 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse8 (< ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse6 .cse7 .cse8 .cse9) (and .cse2 .cse3 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse4 .cse5 .cse6 .cse0 .cse7 .cse8 .cse9 .cse1 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))))) [2019-12-07 13:44:24,540 INFO L242 CegarLoopResult]: At program point L145(lines 141 612) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse7 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) .cse5 .cse6 .cse7 .cse8 .cse9))) [2019-12-07 13:44:24,540 INFO L246 CegarLoopResult]: For program point L410(lines 410 414) no Hoare annotation was computed. [2019-12-07 13:44:24,540 INFO L242 CegarLoopResult]: At program point L212(lines 105 624) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448)))) (or (and (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448) (or (and .cse0 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and .cse0 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0)))) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8673)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8656)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481)) .cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)) (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))))) [2019-12-07 13:44:24,540 INFO L246 CegarLoopResult]: For program point L180(lines 180 599) no Hoare annotation was computed. [2019-12-07 13:44:24,540 INFO L246 CegarLoopResult]: For program point L147(lines 147 610) no Hoare annotation was computed. [2019-12-07 13:44:24,541 INFO L246 CegarLoopResult]: For program point L114(lines 114 621) no Hoare annotation was computed. [2019-12-07 13:44:24,541 INFO L246 CegarLoopResult]: For program point L478(lines 478 482) no Hoare annotation was computed. [2019-12-07 13:44:24,541 INFO L246 CegarLoopResult]: For program point L83-1(lines 64 674) no Hoare annotation was computed. [2019-12-07 13:44:24,541 INFO L246 CegarLoopResult]: For program point L183(lines 183 598) no Hoare annotation was computed. [2019-12-07 13:44:24,541 INFO L246 CegarLoopResult]: For program point L150(lines 150 609) no Hoare annotation was computed. [2019-12-07 13:44:24,541 INFO L246 CegarLoopResult]: For program point L117(lines 117 620) no Hoare annotation was computed. [2019-12-07 13:44:24,541 INFO L246 CegarLoopResult]: For program point L349(lines 349 380) no Hoare annotation was computed. [2019-12-07 13:44:24,541 INFO L242 CegarLoopResult]: At program point L184(lines 180 599) the Hoare annotation is: (let ((.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse7 (< ULTIMATE.start_ssl3_accept_~s__state~0 8640)) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse5 .cse9 .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse6 .cse7 .cse8))) [2019-12-07 13:44:24,542 INFO L242 CegarLoopResult]: At program point L151(lines 147 610) the Hoare annotation is: (let ((.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse7 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse5 .cse9 .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse6 .cse7 .cse8))) [2019-12-07 13:44:24,542 INFO L246 CegarLoopResult]: For program point L217-2(lines 209 587) no Hoare annotation was computed. [2019-12-07 13:44:24,542 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 13:44:24,542 INFO L246 CegarLoopResult]: For program point L186(lines 186 597) no Hoare annotation was computed. [2019-12-07 13:44:24,542 INFO L246 CegarLoopResult]: For program point L153(lines 153 608) no Hoare annotation was computed. [2019-12-07 13:44:24,542 INFO L246 CegarLoopResult]: For program point L120(lines 120 619) no Hoare annotation was computed. [2019-12-07 13:44:24,542 INFO L246 CegarLoopResult]: For program point L550(lines 550 554) no Hoare annotation was computed. [2019-12-07 13:44:24,542 INFO L246 CegarLoopResult]: For program point L352(lines 352 379) no Hoare annotation was computed. [2019-12-07 13:44:24,542 INFO L246 CegarLoopResult]: For program point L352-1(lines 352 379) no Hoare annotation was computed. [2019-12-07 13:44:24,543 INFO L242 CegarLoopResult]: At program point L121(lines 117 620) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse6 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse7 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) .cse2 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))))) [2019-12-07 13:44:24,543 INFO L242 CegarLoopResult]: At program point L551(lines 64 674) the Hoare annotation is: false [2019-12-07 13:44:24,543 INFO L246 CegarLoopResult]: For program point L353(lines 353 376) no Hoare annotation was computed. [2019-12-07 13:44:24,543 INFO L246 CegarLoopResult]: For program point L254(lines 254 266) no Hoare annotation was computed. [2019-12-07 13:44:24,543 INFO L246 CegarLoopResult]: For program point L255(lines 255 260) no Hoare annotation was computed. [2019-12-07 13:44:24,543 INFO L246 CegarLoopResult]: For program point L189(lines 189 596) no Hoare annotation was computed. [2019-12-07 13:44:24,543 INFO L246 CegarLoopResult]: For program point L156(lines 156 607) no Hoare annotation was computed. [2019-12-07 13:44:24,543 INFO L242 CegarLoopResult]: At program point L123(lines 123 618) the Hoare annotation is: (let ((.cse1 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse5 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse4 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (or (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576) .cse2) (and (or (and .cse3 .cse4) (and .cse4 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0))) (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448)) (and (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (and .cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) .cse0 .cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657)) .cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497)) .