./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_3a.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_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 3c83e1c64d2af1ac92027e4b29fb95a984369de1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:08:44,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:08:44,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:08:44,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:08:44,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:08:44,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:08:44,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:08:44,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:08:44,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:08:44,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:08:44,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:08:44,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:08:44,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:08:44,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:08:44,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:08:44,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:08:44,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:08:44,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:08:44,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:08:44,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:08:44,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:08:44,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:08:44,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:08:44,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:08:44,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:08:44,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:08:44,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:08:44,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:08:44,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:08:44,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:08:44,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:08:44,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:08:44,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:08:44,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:08:44,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:08:44,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:08:44,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:08:44,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:08:44,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:08:44,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:08:44,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:08:44,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 22:08:44,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:08:44,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:08:44,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:08:44,671 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:08:44,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:08:44,671 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:08:44,672 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 22:08:44,672 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:08:44,672 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:08:44,672 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 22:08:44,672 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 22:08:44,672 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:08:44,672 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 22:08:44,672 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 22:08:44,672 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 22:08:44,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:08:44,673 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 22:08:44,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 22:08:44,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 22:08:44,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:08:44,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:08:44,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:08:44,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:08:44,674 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 22:08:44,674 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 22:08:44,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:08:44,674 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:08:44,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:08:44,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:08:44,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:08:44,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:08:44,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:08:44,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:08:44,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:08:44,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:08:44,675 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 22:08:44,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 22:08:44,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:08:44,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:08:44,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:08:44,676 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_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 -> 3c83e1c64d2af1ac92027e4b29fb95a984369de1 [2019-12-07 22:08:44,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:08:44,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:08:44,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:08:44,788 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:08:44,789 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:08:44,789 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2019-12-07 22:08:44,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/data/ad086ac6d/4fee1c845d6a452dbe033e129cc101dd/FLAGe37d3f0c7 [2019-12-07 22:08:45,239 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:08:45,240 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2019-12-07 22:08:45,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/data/ad086ac6d/4fee1c845d6a452dbe033e129cc101dd/FLAGe37d3f0c7 [2019-12-07 22:08:45,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/data/ad086ac6d/4fee1c845d6a452dbe033e129cc101dd [2019-12-07 22:08:45,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:08:45,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:08:45,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:08:45,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:08:45,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:08:45,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120ececf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45, skipping insertion in model container [2019-12-07 22:08:45,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:08:45,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:08:45,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:08:45,825 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 22:08:45,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:08:45,868 INFO L208 MainTranslator]: Completed translation [2019-12-07 22:08:45,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45 WrapperNode [2019-12-07 22:08:45,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:08:45,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 22:08:45,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 22:08:45,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 22:08:45,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 22:08:45,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 22:08:45,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 22:08:45,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 22:08:45,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... [2019-12-07 22:08:45,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 22:08:45,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 22:08:45,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 22:08:45,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 22:08:45,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:08:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 22:08:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 22:08:46,042 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 22:08:46,336 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2019-12-07 22:08:46,336 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2019-12-07 22:08:46,475 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 22:08:46,475 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 22:08:46,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:46 BoogieIcfgContainer [2019-12-07 22:08:46,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 22:08:46,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 22:08:46,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 22:08:46,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 22:08:46,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:08:45" (1/3) ... [2019-12-07 22:08:46,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bf1cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:08:46, skipping insertion in model container [2019-12-07 22:08:46,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:45" (2/3) ... [2019-12-07 22:08:46,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bf1cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:08:46, skipping insertion in model container [2019-12-07 22:08:46,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:46" (3/3) ... [2019-12-07 22:08:46,482 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a.BV.c.cil.c [2019-12-07 22:08:46,491 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 22:08:46,496 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 22:08:46,503 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 22:08:46,520 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 22:08:46,520 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 22:08:46,520 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 22:08:46,520 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 22:08:46,520 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 22:08:46,520 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 22:08:46,520 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 22:08:46,520 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 22:08:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-12-07 22:08:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-07 22:08:46,537 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:46,537 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 22:08:46,537 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:46,541 INFO L82 PathProgramCache]: Analyzing trace with hash -480412652, now seen corresponding path program 1 times [2019-12-07 22:08:46,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:46,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101692635] [2019-12-07 22:08:46,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:46,700 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 22:08:46,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101692635] [2019-12-07 22:08:46,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:46,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:46,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571790649] [2019-12-07 22:08:46,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:46,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:46,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:46,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:46,719 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 3 states. [2019-12-07 22:08:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:46,891 INFO L93 Difference]: Finished difference Result 254 states and 448 transitions. [2019-12-07 22:08:46,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:46,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-12-07 22:08:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:46,901 INFO L225 Difference]: With dead ends: 254 [2019-12-07 22:08:46,901 INFO L226 Difference]: Without dead ends: 146 [2019-12-07 22:08:46,904 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 22:08:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-12-07 22:08:46,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2019-12-07 22:08:46,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-12-07 22:08:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 228 transitions. [2019-12-07 22:08:46,938 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 228 transitions. Word has length 39 [2019-12-07 22:08:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:46,939 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 228 transitions. [2019-12-07 22:08:46,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 228 transitions. [2019-12-07 22:08:46,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 22:08:46,940 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:46,940 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 22:08:46,941 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:46,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:46,941 INFO L82 PathProgramCache]: Analyzing trace with hash -2014955653, now seen corresponding path program 1 times [2019-12-07 22:08:46,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:46,941 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443905277] [2019-12-07 22:08:46,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:46,982 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 22:08:46,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443905277] [2019-12-07 22:08:46,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:46,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:46,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410245917] [2019-12-07 22:08:46,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:46,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:46,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:46,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:46,984 INFO L87 Difference]: Start difference. First operand 141 states and 228 transitions. Second operand 3 states. [2019-12-07 22:08:47,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:47,122 INFO L93 Difference]: Finished difference Result 326 states and 536 transitions. [2019-12-07 22:08:47,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:47,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-12-07 22:08:47,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:47,124 INFO L225 Difference]: With dead ends: 326 [2019-12-07 22:08:47,124 INFO L226 Difference]: Without dead ends: 185 [2019-12-07 22:08:47,126 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 22:08:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-12-07 22:08:47,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 180. [2019-12-07 22:08:47,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-12-07 22:08:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 301 transitions. [2019-12-07 22:08:47,137 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 301 transitions. Word has length 40 [2019-12-07 22:08:47,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:47,138 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 301 transitions. [2019-12-07 22:08:47,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:47,138 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 301 transitions. [2019-12-07 22:08:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-12-07 22:08:47,140 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:47,140 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 22:08:47,141 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:47,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:47,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1844023237, now seen corresponding path program 1 times [2019-12-07 22:08:47,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:47,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532732396] [2019-12-07 22:08:47,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:47,181 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 22:08:47,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532732396] [2019-12-07 22:08:47,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:47,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:47,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996066660] [2019-12-07 22:08:47,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:47,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:47,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:47,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:47,183 INFO L87 Difference]: Start difference. First operand 180 states and 301 transitions. Second operand 3 states. [2019-12-07 22:08:47,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:47,285 INFO L93 Difference]: Finished difference Result 387 states and 654 transitions. [2019-12-07 22:08:47,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:47,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-12-07 22:08:47,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:47,287 INFO L225 Difference]: With dead ends: 387 [2019-12-07 22:08:47,287 INFO L226 Difference]: Without dead ends: 209 [2019-12-07 22:08:47,288 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 22:08:47,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-12-07 22:08:47,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2019-12-07 22:08:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-12-07 22:08:47,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 353 transitions. [2019-12-07 22:08:47,300 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 353 transitions. Word has length 66 [2019-12-07 22:08:47,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:47,300 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 353 transitions. [2019-12-07 22:08:47,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:47,300 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 353 transitions. [2019-12-07 22:08:47,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-07 22:08:47,303 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:47,303 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 22:08:47,303 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:47,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:47,303 INFO L82 PathProgramCache]: Analyzing trace with hash 2117175919, now