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (and .cse5 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0) (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and .cse3 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464)) (and .cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 12292)) (not .cse4)) (= ULTIMATE.start_ssl3_accept_~s__state~0 3))) [2019-12-07 13:44:24,543 INFO L246 CegarLoopResult]: For program point L388(lines 388 419) no Hoare annotation was computed. [2019-12-07 13:44:24,543 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 13:44:24,543 INFO L246 CegarLoopResult]: For program point L289-2(lines 209 587) no Hoare annotation was computed. [2019-12-07 13:44:24,544 INFO L242 CegarLoopResult]: At program point L190(lines 186 597) the Hoare annotation is: (let ((.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse5 (< ULTIMATE.start_ssl3_accept_~s__state~0 8656)) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse7 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse7 .cse8 .cse9) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse0 .cse8 .cse9 .cse1 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))))) [2019-12-07 13:44:24,544 INFO L242 CegarLoopResult]: At program point L157(lines 153 608) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3)) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse7 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse5 .cse6 .cse7 .cse8))) [2019-12-07 13:44:24,544 INFO L246 CegarLoopResult]: For program point L521(lines 521 526) no Hoare annotation was computed. [2019-12-07 13:44:24,544 INFO L246 CegarLoopResult]: For program point L389(lines 389 395) no Hoare annotation was computed. [2019-12-07 13:44:24,544 INFO L246 CegarLoopResult]: For program point L356(lines 356 375) no Hoare annotation was computed. [2019-12-07 13:44:24,544 INFO L242 CegarLoopResult]: At program point L588(lines 99 656) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse2 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse4 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse3 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (and .cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481)) .cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657)) .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (and .cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448) .cse4 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0) (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (= ULTIMATE.start_ssl3_accept_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) (not .cse4)) (and .cse1 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464)))) [2019-12-07 13:44:24,544 INFO L246 CegarLoopResult]: For program point L555(lines 555 559) no Hoare annotation was computed. [2019-12-07 13:44:24,544 INFO L246 CegarLoopResult]: For program point L489(lines 489 493) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L357-2(lines 356 373) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L192(lines 192 595) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L159(lines 159 606) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L126(lines 126 617) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L457(lines 457 461) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L325-1(lines 325 334) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L249 CegarLoopResult]: At program point L657(lines 98 658) the Hoare annotation is: true [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L195(lines 195 594) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L162(lines 162 605) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L129(lines 129 616) no Hoare annotation was computed. [2019-12-07 13:44:24,545 INFO L246 CegarLoopResult]: For program point L229(lines 229 246) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L242 CegarLoopResult]: At program point L196(lines 192 595) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8673))) (.cse1 (< 8641 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 12292)))) (or (and (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672) (or (and .cse0 .cse1 .cse2 (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and .cse0 .cse1 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse2 .cse3))) (and .cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse1 .cse2 .cse3 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))))) [2019-12-07 13:44:24,546 INFO L242 CegarLoopResult]: At program point L163(lines 159 606) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3)) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse6 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse7 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse5 .cse6 .cse7 .cse8))) [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L229-2(lines 209 587) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L626(lines 626 654) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L329(lines 329 333) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 668) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L627(lines 627 651) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L462(lines 462 473) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L528-2(lines 209 587) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L429(lines 429 433) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L242 CegarLoopResult]: At program point L363(lines 346 381) the Hoare annotation is: (let ((.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse7 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse5 .cse9 .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 .cse6 .cse7 .cse8))) [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L231(lines 231 236) no Hoare annotation was computed. [2019-12-07 13:44:24,546 INFO L246 CegarLoopResult]: For program point L198(lines 198 593) no Hoare annotation was computed. [2019-12-07 13:44:24,547 INFO L246 CegarLoopResult]: For program point L165(lines 165 604) no Hoare annotation was computed. [2019-12-07 13:44:24,547 INFO L246 CegarLoopResult]: For program point L132(lines 132 615) no Hoare annotation was computed. [2019-12-07 13:44:24,547 INFO L242 CegarLoopResult]: At program point L99-2(lines 99 656) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse2 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (.cse4 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0)) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse3 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0))) (or (and (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (and .cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481)) .cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657)) .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (and .cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448) .cse4 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0) (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (= ULTIMATE.start_ssl3_accept_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) (not .cse4)) (and .cse1 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464)))) [2019-12-07 13:44:24,547 INFO L246 CegarLoopResult]: For program point L628(lines 628 637) no Hoare annotation was computed. [2019-12-07 13:44:24,547 INFO L246 CegarLoopResult]: For program point L628-2(lines 627 649) no Hoare annotation was computed. [2019-12-07 13:44:24,547 INFO L242 CegarLoopResult]: At program point L397(lines 388 419) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3)) (.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse7 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse8 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and .cse0 .cse1 .cse2 .cse3 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse4 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .cse5 .cse6 .cse7 .cse8))) [2019-12-07 13:44:24,547 INFO L242 CegarLoopResult]: At program point L166(lines 165 604) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464)) (.cse1 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (or (and .cse0 .cse1 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448)) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse0 (not .cse1)))) [2019-12-07 13:44:24,547 INFO L242 CegarLoopResult]: At program point L133(lines 126 617) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561))) (.cse1 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8544))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3)) (.cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse5 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8497))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8560))) (.cse7 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8496))) (.cse8 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (.cse9 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse10 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (not (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10)) (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)))) [2019-12-07 13:44:24,547 INFO L246 CegarLoopResult]: For program point L365(lines 365 369) no Hoare annotation was computed. [2019-12-07 13:44:24,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:44:24 BoogieIcfgContainer [2019-12-07 13:44:24,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:44:24,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:44:24,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:44:24,582 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:44:24,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:52" (3/4) ... [2019-12-07 13:44:24,585 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:44:24,600 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2019-12-07 13:44:24,600 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 13:44:24,601 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 13:44:24,689 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ac8f988d-44a6-45f0-95f2-b73f6487a1be/bin/utaipan/witness.graphml [2019-12-07 13:44:24,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:44:24,690 INFO L168 Benchmark]: Toolchain (without parser) took 273154.34 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 443.0 MB). Free memory was 940.7 MB in the beginning and 896.1 MB in the end (delta: 44.6 MB). Peak memory consumption was 487.6 MB. Max. memory is 11.5 GB. [2019-12-07 13:44:24,690 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:44:24,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:44:24,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:44:24,691 INFO L168 Benchmark]: Boogie Preprocessor took 25.32 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 13:44:24,691 INFO L168 Benchmark]: RCFGBuilder took 542.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.7 MB). Peak memory consumption was 87.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:44:24,692 INFO L168 Benchmark]: TraceAbstraction took 272183.83 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 331.9 MB). Free memory was 1.0 GB in the beginning and 911.4 MB in the end (delta: 96.0 MB). Peak memory consumption was 662.