seen corresponding path program 1 times [2019-12-07 22:08:47,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:47,303 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857077817] [2019-12-07 22:08:47,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:47,336 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 22:08:47,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857077817] [2019-12-07 22:08:47,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:47,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:47,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544875378] [2019-12-07 22:08:47,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:47,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:47,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:47,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:47,338 INFO L87 Difference]: Start difference. First operand 209 states and 353 transitions. Second operand 3 states. [2019-12-07 22:08:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:47,424 INFO L93 Difference]: Finished difference Result 431 states and 728 transitions. [2019-12-07 22:08:47,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:47,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-12-07 22:08:47,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:47,426 INFO L225 Difference]: With dead ends: 431 [2019-12-07 22:08:47,426 INFO L226 Difference]: Without dead ends: 224 [2019-12-07 22:08:47,426 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 22:08:47,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-12-07 22:08:47,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2019-12-07 22:08:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-12-07 22:08:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 372 transitions. [2019-12-07 22:08:47,435 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 372 transitions. Word has length 77 [2019-12-07 22:08:47,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:47,435 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 372 transitions. [2019-12-07 22:08:47,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:47,435 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 372 transitions. [2019-12-07 22:08:47,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-07 22:08:47,436 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:47,437 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 22:08:47,437 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:47,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:47,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1082439277, now seen corresponding path program 1 times [2019-12-07 22:08:47,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:47,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083071004] [2019-12-07 22:08:47,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:47,471 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 22:08:47,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083071004] [2019-12-07 22:08:47,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:47,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:47,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394800039] [2019-12-07 22:08:47,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:47,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:47,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:47,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:47,473 INFO L87 Difference]: Start difference. First operand 222 states and 372 transitions. Second operand 3 states. [2019-12-07 22:08:47,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:47,574 INFO L93 Difference]: Finished difference Result 483 states and 815 transitions. [2019-12-07 22:08:47,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:47,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-12-07 22:08:47,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:47,575 INFO L225 Difference]: With dead ends: 483 [2019-12-07 22:08:47,575 INFO L226 Difference]: Without dead ends: 263 [2019-12-07 22:08:47,576 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 22:08:47,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2019-12-07 22:08:47,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 260. [2019-12-07 22:08:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2019-12-07 22:08:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 440 transitions. [2019-12-07 22:08:47,584 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 440 transitions. Word has length 77 [2019-12-07 22:08:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:47,585 INFO L462 AbstractCegarLoop]: Abstraction has 260 states and 440 transitions. [2019-12-07 22:08:47,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 440 transitions. [2019-12-07 22:08:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-12-07 22:08:47,585 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:47,586 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 22:08:47,586 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:47,586 INFO L82 PathProgramCache]: Analyzing trace with hash -373504293, now seen corresponding path program 1 times [2019-12-07 22:08:47,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:47,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59482919] [2019-12-07 22:08:47,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:47,610 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 22:08:47,610 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59482919] [2019-12-07 22:08:47,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:47,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:47,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426414604] [2019-12-07 22:08:47,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:47,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:47,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:47,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:47,612 INFO L87 Difference]: Start difference. First operand 260 states and 440 transitions. Second operand 3 states. [2019-12-07 22:08:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:47,681 INFO L93 Difference]: Finished difference Result 520 states and 880 transitions. [2019-12-07 22:08:47,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:47,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-12-07 22:08:47,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:47,682 INFO L225 Difference]: With dead ends: 520 [2019-12-07 22:08:47,683 INFO L226 Difference]: Without dead ends: 262 [2019-12-07 22:08:47,683 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 22:08:47,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2019-12-07 22:08:47,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2019-12-07 22:08:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2019-12-07 22:08:47,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 436 transitions. [2019-12-07 22:08:47,693 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 436 transitions. Word has length 78 [2019-12-07 22:08:47,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:47,693 INFO L462 AbstractCegarLoop]: Abstraction has 260 states and 436 transitions. [2019-12-07 22:08:47,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:47,693 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 436 transitions. [2019-12-07 22:08:47,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-12-07 22:08:47,694 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:47,695 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 22:08:47,695 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:47,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:47,695 INFO L82 PathProgramCache]: Analyzing trace with hash 868972852, now seen corresponding path program 1 times [2019-12-07 22:08:47,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:47,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963938190] [2019-12-07 22:08:47,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:47,730 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 22:08:47,730 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963938190] [2019-12-07 22:08:47,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:47,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:47,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463852733] [2019-12-07 22:08:47,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:47,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:47,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:47,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:47,732 INFO L87 Difference]: Start difference. First operand 260 states and 436 transitions. Second operand 3 states. [2019-12-07 22:08:47,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:47,830 INFO L93 Difference]: Finished difference Result 521 states and 873 transitions. [2019-12-07 22:08:47,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:47,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-12-07 22:08:47,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:47,831 INFO L225 Difference]: With dead ends: 521 [2019-12-07 22:08:47,831 INFO L226 Difference]: Without dead ends: 261 [2019-12-07 22:08:47,832 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 22:08:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-12-07 22:08:47,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 258. [2019-12-07 22:08:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-12-07 22:08:47,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 431 transitions. [2019-12-07 22:08:47,838 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 431 transitions. Word has length 78 [2019-12-07 22:08:47,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:47,838 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 431 transitions. [2019-12-07 22:08:47,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:47,839 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 431 transitions. [2019-12-07 22:08:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-12-07 22:08:47,839 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:47,839 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 22:08:47,839 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:47,840 INFO L82 PathProgramCache]: Analyzing trace with hash 253876968, now seen corresponding path program 1 times [2019-12-07 22:08:47,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:47,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393646213] [2019-12-07 22:08:47,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:47,860 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 22:08:47,861 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393646213] [2019-12-07 22:08:47,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:47,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:47,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80537414] [2019-12-07 22:08:47,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:47,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:47,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:47,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:47,862 INFO L87 Difference]: Start difference. First operand 258 states and 431 transitions. Second operand 3 states. [2019-12-07 22:08:47,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:47,931 INFO L93 Difference]: Finished difference Result 521 states and 869 transitions. [2019-12-07 22:08:47,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:47,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-12-07 22:08:47,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:47,934 INFO L225 Difference]: With dead ends: 521 [2019-12-07 22:08:47,934 INFO L226 Difference]: Without dead ends: 265 [2019-12-07 22:08:47,934 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 22:08:47,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-12-07 22:08:47,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2019-12-07 22:08:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-12-07 22:08:47,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 434 transitions. [2019-12-07 22:08:47,944 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 434 transitions. Word has length 86 [2019-12-07 22:08:47,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:47,944 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 434 transitions. [2019-12-07 22:08:47,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:47,944 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 434 transitions. [2019-12-07 22:08:47,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-12-07 22:08:47,945 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:47,945 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 22:08:47,945 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:47,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:47,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1538180594, now seen corresponding path program 1 times [2019-12-07 22:08:47,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:47,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770965423] [2019-12-07 22:08:47,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:47,977 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 22:08:47,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770965423] [2019-12-07 22:08:47,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:47,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:47,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349541846] [2019-12-07 22:08:47,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:47,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:47,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:47,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:47,979 INFO L87 Difference]: Start difference. First operand 265 states and 434 transitions. Second operand 3 states. [2019-12-07 22:08:48,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:48,069 INFO L93 Difference]: Finished difference Result 557 states and 915 transitions. [2019-12-07 22:08:48,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:48,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2019-12-07 22:08:48,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:48,072 INFO L225 Difference]: With dead ends: 557 [2019-12-07 22:08:48,072 INFO L226 Difference]: Without dead ends: 294 [2019-12-07 22:08:48,072 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 22:08:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-12-07 22:08:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292. [2019-12-07 22:08:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2019-12-07 22:08:48,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 477 transitions. [2019-12-07 22:08:48,083 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 477 transitions. Word has length 91 [2019-12-07 22:08:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:48,083 INFO L462 AbstractCegarLoop]: Abstraction has 292 states and 477 transitions. [2019-12-07 22:08:48,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:48,084 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 477 transitions. [2019-12-07 22:08:48,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-12-07 22:08:48,085 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:48,085 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 22:08:48,085 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:48,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:48,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1377164570, now seen corresponding path program 1 times [2019-12-07 22:08:48,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:48,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791265495] [2019-12-07 22:08:48,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:48,117 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 22:08:48,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791265495] [2019-12-07 22:08:48,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:48,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:48,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482038004] [2019-12-07 22:08:48,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:48,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:48,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:48,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:48,118 INFO L87 Difference]: Start difference. First operand 292 states and 477 transitions. Second operand 3 states. [2019-12-07 22:08:48,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:48,219 INFO L93 Difference]: Finished difference Result 614 states and 1007 transitions. [2019-12-07 22:08:48,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:48,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2019-12-07 22:08:48,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:48,221 INFO L225 Difference]: With dead ends: 614 [2019-12-07 22:08:48,222 INFO L226 Difference]: Without dead ends: 324 [2019-12-07 22:08:48,222 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 22:08:48,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-12-07 22:08:48,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 317. [2019-12-07 22:08:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-12-07 22:08:48,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 515 transitions. [2019-12-07 22:08:48,233 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 515 transitions. Word has length 92 [2019-12-07 22:08:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:48,233 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 515 transitions. [2019-12-07 22:08:48,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 515 transitions. [2019-12-07 22:08:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-12-07 22:08:48,234 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:48,235 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 22:08:48,235 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:48,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:48,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1450762686, now seen corresponding path program 1 times [2019-12-07 22:08:48,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:48,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426455693] [2019-12-07 22:08:48,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:48,260 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 22:08:48,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426455693] [2019-12-07 