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:44:24,692 INFO L168 Benchmark]: Witness Printer took 107.41 ms. Allocated memory is still 1.5 GB. Free memory was 911.4 MB in the beginning and 896.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:44:24,693 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 255.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.32 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 542.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.7 MB). Peak memory consumption was 87.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 272183.83 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 331.9 MB). Free memory was 1.0 GB in the beginning and 911.4 MB in the end (delta: 96.0 MB). Peak memory consumption was 662.1 MB. Max. memory is 11.5 GB. * Witness Printer took 107.41 ms. Allocated memory is still 1.5 GB. Free memory was 911.4 MB in the beginning and 896.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 668]: 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: 126]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) || (((((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && 0 == blastFlag) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) || (((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545))) && 8448 <= s__state) - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: (((((((1 == blastFlag && s__state == 8496) || (((((((((s__state <= 8672 && !(s__state == 8561)) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8657)) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 8497)) && !(s__state == 8480)) && !(s__state == 8545))) || (((8448 <= s__state && s__state <= 8448) && 0 == s__hit) && 3 == s__s3__tmp__next_state___0)) || ((s__state <= 8672 && 8672 <= s__state) && 3 == blastFlag)) || s__state == 3) || ((s__s3__tmp__next_state___0 <= 8576 && 2 == blastFlag) && s__state <= 8576)) || (blastFlag <= 3 && !(0 == s__hit))) || (((!(s__state == 8448) && 0 == blastFlag) && 8448 <= s__state) && s__state <= 8464) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (((s__state <= 8464 && 0 == s__hit) && 3 == s__s3__tmp__next_state___0) || (((s__s3__tmp__next_state___0 <= 8576 && 2 == blastFlag) && 8448 <= s__state) && s__state <= 8448)) || ((blastFlag <= 3 && s__state <= 8464) && !(0 == s__hit)) - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 8561) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(0 == s__hit)) || (((((((((((!(s__state == 8561) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && 8448 <= s__state) && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: (((((((1 == blastFlag && s__state == 8496) || (((((((((s__state <= 8672 && !(s__state == 8561)) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8657)) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 8497)) && !(s__state == 8480)) && !(s__state == 8545))) || (((8448 <= s__state && s__state <= 8448) && 0 == s__hit) && 3 == s__s3__tmp__next_state___0)) || ((s__state <= 8672 && 8672 <= s__state) && 3 == blastFlag)) || s__state == 3) || ((s__s3__tmp__next_state___0 <= 8576 && 2 == blastFlag) && s__state <= 8576)) || (blastFlag <= 3 && !(0 == s__hit))) || (((!(s__state == 8448) && 0 == blastFlag) && 8448 <= s__state) && s__state <= 8464) - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 8561) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(0 == s__hit)) || (((((((((((!(s__state == 8561) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && 8448 <= s__state) && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) - InvariantResult [Line: 346]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) || ((((((((((((8448 <= s__state && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8545)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: ((((((((((((8448 <= s__state && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8545)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && s__state < 8656) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && !(s__state == 8496)) && !(s__state == 8480)) || ((((((((((!(s__state == 8561) && !(s__state == 8544)) && !(s__state == 8481)) && s__state < 8656) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: (!(s__state == 8673) && !(s__state == 8672)) || ((blastFlag <= 3 && !(s__state == 8672)) && !(0 == s__hit)) - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: (s__state <= 8448 && ((!(s__state == 8448) && 2 == blastFlag) || (!(s__state == 8448) && 0 == blastFlag))) || ((((((((((((((blastFlag <= 3 && !(s__state == 8657)) && !(s__state == 8672)) && !(s__state == 8560)) && !(s__state == 8545)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8673)) && !(s__state == 8656)) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8496)) && !(s__state == 8480)) && !(0 == s__hit)) - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: (((blastFlag <= 3 && 8672 <= s__state) && !(s__state == 12292)) && !(0 == s__hit)) || ((s__state <= 8672 && 8672 <= s__state) && 3 == blastFlag) - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) || ((((((((((((8448 <= s__state && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8545)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state < 8640) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) || ((((((((((((8448 <= s__state && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8545)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && !(s__state == 8496)) && s__state < 8640) && !(s__state == 8480)) - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: ((((((((((s__s3__tmp__next_state___0 <= 8576 && !(s__state == 8481)) && 2 == blastFlag) && s__state <= 8576) && !(s__state == 8480)) || (((!(s__state == 8448) && 0 == s__hit) || (0 == s__hit && 3 == s__s3__tmp__next_state___0)) && s__state <= 8448)) || (1 == blastFlag && s__state == 8496)) || (((((((((s__state <= 8672 && !(s__state == 8561)) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8657)) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 8497)) && !(s__state == 8480)) && !(s__state == 8545))) || ((s__state <= 8672 && 8672 <= s__state) && 3 == blastFlag)) || ((!(s__state == 8448) && 0 == blastFlag) && s__state <= 8464)) || ((((!(s__state == 8481) && blastFlag <= 3) && !(s__state == 8480)) && !(s__state == 12292)) && !(0 == s__hit))) || s__state == 3 - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 8561) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(0 == s__hit)) || (((((((((((!(s__state == 8561) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && 8448 <= s__state) && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) || (((((((((((!(s__state == 8561) && !(s__state == 8544)) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && 8448 <= s__state) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 8512) && 8448 <= s__state) && !(s__state == 8560)) && !(s__state == 8545)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && !(s__state == 8496)) && s__state < 8640) && !(s__state == 8480)) || (((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state < 8640) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8560)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) || ((((((((((!(s__state == 8561) && !(s__state == 8544)) && 1 == blastFlag) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8560)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) || ((((((((!(s__state == 8561) && !(s__state == 8544)) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8560)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545))) && 8448 <= s__state) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: (((((((1 == blastFlag && s__state == 8496) || (((((((((s__state <= 8672 && !(s__state == 8561)) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8657)) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 8497)) && !(s__state == 8480)) && !(s__state == 8545))) || (((8448 <= s__state && s__state <= 8448) && 0 == s__hit) && 3 == s__s3__tmp__next_state___0)) || ((s__state <= 8672 && 8672 <= s__state) && 3 == blastFlag)) || s__state == 3) || ((s__s3__tmp__next_state___0 <= 8576 && 2 == blastFlag) && s__state <= 8576)) || (blastFlag <= 3 && !(0 == s__hit))) || (((!(s__state == 8448) && 0 == blastFlag) && 8448 <= s__state) && s__state <= 8464) - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state < 8640) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) || ((((((((((((8448 <= s__state && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8545)) && !(s__state == 8561)) && !(s__state == 8544)) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && !(s__state == 8496)) && s__state < 8640) && !(s__state == 8480)) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 159]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 8544) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) && !(0 == s__hit)) || (((((((((((!(s__state == 8544) && blastFlag <= 3) && !(s__state == 8481)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && 8448 <= s__state) && !(s__state == 8512)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8480)) && !(s__state == 8545)) - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 8561) && !(s__state == 8544)) && !(8640 == s__s3__tmp__next_state___0)) && !(s__state == 8448)) && 2 == blastFlag) && !(s__state == 8497)) && 8448 <= s__state) && !(s__state == 8512)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8545)) || (((((((((!(s__state == 8561) && !(s__state == 8544)) && blastFlag <= 3) && !(s__state == 8448)) && !(s__state == 8497)) && !(s__state == 8560)) && !(s__state == 8496)) && s__state <= 8576) && !(s__state == 8545)) && !(0 == s__hit)) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: (s__state <= 8672 && (((((!(s__state == 8673) && 8641 < s__state) && !(s__state == 8672)) && 3 == blastFlag) && !(s__state == 12292)) || ((((!(s__state == 8673) && 8641 < s__state) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 12292)))) || (((((!(s__state == 8673) && blastFlag <= 3) && 8641 < s__state) && !(s__state == 8672)) && !(s__state == 12292)) && !(0 == s__hit)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 104 locations, 1 error locations. Result: SAFE, OverallTime: 263.6s, OverallIterations: 30, TraceHistogramMax: 25, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.4s, HoareTripleCheckerStatistics: 3922 SDtfs, 4293 SDslu, 3567 SDs, 0 SdLazy, 5168 SolverSat, 1303 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9890 GetRequests, 9517 SyntacticMatches, 54 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9815 ImplicationChecksByTransitivity, 121.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1962occurred in iteration=26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 30 MinimizatonAttempts, 2945 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 26 PreInvPairs, 306 NumberOfFragments, 2044 HoareAnnotationTreeSize, 26 FomulaSimplifications, 118788 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 26 FomulaSimplificationsInter, 39474 FormulaSimplificationTreeSizeReductionInter, 7.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 6130 NumberOfCodeBlocks, 5853 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 10367 ConstructedInterpolants, 0 QuantifiedInterpolants, 6564164 SizeOfPredicates, 27 NumberOfNonLiveVariables, 6456 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 44 InterpolantComputations, 34 PerfectInterpolantSequences, 46725/49476 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...