22:08:48,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:48,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:48,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121656239] [2019-12-07 22:08:48,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:48,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:48,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:48,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:48,261 INFO L87 Difference]: Start difference. First operand 317 states and 515 transitions. Second operand 3 states. [2019-12-07 22:08:48,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:48,354 INFO L93 Difference]: Finished difference Result 634 states and 1030 transitions. [2019-12-07 22:08:48,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:48,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2019-12-07 22:08:48,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:48,356 INFO L225 Difference]: With dead ends: 634 [2019-12-07 22:08:48,356 INFO L226 Difference]: Without dead ends: 319 [2019-12-07 22:08:48,357 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 22:08:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-12-07 22:08:48,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 317. [2019-12-07 22:08:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-12-07 22:08:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 511 transitions. [2019-12-07 22:08:48,365 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 511 transitions. Word has length 92 [2019-12-07 22:08:48,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:48,365 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 511 transitions. [2019-12-07 22:08:48,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:48,365 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 511 transitions. [2019-12-07 22:08:48,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-12-07 22:08:48,366 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:48,366 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 22:08:48,366 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:48,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:48,366 INFO L82 PathProgramCache]: Analyzing trace with hash 609408878, now seen corresponding path program 1 times [2019-12-07 22:08:48,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:48,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590169839] [2019-12-07 22:08:48,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:48,384 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 22:08:48,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590169839] [2019-12-07 22:08:48,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:48,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:48,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251696429] [2019-12-07 22:08:48,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:48,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:48,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:48,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:48,386 INFO L87 Difference]: Start difference. First operand 317 states and 511 transitions. Second operand 3 states. [2019-12-07 22:08:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:48,486 INFO L93 Difference]: Finished difference Result 639 states and 1032 transitions. [2019-12-07 22:08:48,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:48,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-12-07 22:08:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:48,488 INFO L225 Difference]: With dead ends: 639 [2019-12-07 22:08:48,488 INFO L226 Difference]: Without dead ends: 324 [2019-12-07 22:08:48,489 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 22:08:48,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-12-07 22:08:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 317. [2019-12-07 22:08:48,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-12-07 22:08:48,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 506 transitions. [2019-12-07 22:08:48,497 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 506 transitions. Word has length 93 [2019-12-07 22:08:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:48,497 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 506 transitions. [2019-12-07 22:08:48,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:48,497 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 506 transitions. [2019-12-07 22:08:48,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-12-07 22:08:48,498 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:48,498 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 22:08:48,498 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:48,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:48,498 INFO L82 PathProgramCache]: Analyzing trace with hash 2043937668, now seen corresponding path program 1 times [2019-12-07 22:08:48,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:48,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819714151] [2019-12-07 22:08:48,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:48,516 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 22:08:48,517 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819714151] [2019-12-07 22:08:48,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:48,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:48,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008007666] [2019-12-07 22:08:48,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:48,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:48,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:48,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:48,518 INFO L87 Difference]: Start difference. First operand 317 states and 506 transitions. Second operand 3 states. [2019-12-07 22:08:48,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:48,609 INFO L93 Difference]: Finished difference Result 653 states and 1043 transitions. [2019-12-07 22:08:48,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:48,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-12-07 22:08:48,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:48,611 INFO L225 Difference]: With dead ends: 653 [2019-12-07 22:08:48,611 INFO L226 Difference]: Without dead ends: 338 [2019-12-07 22:08:48,612 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 22:08:48,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-12-07 22:08:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 336. [2019-12-07 22:08:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-12-07 22:08:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 531 transitions. [2019-12-07 22:08:48,625 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 531 transitions. Word has length 94 [2019-12-07 22:08:48,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:48,625 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 531 transitions. [2019-12-07 22:08:48,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:48,625 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 531 transitions. [2019-12-07 22:08:48,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-12-07 22:08:48,626 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:48,626 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 22:08:48,627 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:48,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:48,627 INFO L82 PathProgramCache]: Analyzing trace with hash 986752696, now seen corresponding path program 1 times [2019-12-07 22:08:48,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:48,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239813096] [2019-12-07 22:08:48,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:48,648 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 22:08:48,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239813096] [2019-12-07 22:08:48,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:48,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 22:08:48,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563081668] [2019-12-07 22:08:48,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:48,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:48,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:48,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:48,649 INFO L87 Difference]: Start difference. First operand 336 states and 531 transitions. Second operand 3 states. [2019-12-07 22:08:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:48,739 INFO L93 Difference]: Finished difference Result 672 states and 1062 transitions. [2019-12-07 22:08:48,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:48,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2019-12-07 22:08:48,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:48,740 INFO L225 Difference]: With dead ends: 672 [2019-12-07 22:08:48,740 INFO L226 Difference]: Without dead ends: 338 [2019-12-07 22:08:48,741 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 22:08:48,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-12-07 22:08:48,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 336. [2019-12-07 22:08:48,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-12-07 22:08:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 525 transitions. [2019-12-07 22:08:48,750 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 525 transitions. Word has length 95 [2019-12-07 22:08:48,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:48,750 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 525 transitions. [2019-12-07 22:08:48,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:48,751 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 525 transitions. [2019-12-07 22:08:48,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-12-07 22:08:48,751 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:48,752 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 22:08:48,752 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:48,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:48,752 INFO L82 PathProgramCache]: Analyzing trace with hash -390097430, now seen corresponding path program 1 times [2019-12-07 22:08:48,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:48,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809003433] [2019-12-07 22:08:48,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:48,798 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 22:08:48,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809003433] [2019-12-07 22:08:48,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920259338] [2019-12-07 22:08:48,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:08:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:48,846 INFO L264 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 22:08:48,852 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:48,886 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 22:08:48,886 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:48,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 22:08:48,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 22:08:48,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 22:08:48,936 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 22:08:48,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-12-07 22:08:48,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5] total 6 [2019-12-07 22:08:48,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502053761] [2019-12-07 22:08:48,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:48,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:48,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:48,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 22:08:48,938 INFO L87 Difference]: Start difference. First operand 336 states and 525 transitions. Second operand 3 states. [2019-12-07 22:08:48,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:48,964 INFO L93 Difference]: Finished difference Result 669 states and 1047 transitions. [2019-12-07 22:08:48,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:48,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-12-07 22:08:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:48,967 INFO L225 Difference]: With dead ends: 669 [2019-12-07 22:08:48,967 INFO L226 Difference]: Without dead ends: 667 [2019-12-07 22:08:48,968 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 22:08:48,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-12-07 22:08:48,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 664. [2019-12-07 22:08:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2019-12-07 22:08:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 1041 transitions. [2019-12-07 22:08:49,000 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 1041 transitions. Word has length 108 [2019-12-07 22:08:49,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:49,000 INFO L462 AbstractCegarLoop]: Abstraction has 664 states and 1041 transitions. [2019-12-07 22:08:49,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:49,000 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 1041 transitions. [2019-12-07 22:08:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-12-07 22:08:49,001 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:49,001 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 22:08:49,202 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:49,202 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:49,202 INFO L82 PathProgramCache]: Analyzing trace with hash 287999283, now seen corresponding path program 1 times [2019-12-07 22:08:49,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:49,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636207198] [2019-12-07 22:08:49,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:49,209 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:08:49,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1501937507] [2019-12-07 22:08:49,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:08:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:49,255 INFO L264 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 22:08:49,259 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:49,278 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 22:08:49,278 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:49,296 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 22:08:49,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636207198] [2019-12-07 22:08:49,296 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:49,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501937507] [2019-12-07 22:08:49,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:49,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 22:08:49,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441812301] [2019-12-07 22:08:49,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:08:49,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:49,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:08:49,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:08:49,298 INFO L87 Difference]: Start difference. First operand 664 states and 1041 transitions. Second operand 4 states. [2019-12-07 22:08:49,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:49,483 INFO L93 Difference]: Finished difference Result 1490 states and 2332 transitions. [2019-12-07 22:08:49,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 22:08:49,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2019-12-07 22:08:49,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:49,486 INFO L225 Difference]: With dead ends: 1490 [2019-12-07 22:08:49,486 INFO L226 Difference]: Without dead ends: 786 [2019-12-07 22:08:49,488 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 22:08:49,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-12-07 22:08:49,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 766. [2019-12-07 22:08:49,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2019-12-07 22:08:49,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1153 transitions. [2019-12-07 22:08:49,511 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1153 transitions. Word has length 111 [2019-12-07 22:08:49,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:49,511 INFO L462 AbstractCegarLoop]: Abstraction has 766 states and 1153 transitions. [2019-12-07 22:08:49,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:08:49,511 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1153 transitions. [2019-12-07 22:08:49,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-12-07 22:08:49,512 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:49,513 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 22:08:49,713 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:49,713 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:49,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:49,714 INFO L82 PathProgramCache]: Analyzing trace with hash 834880880, now seen corresponding path program 1 times [2019-12-07 22:08:49,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:49,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145335412] [2019-12-07 22:08:49,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:49,720 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:08:49,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370621399] [2019-12-07 22:08:49,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:08:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:49,769 INFO L264 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:49,773 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:49,806 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 22:08:49,807 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:49,833 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 22:08:49,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145335412] [2019-12-07 22:08:49,834 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:49,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370621399] [2019-12-07 22:08:49,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:49,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 22:08:49,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016191468] [2019-12-07 22:08:49,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:08:49,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:49,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:08:49,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 22:08:49,835 INFO L87 Difference]: Start difference. First operand 766 states and 1153 transitions. Second operand 6 states. [2019-12-07 22:08:50,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:50,036 INFO L93 Difference]: Finished difference Result 1598 states and 2399 transitions. [2019-12-07 22:08:50,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 22:08:50,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2019-12-07 22:08:50,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:50,039 INFO L225 Difference]: With dead ends: 1598 [2019-12-07 22:08:50,040 INFO L226 Difference]: Without dead ends: 834 [2019-12-07 22:08:50,041 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 22:08:50,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2019-12-07 22:08:50,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2019-12-07 22:08:50,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-12-07 22:08:50,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1141 transitions. [2019-12-07 22:08:50,061 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1141 transitions. Word has length 142 [2019-12-07 22:08:50,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:50,061 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1141 transitions. [2019-12-07 22:08:50,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:08:50,061 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1141 transitions. [2019-12-07 22:08:50,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-12-07 22:08:50,063 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:50,063 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 22:08:50,263 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:50,264 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:50,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:50,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1943758779, now seen corresponding path program 1 times [2019-12-07 22:08:50,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:50,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77794723] [2019-12-07 22:08:50,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:50,298 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 22:08:50,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77794723] [2019-12-07 22:08:50,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:50,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 22:08:50,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329134698] [2019-12-07 22:08:50,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:50,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:50,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:50,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:50,300 INFO L87 Difference]: Start difference. First operand 803 states and 1141 transitions. Second operand 3 states. [2019-12-07 22:08:50,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:50,401 INFO L93 Difference]: Finished difference Result 1608 states and 2284 transitions. [2019-12-07 22:08:50,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:50,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-12-07 22:08:50,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:50,404 INFO L225 Difference]: With dead ends: 1608 [2019-12-07 22:08:50,404 INFO L226 Difference]: Without dead ends: 807 [2019-12-07 22:08:50,405 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 22:08:50,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2019-12-07 22:08:50,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 803. [2019-12-07 22:08:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-12-07 22:08:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1127 transitions. [2019-12-07 22:08:50,426 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1127 transitions. Word has length 157 [2019-12-07 22:08:50,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:50,426 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1127 transitions. [2019-12-07 22:08:50,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:50,426 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1127 transitions. [2019-12-07 22:08:50,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-12-07 22:08:50,428 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:50,428 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 22:08:50,428 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:50,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:50,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1636637124, now seen corresponding path program 1 times [2019-12-07 22:08:50,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:50,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015737509] [2019-12-07 22:08:50,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:50,435 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:08:50,435 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353259195] [2019-12-07 22:08:50,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:08:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:50,492 INFO L264 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:08:50,495 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:50,516 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 22:08:50,516 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:50,540 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 22:08:50,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015737509] [2019-12-07 22:08:50,540 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:50,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353259195] [2019-12-07 22:08:50,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:50,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 22:08:50,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594776523] [2019-12-07 22:08:50,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:08:50,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:50,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:08:50,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:08:50,542 INFO L87 Difference]: Start difference. First operand 803 states and 1127 transitions. Second operand 4 states. [2019-12-07 22:08:50,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:50,689 INFO L93 Difference]: Finished difference Result 1241 states and 1741 transitions. [2019-12-07 22:08:50,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 22:08:50,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2019-12-07 22:08:50,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:50,693 INFO L225 Difference]: With dead ends: 1241 [2019-12-07 22:08:50,693 INFO L226 Difference]: Without dead ends: 819 [2019-12-07 22:08:50,694 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 22:08:50,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2019-12-07 22:08:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 803. [2019-12-07 22:08:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-12-07 22:08:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1125 transitions. [2019-12-07 22:08:50,713 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1125 transitions. Word has length 181 [2019-12-07 22:08:50,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:50,713 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1125 transitions. [2019-12-07 22:08:50,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:08:50,713 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1125 transitions. [2019-12-07 22:08:50,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-12-07 22:08:50,715 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:50,715 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 22:08:50,915 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:50,916 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:50,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:50,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1613204152, now seen corresponding path program 1 times [2019-12-07 22:08:50,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:50,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648556031] [2019-12-07 22:08:50,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:50,923 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:08:50,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726702065] [2019-12-07 22:08:50,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:08:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:50,985 INFO L264 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:50,987 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:51,008 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 22:08:51,009 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:51,030 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 22:08:51,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648556031] [2019-12-07 22:08:51,030 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:51,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726702065] [2019-12-07 22:08:51,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:51,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 22:08:51,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087266737] [2019-12-07 22:08:51,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:51,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:51,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:51,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:51,032 INFO L87 Difference]: Start difference. First operand 803 states and 1125 transitions. Second operand 3 states. [2019-12-07 22:08:51,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:51,178 INFO L93 Difference]: Finished difference Result 1670 states and 2350 transitions. [2019-12-07 22:08:51,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:51,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-12-07 22:08:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:51,183 INFO L225 Difference]: With dead ends: 1670 [2019-12-07 22:08:51,183 INFO L226 Difference]: Without dead ends: 869 [2019-12-07 22:08:51,185 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 22:08:51,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2019-12-07 22:08:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 849. [2019-12-07 22:08:51,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2019-12-07 22:08:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1177 transitions. [2019-12-07 22:08:51,223 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1177 transitions. Word has length 193 [2019-12-07 22:08:51,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:51,224 INFO L462 AbstractCegarLoop]: Abstraction has 849 states and 1177 transitions. [2019-12-07 22:08:51,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1177 transitions. [2019-12-07 22:08:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-12-07 22:08:51,227 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:51,228 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 22:08:51,428 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:08:51,428 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:51,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:51,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1587809459, now seen corresponding path program 1 times [2019-12-07 22:08:51,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:51,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152865446] [2019-12-07 22:08:51,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:51,487 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 22:08:51,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152865446] [2019-12-07 22:08:51,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:08:51,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 22:08:51,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540776973] [2019-12-07 22:08:51,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:08:51,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:08:51,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:08:51,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:08:51,489 INFO L87 Difference]: Start difference. First operand 849 states and 1177 transitions. Second operand 3 states. [2019-12-07 22:08:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:08:51,604 INFO L93 Difference]: Finished difference Result 1710 states and 2376 transitions. [2019-12-07 22:08:51,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:08:51,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-12-07 22:08:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:08:51,608 INFO L225 Difference]: With dead ends: 1710 [2019-12-07 22:08:51,608 INFO L226 Difference]: Without dead ends: 863 [2019-12-07 22:08:51,609 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 22:08:51,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2019-12-07 22:08:51,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 849. [2019-12-07 22:08:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2019-12-07 22:08:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1155 transitions. [2019-12-07 22:08:51,631 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1155 transitions. Word has length 217 [2019-12-07 22:08:51,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:08:51,631 INFO L462 AbstractCegarLoop]: Abstraction has 849 states and 1155 transitions. [2019-12-07 22:08:51,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:08:51,631 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1155 transitions. [2019-12-07 22:08:51,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-12-07 22:08:51,634 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:08:51,634 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 22:08:51,634 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:08:51,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:08:51,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1101827033, now seen corresponding path program 1 times [2019-12-07 22:08:51,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:08:51,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197633119] [2019-12-07 22:08:51,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:08:51,644 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:08:51,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759930067] [2019-12-07 22:08:51,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:08:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:08:51,716 INFO L264 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:08:51,719 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:08:51,756 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 22:08:51,756 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:08:51,804 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 22:08:51,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197633119] [2019-12-07 22:08:51,805 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:08:51,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759930067] [2019-12-07 22:08:51,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [344507747] [2019-12-07 22:08:51,826 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2019-12-07 22:08:51,826 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:08:51,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:08:51,835 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:08:51,836 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:09:02,767 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:09:03,083 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-12-07 22:09:07,480 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 22 [2019-12-07 22:09:08,429 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:09:08,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 22:09:08,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-12-07 22:09:08,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098974021] [2019-12-07 22:09:08,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 22:09:08,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:09:08,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 22:09:08,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=720, Invalid=3702, Unknown=0, NotChecked=0, Total=4422 [2019-12-07 22:09:08,434 INFO L87 Difference]: Start difference. First operand 849 states and 1155 transitions. Second operand 6 states. [2019-12-07 22:09:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:08,767 INFO L93 Difference]: Finished difference Result 2691 states and 3673 transitions. [2019-12-07 22:09:08,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 22:09:08,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2019-12-07 22:09:08,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:08,776 INFO L225 Difference]: With dead ends: 2691 [2019-12-07 22:09:08,776 INFO L226 Difference]: Without dead ends: 1802 [2019-12-07 22:09:08,779 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 642 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2131 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=732, Invalid=3960, Unknown=0, NotChecked=0, Total=4692 [2019-12-07 22:09:08,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2019-12-07 22:09:08,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1031. [2019-12-07 22:09:08,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2019-12-07 22:09:08,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1421 transitions. [2019-12-07 22:09:08,821 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1421 transitions. Word has length 238 [2019-12-07 22:09:08,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:08,821 INFO L462 AbstractCegarLoop]: Abstraction has 1031 states and 1421 transitions. [2019-12-07 22:09:08,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 22:09:08,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1421 transitions. [2019-12-07 22:09:08,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-12-07 22:09:08,825 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:08,825 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 22:09:09,026 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:09:09,026 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:09,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:09,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1243001142, now seen corresponding path program 1 times [2019-12-07 22:09:09,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:09:09,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828603625] [2019-12-07 22:09:09,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:09:09,040 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:09:09,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043123677] [2019-12-07 22:09:09,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:09:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:09,099 INFO L264 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 22:09:09,102 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:09,176 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 22:09:09,177 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:09,259 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 22:09:09,259 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828603625] [2019-12-07 22:09:09,259 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:09:09,259 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043123677] [2019-12-07 22:09:09,259 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1518033992] [2019-12-07 22:09:09,261 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2019-12-07 22:09:09,261 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:09:09,262 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:09:09,262 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:09:09,262 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:09:19,502 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:09:19,828 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 131 [2019-12-07 22:09:20,116 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-12-07 22:09:20,421 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2019-12-07 22:09:20,709 WARN L192 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:09:21,566 WARN L192 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 134 [2019-12-07 22:09:22,407 WARN L192 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 22:09:23,259 WARN L192 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:09:24,163 WARN L192 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 22:09:25,103 WARN L192 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 22:09:26,040 WARN L192 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 22:09:26,999 WARN L192 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2019-12-07 22:09:27,890 WARN L192 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 135 [2019-12-07 22:09:28,783 WARN L192 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2019-12-07 22:09:29,146 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 127 [2019-12-07 22:09:30,333 WARN L192 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 159 DAG size of output: 155 [2019-12-07 22:09:31,399 WARN L192 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2019-12-07 22:09:32,436 WARN L192 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2019-12-07 22:09:33,435 WARN L192 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 136 [2019-12-07 22:09:33,789 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 128 [2019-12-07 22:09:34,938 WARN L192 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 164 [2019-12-07 22:09:35,441 WARN L192 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 22:09:35,912 WARN L192 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 22:09:36,369 WARN L192 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 22:09:36,899 WARN L192 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 22:09:37,322 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:09:37,757 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 22:09:38,198 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 22:09:38,648 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 22:09:39,124 WARN L192 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2019-12-07 22:09:39,589 WARN L192 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2019-12-07 22:09:39,985 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 22:09:40,468 WARN L192 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 22:09:40,938 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 22:09:41,380 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 22:09:41,819 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:09:42,277 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 22:09:42,935 WARN L192 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 140 [2019-12-07 22:09:43,589 WARN L192 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 142 [2019-12-07 22:09:44,336 WARN L192 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 146 [2019-12-07 22:09:44,886 WARN L192 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 140 [2019-12-07 22:09:45,431 WARN L192 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 22:09:45,968 WARN L192 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 22:09:46,418 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:09:46,834 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:09:47,230 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 132 [2019-12-07 22:09:47,748 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:09:48,251 WARN L192 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 130 [2019-12-07 22:09:48,769 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 22:09:49,454 WARN L192 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 137 [2019-12-07 22:09:49,580 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:09:49,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 22:09:49,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-12-07 22:09:49,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917187324] [2019-12-07 22:09:49,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 22:09:49,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:09:49,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 22:09:49,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=492, Invalid=2588, Unknown=0, NotChecked=0, Total=3080 [2019-12-07 22:09:49,583 INFO L87 Difference]: Start difference. First operand 1031 states and 1421 transitions. Second operand 7 states. [2019-12-07 22:09:50,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:50,111 INFO L93 Difference]: Finished difference Result 3027 states and 4168 transitions. [2019-12-07 22:09:50,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 22:09:50,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2019-12-07 22:09:50,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:50,116 INFO L225 Difference]: With dead ends: 3027 [2019-12-07 22:09:50,116 INFO L226 Difference]: Without dead ends: 1387 [2019-12-07 22:09:50,119 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 670 SyntacticMatches, 15 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 30.1s TimeCoverageRelationStatistics Valid=521, Invalid=3139, Unknown=0, NotChecked=0, Total=3660 [2019-12-07 22:09:50,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2019-12-07 22:09:50,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1316. [2019-12-07 22:09:50,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1316 states. [2019-12-07 22:09:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1788 transitions. [2019-12-07 22:09:50,149 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1788 transitions. Word has length 246 [2019-12-07 22:09:50,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:50,149 INFO L462 AbstractCegarLoop]: Abstraction has 1316 states and 1788 transitions. [2019-12-07 22:09:50,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 22:09:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1788 transitions. [2019-12-07 22:09:50,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-12-07 22:09:50,152 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:50,152 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 22:09:50,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:09:50,353 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:50,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:50,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1729187689, now seen corresponding path program 1 times [2019-12-07 22:09:50,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:09:50,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251386447] [2019-12-07 22:09:50,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:09:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:50,406 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 22:09:50,407 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251386447] [2019-12-07 22:09:50,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:50,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 22:09:50,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533128295] [2019-12-07 22:09:50,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:09:50,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:09:50,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:09:50,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:09:50,408 INFO L87 Difference]: Start difference. First operand 1316 states and 1788 transitions. Second operand 3 states. [2019-12-07 22:09:50,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:50,508 INFO L93 Difference]: Finished difference Result 2636 states and 3580 transitions. [2019-12-07 22:09:50,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:09:50,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2019-12-07 22:09:50,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:50,513 INFO L225 Difference]: With dead ends: 2636 [2019-12-07 22:09:50,513 INFO L226 Difference]: Without dead ends: 1322 [2019-12-07 22:09:50,515 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 22:09:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2019-12-07 22:09:50,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1316. [2019-12-07 22:09:50,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1316 states. [2019-12-07 22:09:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1758 transitions. [2019-12-07 22:09:50,544 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1758 transitions. Word has length 269 [2019-12-07 22:09:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:50,544 INFO L462 AbstractCegarLoop]: Abstraction has 1316 states and 1758 transitions. [2019-12-07 22:09:50,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:09:50,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1758 transitions. [2019-12-07 22:09:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-12-07 22:09:50,546 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:50,546 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 22:09:50,546 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:50,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:50,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1263121768, now seen corresponding path program 1 times [2019-12-07 22:09:50,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:09:50,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614335634] [2019-12-07 22:09:50,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:09:50,554 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:09:50,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338702025] [2019-12-07 22:09:50,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:09:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:50,621 INFO L264 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 22:09:50,623 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:50,665 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 22:09:50,665 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:50,706 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 22:09:50,706 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614335634] [2019-12-07 22:09:50,706 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:09:50,706 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338702025] [2019-12-07 22:09:50,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:09:50,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 22:09:50,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657430964] [2019-12-07 22:09:50,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 22:09:50,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:09:50,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 22:09:50,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 22:09:50,707 INFO L87 Difference]: Start difference. First operand 1316 states and 1758 transitions. Second operand 3 states. [2019-12-07 22:09:50,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:09:50,802 INFO L93 Difference]: Finished difference Result 2732 states and 3661 transitions. [2019-12-07 22:09:50,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:09:50,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2019-12-07 22:09:50,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:09:50,807 INFO L225 Difference]: With dead ends: 2732 [2019-12-07 22:09:50,807 INFO L226 Difference]: Without dead ends: 1418 [2019-12-07 22:09:50,808 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 22:09:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2019-12-07 22:09:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1412. [2019-12-07 22:09:50,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1412 states. [2019-12-07 22:09:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1863 transitions. [2019-12-07 22:09:50,850 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1863 transitions. Word has length 300 [2019-12-07 22:09:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:09:50,850 INFO L462 AbstractCegarLoop]: Abstraction has 1412 states and 1863 transitions. [2019-12-07 22:09:50,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 22:09:50,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1863 transitions. [2019-12-07 22:09:50,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-12-07 22:09:50,852 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:09:50,853 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 22:09:51,053 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:09:51,053 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:09:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:09:51,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1820161861, now seen corresponding path program 1 times [2019-12-07 22:09:51,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:09:51,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593133308] [2019-12-07 22:09:51,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:09:51,063 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:09:51,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27883774] [2019-12-07 22:09:51,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:09:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:09:51,132 INFO L264 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 22:09:51,134 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:09:51,226 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 22:09:51,226 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:09:51,453 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 22:09:51,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593133308] [2019-12-07 22:09:51,453 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:09:51,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27883774] [2019-12-07 22:09:51,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1187725449] [2019-12-07 22:09:51,455 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2019-12-07 22:09:51,455 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:09:51,456 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:09:51,456 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:09:51,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:10:18,843 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:10:19,170 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 131 [2019-12-07 22:10:19,467 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-12-07 22:10:19,755 WARN L192 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2019-12-07 22:10:20,052 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:10:20,888 WARN L192 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:10:21,567 WARN L192 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2019-12-07 22:10:22,266 WARN L192 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2019-12-07 22:10:22,957 WARN L192 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2019-12-07 22:10:23,772 WARN L192 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 146 [2019-12-07 22:10:24,565 WARN L192 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 149 [2019-12-07 22:10:25,434 WARN L192 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 152 [2019-12-07 22:10:26,247 WARN L192 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 155 [2019-12-07 22:10:26,815 WARN L192 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 132 [2019-12-07 22:10:27,392 WARN L192 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 137 [2019-12-07 22:10:27,893 WARN L192 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 131 [2019-12-07 22:10:28,455 WARN L192 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2019-12-07 22:10:29,789 WARN L192 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 166 DAG size of output: 157 [2019-12-07 22:10:30,645 WARN L192 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 160 [2019-12-07 22:10:31,495 WARN L192 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2019-12-07 22:10:32,036 WARN L192 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 133 [2019-12-07 22:10:32,404 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 128 [2019-12-07 22:10:33,281 WARN L192 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 166 [2019-12-07 22:10:33,851 WARN L192 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:10:34,231 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2019-12-07 22:10:34,618 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 22:10:35,016 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 22:10:35,442 WARN L192 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 22:10:35,905 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2019-12-07 22:10:36,314 WARN L192 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 132 [2019-12-07 22:10:36,744 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2019-12-07 22:10:37,251 WARN L192 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 132 [2019-12-07 22:10:37,800 WARN L192 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 22:10:38,276 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 22:10:38,687 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 22:10:39,114 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2019-12-07 22:10:39,539 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 129 [2019-12-07 22:10:40,120 WARN L192 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:10:40,621 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 22:10:41,114 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 22:10:41,630 WARN L192 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 22:10:42,090 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:10:42,557 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 130 [2019-12-07 22:10:43,122 WARN L192 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2019-12-07 22:10:43,665 WARN L192 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-12-07 22:10:44,121 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-12-07 22:10:44,640 WARN L192 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 127 [2019-12-07 22:10:45,390 WARN L192 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2019-12-07 22:10:45,882 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:10:46,303 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:10:46,738 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 22:10:47,211 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 22:10:47,739 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 22:10:48,212 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 22:10:48,751 WARN L192 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 22:10:49,301 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 22:10:49,811 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 22:10:50,526 WARN L192 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 137 [2019-12-07 22:10:51,037 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:10:51,582 WARN L192 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 22:10:52,181 WARN L192 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 137 [2019-12-07 22:10:52,793 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 139 [2019-12-07 22:10:53,538 WARN L192 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 143 [2019-12-07 22:10:54,143 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 139 [2019-12-07 22:10:54,718 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 22:10:55,408 WARN L192 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 22:10:55,961 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:10:56,464 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:10:56,465 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:10:56,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 22:10:56,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2019-12-07 22:10:56,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737597921] [2019-12-07 22:10:56,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 22:10:56,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:10:56,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 22:10:56,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=720, Invalid=4830, Unknown=0, NotChecked=0, Total=5550 [2019-12-07 22:10:56,468 INFO L87 Difference]: Start difference. First operand 1412 states and 1863 transitions. Second operand 8 states. [2019-12-07 22:10:56,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:10:56,549 INFO L93 Difference]: Finished difference Result 2892 states and 3805 transitions. [2019-12-07 22:10:56,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 22:10:56,549 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 330 [2019-12-07 22:10:56,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:10:56,557 INFO L225 Difference]: With dead ends: 2892 [2019-12-07 22:10:56,558 INFO L226 Difference]: Without dead ends: 2381 [2019-12-07 22:10:56,560 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 911 SyntacticMatches, 4 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=720, Invalid=4830, Unknown=0, NotChecked=0, Total=5550 [2019-12-07 22:10:56,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2019-12-07 22:10:56,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 1962. [2019-12-07 22:10:56,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2019-12-07 22:10:56,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2603 transitions. [2019-12-07 22:10:56,602 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2603 transitions. Word has length 330 [2019-12-07 22:10:56,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:10:56,603 INFO L462 AbstractCegarLoop]: Abstraction has 1962 states and 2603 transitions. [2019-12-07 22:10:56,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 22:10:56,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2603 transitions. [2019-12-07 22:10:56,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2019-12-07 22:10:56,605 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:10:56,606 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 22:10:56,806 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:10:56,807 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:10:56,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:10:56,807 INFO L82 PathProgramCache]: Analyzing trace with hash -501284153, now seen corresponding path program 1 times [2019-12-07 22:10:56,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:10:56,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597831786] [2019-12-07 22:10:56,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:10:56,832 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:10:56,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321257476] [2019-12-07 22:10:56,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:10:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:10:56,915 INFO L264 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 22:10:56,918 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:10:57,114 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 22:10:57,114 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:10:57,312 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 22:10:57,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597831786] [2019-12-07 22:10:57,313 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:10:57,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321257476] [2019-12-07 22:10:57,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1785510801] [2019-12-07 22:10:57,315 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2019-12-07 22:10:57,315 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 22:10:57,315 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 22:10:57,315 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 22:10:57,315 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 22:11:56,770 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 22:11:57,098 WARN L192 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 131 [2019-12-07 22:11:57,397 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2019-12-07 22:11:57,692 WARN L192 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2019-12-07 22:11:57,984 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:11:58,812 WARN L192 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:11:59,465 WARN L192 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2019-12-07 22:12:00,145 WARN L192 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2019-12-07 22:12:00,925 WARN L192 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2019-12-07 22:12:01,675 WARN L192 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 146 [2019-12-07 22:12:02,410 WARN L192 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 149 [2019-12-07 22:12:03,164 WARN L192 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 152 [2019-12-07 22:12:04,043 WARN L192 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 155 [2019-12-07 22:12:04,530 WARN L192 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 132 [2019-12-07 22:12:05,083 WARN L192 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 137 [2019-12-07 22:12:05,475 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 131 [2019-12-07 22:12:05,912 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2019-12-07 22:12:06,748 WARN L192 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 157 [2019-12-07 22:12:07,832 WARN L192 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 160 [2019-12-07 22:12:08,668 WARN L192 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2019-12-07 22:12:09,204 WARN L192 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 133 [2019-12-07 22:12:09,774 WARN L192 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 136 [2019-12-07 22:12:10,698 WARN L192 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 166 [2019-12-07 22:12:11,057 WARN L192 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:12:11,413 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2019-12-07 22:12:11,788 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 22:12:12,174 WARN L192 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 22:12:12,574 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 22:12:13,005 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2019-12-07 22:12:13,444 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 132 [2019-12-07 22:12:14,053 WARN L192 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2019-12-07 22:12:14,527 WARN L192 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 132 [2019-12-07 22:12:14,931 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 22:12:15,346 WARN L192 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 22:12:15,808 WARN L192 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 22:12:16,281 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2019-12-07 22:12:16,715 WARN L192 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 129 [2019-12-07 22:12:17,176 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:12:17,624 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 22:12:18,096 WARN L192 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 22:12:18,600 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 22:12:19,050 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:12:19,528 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 130 [2019-12-07 22:12:20,230 WARN L192 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2019-12-07 22:12:20,718 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-12-07 22:12:21,213 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-12-07 22:12:21,775 WARN L192 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 127 [2019-12-07 22:12:22,406 WARN L192 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2019-12-07 22:12:22,986 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:12:23,510 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-12-07 22:12:23,942 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2019-12-07 22:12:24,392 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2019-12-07 22:12:24,873 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 22:12:25,324 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2019-12-07 22:12:25,776 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2019-12-07 22:12:26,246 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 138 [2019-12-07 22:12:26,768 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-12-07 22:12:27,506 WARN L192 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 137 [2019-12-07 22:12:28,000 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2019-12-07 22:12:28,512 WARN L192 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 144 [2019-12-07 22:12:29,072 WARN L192 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 137 [2019-12-07 22:12:29,629 WARN L192 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 139 [2019-12-07 22:12:30,459 WARN L192 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 144 [2019-12-07 22:12:31,450 WARN L192 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 140 [2019-12-07 22:12:31,996 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2019-12-07 22:12:32,565 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2019-12-07 22:12:33,129 WARN L192 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:12:33,629 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2019-12-07 22:12:34,165 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 132 [2019-12-07 22:12:34,172 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:12:34,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 22:12:34,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2019-12-07 22:12:34,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177975752] [2019-12-07 22:12:34,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 22:12:34,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:12:34,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 22:12:34,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=840, Invalid=5322, Unknown=0, NotChecked=0, Total=6162 [2019-12-07 22:12:34,175 INFO L87 Difference]: Start difference. First operand 1962 states and 2603 transitions. Second operand 11 states. [2019-12-07 22:12:35,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:12:35,159 INFO L93 Difference]: Finished difference Result 3900 states and 5121 transitions. [2019-12-07 22:12:35,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 22:12:35,159 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 468 [2019-12-07 22:12:35,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:12:35,166 INFO L225 Difference]: With dead ends: 3900 [2019-12-07 22:12:35,166 INFO L226 Difference]: Without dead ends: 1826 [2019-12-07 22:12:35,169 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1421 GetRequests, 1334 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2829 ImplicationChecksByTransitivity, 37.8s TimeCoverageRelationStatistics Valid=970, Invalid=6862, Unknown=0, NotChecked=0, Total=7832 [2019-12-07 22:12:35,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2019-12-07 22:12:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 917. [2019-12-07 22:12:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2019-12-07 22:12:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1187 transitions. [2019-12-07 22:12:35,195 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1187 transitions. Word has length 468 [2019-12-07 22:12:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:12:35,195 INFO L462 AbstractCegarLoop]: Abstraction has 917 states and 1187 transitions. [2019-12-07 22:12:35,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 22:12:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1187 transitions. [2019-12-07 22:12:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2019-12-07 22:12:35,198 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:12:35,198 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 22:12:35,399 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:12:35,399 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:12:35,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:12:35,400 INFO L82 PathProgramCache]: Analyzing trace with hash 2143162161, now seen corresponding path program 1 times [2019-12-07 22:12:35,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:12:35,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160244344] [2019-12-07 22:12:35,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:12:35,421 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:12:35,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256293129] [2019-12-07 22:12:35,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:12:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:12:35,520 INFO L264 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:12:35,525 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:12:35,686 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 22:12:35,687 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:12:35,851 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 22:12:35,851 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160244344] [2019-12-07 22:12:35,851 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:12:35,851 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256293129] [2019-12-07 22:12:35,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:12:35,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 22:12:35,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018247850] [2019-12-07 22:12:35,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:12:35,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:12:35,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:12:35,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:12:35,853 INFO L87 Difference]: Start difference. First operand 917 states and 1187 transitions. Second operand 4 states. [2019-12-07 22:12:35,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:12:35,945 INFO L93 Difference]: Finished difference Result 1834 states and 2374 transitions. [2019-12-07 22:12:35,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:12:35,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 632 [2019-12-07 22:12:35,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:12:35,949 INFO L225 Difference]: With dead ends: 1834 [2019-12-07 22:12:35,949 INFO L226 Difference]: Without dead ends: 919 [2019-12-07 22:12:35,950 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 22:12:35,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2019-12-07 22:12:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 917. [2019-12-07 22:12:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2019-12-07 22:12:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1179 transitions. [2019-12-07 22:12:35,973 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1179 transitions. Word has length 632 [2019-12-07 22:12:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:12:35,973 INFO L462 AbstractCegarLoop]: Abstraction has 917 states and 1179 transitions. [2019-12-07 22:12:35,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:12:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1179 transitions. [2019-12-07 22:12:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2019-12-07 22:12:35,976 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:12:35,977 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 22:12:36,177 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:12:36,177 INFO L410 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:12:36,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:12:36,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1479268056, now seen corresponding path program 2 times [2019-12-07 22:12:36,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:12:36,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451969690] [2019-12-07 22:12:36,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:12:36,197 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:12:36,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303632267] [2019-12-07 22:12:36,198 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:12:36,309 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2019-12-07 22:12:36,309 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 22:12:36,310 INFO L264 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:12:36,315 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:12:36,493 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 22:12:36,493 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:12:36,672 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 22:12:36,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451969690] [2019-12-07 22:12:36,672 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:12:36,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303632267] [2019-12-07 22:12:36,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:12:36,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 22:12:36,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487162784] [2019-12-07 22:12:36,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:12:36,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:12:36,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:12:36,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:12:36,674 INFO L87 Difference]: Start difference. First operand 917 states and 1179 transitions. Second operand 4 states. [2019-12-07 22:12:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:12:36,755 INFO L93 Difference]: Finished difference Result 1848 states and 2377 transitions. [2019-12-07 22:12:36,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:12:36,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 660 [2019-12-07 22:12:36,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:12:36,758 INFO L225 Difference]: With dead ends: 1848 [2019-12-07 22:12:36,758 INFO L226 Difference]: Without dead ends: 929 [2019-12-07 22:12:36,759 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 22:12:36,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2019-12-07 22:12:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2019-12-07 22:12:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2019-12-07 22:12:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1193 transitions. [2019-12-07 22:12:36,783 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1193 transitions. Word has length 660 [2019-12-07 22:12:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:12:36,783 INFO L462 AbstractCegarLoop]: Abstraction has 929 states and 1193 transitions. [2019-12-07 22:12:36,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:12:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1193 transitions. [2019-12-07 22:12:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2019-12-07 22:12:36,786 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:12:36,786 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 22:12:36,987 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:12:36,987 INFO L410 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:12:36,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:12:36,988 INFO L82 PathProgramCache]: Analyzing trace with hash 930704099, now seen corresponding path program 1 times [2019-12-07 22:12:36,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 22:12:36,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695971232] [2019-12-07 22:12:36,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 22:12:37,008 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 22:12:37,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425886647] [2019-12-07 22:12:37,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/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 22:12:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:12:37,110 INFO L264 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:12:37,114 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:12:37,301 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 22:12:37,301 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:12:37,483 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 22:12:37,483 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695971232] [2019-12-07 22:12:37,483 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 22:12:37,483 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425886647] [2019-12-07 22:12:37,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:12:37,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 22:12:37,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037227910] [2019-12-07 22:12:37,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:12:37,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 22:12:37,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:12:37,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:12:37,485 INFO L87 Difference]: Start difference. First operand 929 states and 1193 transitions. Second operand 4 states. [2019-12-07 22:12:37,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:12:37,580 INFO L93 Difference]: Finished difference Result 1407 states and 1806 transitions. [2019-12-07 22:12:37,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 22:12:37,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 672 [2019-12-07 22:12:37,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:12:37,581 INFO L225 Difference]: With dead ends: 1407 [2019-12-07 22:12:37,581 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 22:12:37,582 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 22:12:37,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 22:12:37,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 22:12:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 22:12:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 22:12:37,582 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 672 [2019-12-07 22:12:37,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:12:37,583 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 22:12:37,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:12:37,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 22:12:37,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 22:12:37,783 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 22:12:37,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 22:12:37,917 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 162 [2019-12-07 22:12:38,125 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 162 [2019-12-07 22:12:38,269 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 162 [2019-12-07 22:12:38,393 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 162 [2019-12-07 22:12:38,595 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 49 [2019-12-07 22:12:39,077 WARN L192 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 81 [2019-12-07 22:12:39,295 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 44 [2019-12-07 22:12:39,419 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 44 [2019-12-07 22:12:39,557 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2019-12-07 22:12:39,736 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2019-12-07 22:12:40,441 WARN L192 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2019-12-07 22:12:40,660 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2019-12-07 22:12:40,848 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-12-07 22:12:42,137 WARN L192 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 142 DAG size of output: 86 [2019-12-07 22:12:42,490 WARN L192 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 44 [2019-12-07 22:12:42,888 WARN L192 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 54 [2019-12-07 22:12:43,094 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-12-07 22:12:43,921 WARN L192 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 81 [2019-12-07 22:12:44,051 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 42 [2019-12-07 22:12:44,865 WARN L192 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 81 [2019-12-07 22:12:45,034 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2019-12-07 22:12:45,196 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 44 [2019-12-07 22:12:45,477 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 37 [2019-12-07 22:12:45,480 INFO L246 CegarLoopResult]: For program point L399(lines 399 405) no Hoare annotation was computed. [2019-12-07 22:12:45,480 INFO L242 CegarLoopResult]: At program point L201(lines 201 591) 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 22:12:45,480 INFO L246 CegarLoopResult]: For program point L168(lines 168 602) no Hoare annotation was computed. [2019-12-07 22:12:45,480 INFO L246 CegarLoopResult]: For program point L135(lines 135 613) no Hoare annotation was computed. [2019-12-07 22:12:45,480 INFO L242 CegarLoopResult]: At program point L102(lines 102 624) the Hoare annotation is: (let ((.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse5 (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0))) (.cse1 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse6 (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (.cse7 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0)) (.cse0 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0))) (or (= ULTIMATE.start_ssl3_accept_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (and .cse1 (let ((.cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464))) (or (and .cse2 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and .cse2 .cse0 .cse3)))) (and .cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481)) .cse5 .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657)) .cse0 (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 .cse4 .cse5 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0) (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse6) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) (and .cse1 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448) .cse7 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (and (= ULTIMATE.start_ssl3_accept_~s__state~0 8544) .cse0) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8528)) (and .cse0 .cse6) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) (not .cse7)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8560)))) [2019-12-07 22:12:45,480 INFO L246 CegarLoopResult]: For program point L466(lines 466 470) no Hoare annotation was computed. [2019-12-07 22:12:45,481 INFO L242 CegarLoopResult]: At program point L202(lines 198 592) 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) (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) .cse0 (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)))) [2019-12-07 22:12:45,481 INFO L246 CegarLoopResult]: For program point L500-2(lines 209 586) no Hoare annotation was computed. [2019-12-07 22:12:45,481 INFO L246 CegarLoopResult]: For program point L237(lines 237 242) no Hoare annotation was computed. [2019-12-07 22:12:45,481 INFO L246 CegarLoopResult]: For program point L171(lines 171 601) no Hoare annotation was computed. [2019-12-07 22:12:45,481 INFO L246 CegarLoopResult]: For program point L138(lines 138 612) no Hoare annotation was computed. [2019-12-07 22:12:45,481 INFO L246 CegarLoopResult]: For program point L105(lines 105 623) no Hoare annotation was computed. [2019-12-07 22:12:45,481 INFO L242 CegarLoopResult]: At program point L172(lines 168 602) 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 (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (<= 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 22:12:45,481 INFO L242 CegarLoopResult]: At program point L139(lines 135 613) 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 22:12:45,481 INFO L246 CegarLoopResult]: For program point L272(lines 272 276) no Hoare annotation was computed. [2019-12-07 22:12:45,482 INFO L246 CegarLoopResult]: For program point L306-2(lines 209 586) no Hoare annotation was computed. [2019-12-07 22:12:45,482 INFO L246 CegarLoopResult]: For program point L174(lines 174 600) no Hoare annotation was computed. [2019-12-07 22:12:45,482 INFO L246 CegarLoopResult]: For program point L141(lines 141 611) no Hoare annotation was computed. [2019-12-07 22:12:45,482 INFO L246 CegarLoopResult]: For program point L108(lines 108 622) no Hoare annotation was computed. [2019-12-07 22:12:45,482 INFO L246 CegarLoopResult]: For program point L439-1(lines 439 451) no Hoare annotation was computed. [2019-12-07 22:12:45,482 INFO L249 CegarLoopResult]: At program point L671(lines 64 673) the Hoare annotation is: true [2019-12-07 22:12:45,482 INFO L246 CegarLoopResult]: For program point L539(lines 539 544) no Hoare annotation was computed. [2019-12-07 22:12:45,482 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 22:12:45,482 INFO L246 CegarLoopResult]: For program point L341-2(lines 209 586) no Hoare annotation was computed. [2019-12-07 22:12:45,482 INFO L246 CegarLoopResult]: For program point L177(lines 177 599) no Hoare annotation was computed. [2019-12-07 22:12:45,482 INFO L246 CegarLoopResult]: For program point L144(lines 144 610) no Hoare annotation was computed. [2019-12-07 22:12:45,483 INFO L246 CegarLoopResult]: For program point L111(lines 111 621) no Hoare annotation was computed. [2019-12-07 22:12:45,483 INFO L246 CegarLoopResult]: For program point L442(lines 442 447) no Hoare annotation was computed. [2019-12-07 22:12:45,483 INFO L242 CegarLoopResult]: At program point L178(lines 174 600) 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 (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .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 22:12:45,483 INFO L242 CegarLoopResult]: At program point L145(lines 141 611) 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 (let ((.cse10 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0))) (or (and .cse0 .cse1 .cse2 (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) .cse3 .cse10 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse10 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)))) (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)))) [2019-12-07 22:12:45,483 INFO L246 CegarLoopResult]: For program point L410(lines 410 414) no Hoare annotation was computed. [2019-12-07 22:12:45,483 INFO L242 CegarLoopResult]: At program point L212(lines 105 623) 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 22:12:45,483 INFO L246 CegarLoopResult]: For program point L180(lines 180 598) no Hoare annotation was computed. [2019-12-07 22:12:45,483 INFO L246 CegarLoopResult]: For program point L147(lines 147 609) no Hoare annotation was computed. [2019-12-07 22:12:45,483 INFO L246 CegarLoopResult]: For program point L114(lines 114 620) no Hoare annotation was computed. [2019-12-07 22:12:45,484 INFO L246 CegarLoopResult]: For program point L478(lines 478 482) no Hoare annotation was computed. [2019-12-07 22:12:45,484 INFO L246 CegarLoopResult]: For program point L83-1(lines 64 673) no Hoare annotation was computed. [2019-12-07 22:12:45,484 INFO L246 CegarLoopResult]: For program point L183(lines 183 597) no Hoare annotation was computed. [2019-12-07 22:12:45,484 INFO L246 CegarLoopResult]: For program point L150(lines 150 608) no Hoare annotation was computed. [2019-12-07 22:12:45,484 INFO L246 CegarLoopResult]: For program point L117(lines 117 619) no Hoare annotation was computed. [2019-12-07 22:12:45,484 INFO L246 CegarLoopResult]: For program point L349(lines 349 380) no Hoare annotation was computed. [2019-12-07 22:12:45,484 INFO L242 CegarLoopResult]: At program point L184(lines 180 598) 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 (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) .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 22:12:45,484 INFO L242 CegarLoopResult]: At program point L151(lines 147 609) 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 22:12:45,484 INFO L246 CegarLoopResult]: For program point L217-2(lines 209 586) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L549(lines 549 553) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L186(lines 186 596) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L153(lines 153 607) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L120(lines 120 618) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L242 CegarLoopResult]: At program point L550(lines 64 673) the Hoare annotation is: false [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L352(lines 352 379) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L352-1(lines 352 379) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L242 CegarLoopResult]: At program point L121(lines 117 619) 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 22:12:45,485 INFO L246 CegarLoopResult]: For program point L353(lines 353 376) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L254(lines 254 266) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L255(lines 255 260) no Hoare annotation was computed. [2019-12-07 22:12:45,485 INFO L246 CegarLoopResult]: For program point L189(lines 189 595) no Hoare annotation was computed. [2019-12-07 22:12:45,486 INFO L246 CegarLoopResult]: For program point L156(lines 156 606) no Hoare annotation was computed. [2019-12-07 22:12:45,486 INFO L242 CegarLoopResult]: At program point L123(lines 123 617) the Hoare annotation is: (let ((.cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481))) (.cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8480))) (.cse5 (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0))) (.cse0 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse8 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0)) (.cse7 (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (.cse2 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0))) (or (= ULTIMATE.start_ssl3_accept_~s__state~0 3) (and (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) (let ((.cse1 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464))) (or (and .cse0 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse1) (and .cse0 .cse2 .cse1)))) (and .cse3 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) .cse4 .cse5 .cse0 (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)) .cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8545))) (and .cse3 .cse5 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0) (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse4 .cse2 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576) .cse6) (and (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse7) (and .cse2 (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) (and .cse4 (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) .cse6 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 12292)) (not .cse8)) (and (= ULTIMATE.start_ssl3_accept_~s__state~0 8544) .cse2) (and (or (and .cse5 .cse0 .cse8) (and .cse8 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0))) (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448)) (and .cse2 .cse7) (and .cse2 (= ULTIMATE.start_ssl3_accept_~s__state~0 8528)) (and .cse2 (= ULTIMATE.start_ssl3_accept_~s__state~0 8560)))) [2019-12-07 22:12:45,486 INFO L246 CegarLoopResult]: For program point L520(lines 520 525) no Hoare annotation was computed. [2019-12-07 22:12:45,486 INFO L246 CegarLoopResult]: For program point L388(lines 388 419) no Hoare annotation was computed. [2019-12-07 22:12:45,486 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 22:12:45,486 INFO L246 CegarLoopResult]: For program point L289-2(lines 209 586) no Hoare annotation was computed. [2019-12-07 22:12:45,486 INFO L242 CegarLoopResult]: At program point L190(lines 186 596) 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 (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0) .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 22:12:45,486 INFO L242 CegarLoopResult]: At program point L157(lines 153 607) 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 22:12:45,487 INFO L242 CegarLoopResult]: At program point L587(lines 99 655) the Hoare annotation is: (let ((.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse5 (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0))) (.cse1 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse6 (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (.cse7 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0)) (.cse0 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0))) (or (= ULTIMATE.start_ssl3_accept_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (and .cse1 (let ((.cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464))) (or (and .cse2 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and .cse2 .cse0 .cse3)))) (and .cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481)) .cse5 .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657)) .cse0 (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 .cse4 .cse5 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0) (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse6) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) (and .cse1 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448) .cse7 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (and (= ULTIMATE.start_ssl3_accept_~s__state~0 8544) .cse0) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8528)) (and .cse0 .cse6) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) (not .cse7)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8560)))) [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L554(lines 554 558) no Hoare annotation was computed. [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L389(lines 389 395) no Hoare annotation was computed. [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L356(lines 356 375) no Hoare annotation was computed. [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L489(lines 489 493) no Hoare annotation was computed. [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L357-2(lines 356 373) no Hoare annotation was computed. [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L192(lines 192 594) no Hoare annotation was computed. [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L159(lines 159 605) no Hoare annotation was computed. [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L126(lines 126 616) no Hoare annotation was computed. [2019-12-07 22:12:45,487 INFO L246 CegarLoopResult]: For program point L457(lines 457 461) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L325-1(lines 325 334) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L249 CegarLoopResult]: At program point L656(lines 98 657) the Hoare annotation is: true [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L195(lines 195 593) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L162(lines 162 604) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L129(lines 129 615) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L625(lines 625 653) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L229(lines 229 246) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L242 CegarLoopResult]: At program point L196(lines 192 594) 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) (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (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 22:12:45,488 INFO L242 CegarLoopResult]: At program point L163(lines 159 605) 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 22:12:45,488 INFO L246 CegarLoopResult]: For program point L229-2(lines 209 586) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L626(lines 626 650) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L527-2(lines 209 586) no Hoare annotation was computed. [2019-12-07 22:12:45,488 INFO L246 CegarLoopResult]: For program point L329(lines 329 333) no Hoare annotation was computed. [2019-12-07 22:12:45,489 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 667) no Hoare annotation was computed. [2019-12-07 22:12:45,489 INFO L246 CegarLoopResult]: For program point L627(lines 627 636) no Hoare annotation was computed. [2019-12-07 22:12:45,489 INFO L246 CegarLoopResult]: For program point L627-2(lines 626 648) no Hoare annotation was computed. [2019-12-07 22:12:45,489 INFO L246 CegarLoopResult]: For program point L462(lines 462 473) no Hoare annotation was computed. [2019-12-07 22:12:45,489 INFO L246 CegarLoopResult]: For program point L429(lines 429 433) no Hoare annotation was computed. [2019-12-07 22:12:45,489 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 22:12:45,489 INFO L246 CegarLoopResult]: For program point L231(lines 231 236) no Hoare annotation was computed. [2019-12-07 22:12:45,489 INFO L246 CegarLoopResult]: For program point L198(lines 198 592) no Hoare annotation was computed. [2019-12-07 22:12:45,489 INFO L246 CegarLoopResult]: For program point L165(lines 165 603) no Hoare annotation was computed. [2019-12-07 22:12:45,489 INFO L246 CegarLoopResult]: For program point L132(lines 132 614) no Hoare annotation was computed. [2019-12-07 22:12:45,490 INFO L242 CegarLoopResult]: At program point L99-2(lines 99 655) the Hoare annotation is: (let ((.cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8448))) (.cse4 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8672)) (.cse5 (not (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0))) (.cse1 (<= 8448 ULTIMATE.start_ssl3_accept_~s__state~0)) (.cse6 (= ULTIMATE.start_ssl3_accept_~s__state~0 8496)) (.cse7 (= 0 ULTIMATE.start_ssl3_accept_~s__hit~0)) (.cse0 (= 2 ULTIMATE.start_ssl3_accept_~blastFlag~0))) (or (= ULTIMATE.start_ssl3_accept_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8576)) (and .cse1 (let ((.cse3 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8464))) (or (and .cse2 (= 0 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse3) (and .cse2 .cse0 .cse3)))) (and .cse4 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8561)) (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8481)) .cse5 .cse2 (not (= ULTIMATE.start_ssl3_accept_~s__state~0 8657)) .cse0 (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 .cse4 .cse5 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~0) (= 3 ULTIMATE.start_ssl3_accept_~blastFlag~0)) (and (= 1 ULTIMATE.start_ssl3_accept_~blastFlag~0) .cse6) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8512)) (and .cse1 (<= ULTIMATE.start_ssl3_accept_~s__state~0 8448) .cse7 (= 3 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0)) (and (= ULTIMATE.start_ssl3_accept_~s__state~0 8544) .cse0) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8528)) (and .cse0 .cse6) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~0 3) (not .cse7)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~0 8560)))) [2019-12-07 22:12:45,490 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 22:12:45,490 INFO L242 CegarLoopResult]: At program point L166(lines 165 603) 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 22:12:45,490 INFO L242 CegarLoopResult]: At program point L133(lines 126 616) 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 22:12:45,490 INFO L246 CegarLoopResult]: For program point L629(lines 629 633) no Hoare annotation was computed. [2019-12-07 22:12:45,490 INFO L246 CegarLoopResult]: For program point L365(lines 365 369) no Hoare annotation was computed. [2019-12-07 22:12:45,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:12:45 BoogieIcfgContainer [2019-12-07 22:12:45,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 22:12:45,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 22:12:45,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 22:12:45,526 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 22:12:45,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:46" (3/4) ... [2019-12-07 22:12:45,529 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 22:12:45,545 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2019-12-07 22:12:45,546 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 22:12:45,547 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 22:12:45,632 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4d7cddd-1b08-4dfd-a82a-4dd6272e12fb/bin/utaipan/witness.graphml [2019-12-07 22:12:45,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 22:12:45,633 INFO L168 Benchmark]: Toolchain (without parser) took 240022.94 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 443.5 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -284.7 MB). Peak memory consumption was 158.8 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:45,634 INFO L168 Benchmark]: CDTParser took 0.17 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 22:12:45,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:45,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.28 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 22:12:45,634 INFO L168 Benchmark]: Boogie Preprocessor took 25.72 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 22:12:45,634 INFO L168 Benchmark]: RCFGBuilder took 544.97 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: 82.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:45,635 INFO L168 Benchmark]: TraceAbstraction took 239048.63 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 335.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -231.2 MB). Peak memory consumption was 711.7 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:45,635 INFO L168 Benchmark]: Witness Printer took 106.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 22:12:45,636 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 257.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.28 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 25.72 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 544.97 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: 82.3 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 239048.63 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 335.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -231.2 MB). Peak memory consumption was 711.7 MB. Max. memory is 11.5 GB. * Witness Printer took 106.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB 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: 667]: 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: (((((((((((s__state == 3 || ((s__s3__tmp__next_state___0 <= 8576 && 2 == blastFlag) && s__state <= 8576)) || (8448 <= s__state && (((!(s__state == 8448) && 0 == blastFlag) && s__state <= 8464) || ((!(s__state == 8448) && 2 == blastFlag) && s__state <= 8464)))) || ((((((((((s__state <= 8672 && !(s__state == 8561)) && !(s__state == 8481)) && !(8640 == s__s3__tmp__next_state___0)) && !(s__state == 8448)) && !(s__state == 8657)) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 8497)) && !(s__state == 8480)) && !(s__state == 8545))) || (((s__state <= 8672 && !(8640 == s__s3__tmp__next_state___0)) && 8672 <= s__state) && 3 == blastFlag)) || (1 == blastFlag && s__state == 8496)) || (2 == blastFlag && s__state == 8512)) || (((8448 <= s__state && s__state <= 8448) && 0 == s__hit) && 3 == s__s3__tmp__next_state___0)) || (s__state == 8544 && 2 == blastFlag)) || (2 == blastFlag && s__state == 8528)) || (2 == blastFlag && s__state == 8496)) || (blastFlag <= 3 && !(0 == s__hit))) || (2 == blastFlag && s__state == 8560) - 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: 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: 186]: Loop Invariant Derived loop invariant: (((((((((((((!(8640 == s__s3__tmp__next_state___0) && !(s__state == 8512)) && 8448 <= s__state) && !(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 && !(8640 == s__s3__tmp__next_state___0)) && 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: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: (((((((((((((!(8640 == s__s3__tmp__next_state___0) && 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)) || (((((((((((!(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: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: (((((((((((s__state == 3 || (8448 <= s__state && (((!(s__state == 8448) && 0 == blastFlag) && s__state <= 8464) || ((!(s__state == 8448) && 2 == blastFlag) && s__state <= 8464)))) || ((((((((((s__state <= 8672 && !(s__state == 8561)) && !(s__state == 8481)) && !(8640 == s__s3__tmp__next_state___0)) && !(s__state == 8448)) && !(s__state == 8657)) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 8497)) && !(s__state == 8480)) && !(s__state == 8545))) || (((s__state <= 8672 && !(8640 == s__s3__tmp__next_state___0)) && 8672 <= s__state) && 3 == blastFlag)) || ((((s__s3__tmp__next_state___0 <= 8576 && !(s__state == 8481)) && 2 == blastFlag) && s__state <= 8576) && !(s__state == 8480))) || (1 == blastFlag && s__state == 8496)) || (2 == blastFlag && s__state == 8512)) || ((((!(s__state == 8481) && blastFlag <= 3) && !(s__state == 8480)) && !(s__state == 12292)) && !(0 == s__hit))) || (s__state == 8544 && 2 == blastFlag)) || ((((!(8640 == s__s3__tmp__next_state___0) && !(s__state == 8448)) && 0 == s__hit) || (0 == s__hit && 3 == s__s3__tmp__next_state___0)) && s__state <= 8448)) || (2 == blastFlag && s__state == 8496)) || (2 == blastFlag && s__state == 8528)) || (2 == blastFlag && s__state == 8560) - 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)) && !(8640 == s__s3__tmp__next_state___0)) && !(s__state == 8448)) && 2 == 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)) && !(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)) && s__state == 8512)) && 8448 <= s__state) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((((((((((((!(8640 == s__s3__tmp__next_state___0) && 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)) || (((((((((((!(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: 99]: Loop Invariant Derived loop invariant: (((((((((((s__state == 3 || ((s__s3__tmp__next_state___0 <= 8576 && 2 == blastFlag) && s__state <= 8576)) || (8448 <= s__state && (((!(s__state == 8448) && 0 == blastFlag) && s__state <= 8464) || ((!(s__state == 8448) && 2 == blastFlag) && s__state <= 8464)))) || ((((((((((s__state <= 8672 && !(s__state == 8561)) && !(s__state == 8481)) && !(8640 == s__s3__tmp__next_state___0)) && !(s__state == 8448)) && !(s__state == 8657)) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 8497)) && !(s__state == 8480)) && !(s__state == 8545))) || (((s__state <= 8672 && !(8640 == s__s3__tmp__next_state___0)) && 8672 <= s__state) && 3 == blastFlag)) || (1 == blastFlag && s__state == 8496)) || (2 == blastFlag && s__state == 8512)) || (((8448 <= s__state && s__state <= 8448) && 0 == s__hit) && 3 == s__s3__tmp__next_state___0)) || (s__state == 8544 && 2 == blastFlag)) || (2 == blastFlag && s__state == 8528)) || (2 == blastFlag && s__state == 8496)) || (blastFlag <= 3 && !(0 == s__hit))) || (2 == blastFlag && s__state == 8560) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - 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: (((((((((((s__state == 3 || ((s__s3__tmp__next_state___0 <= 8576 && 2 == blastFlag) && s__state <= 8576)) || (8448 <= s__state && (((!(s__state == 8448) && 0 == blastFlag) && s__state <= 8464) || ((!(s__state == 8448) && 2 == blastFlag) && s__state <= 8464)))) || ((((((((((s__state <= 8672 && !(s__state == 8561)) && !(s__state == 8481)) && !(8640 == s__s3__tmp__next_state___0)) && !(s__state == 8448)) && !(s__state == 8657)) && 2 == blastFlag) && !(s__state == 8672)) && !(s__state == 8497)) && !(s__state == 8480)) && !(s__state == 8545))) || (((s__state <= 8672 && !(8640 == s__s3__tmp__next_state___0)) && 8672 <= s__state) && 3 == blastFlag)) || (1 == blastFlag && s__state == 8496)) || (2 == blastFlag && s__state == 8512)) || (((8448 <= s__state && s__state <= 8448) && 0 == s__hit) && 3 == s__s3__tmp__next_state___0)) || (s__state == 8544 && 2 == blastFlag)) || (2 == blastFlag && s__state == 8528)) || (2 == blastFlag && s__state == 8496)) || (blastFlag <= 3 && !(0 == s__hit))) || (2 == blastFlag && s__state == 8560) - 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)) || (((((((((((((!(8640 == s__s3__tmp__next_state___0) && 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: 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 && !(8640 == s__s3__tmp__next_state___0)) && (((((!(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: 231.2s, OverallIterations: 30, TraceHistogramMax: 25, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.6s, HoareTripleCheckerStatistics: 3925 SDtfs, 4263 SDslu, 3471 SDs, 0 SdLazy, 5004 SolverSat, 1253 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9891 GetRequests, 9536 SyntacticMatches, 31 SemanticMatches, 324 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8569 ImplicationChecksByTransitivity, 111.5s 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, 2334 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 26 PreInvPairs, 306 NumberOfFragments, 2351 HoareAnnotationTreeSize, 26 FomulaSimplifications, 96922 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 26 FomulaSimplificationsInter, 31567 FormulaSimplificationTreeSizeReductionInter, 7.0s 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, 6420 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...