./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.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_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb19220a89a4de9b41ceda2b5f420af7272fc928 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:09:54,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:09:54,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:09:54,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:09:54,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:09:54,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:09:54,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:09:54,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:09:54,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:09:54,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:09:54,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:09:54,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:09:54,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:09:54,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:09:54,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:09:54,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:09:54,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:09:54,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:09:54,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:09:54,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:09:54,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:09:54,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:09:54,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:09:54,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:09:54,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:09:54,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:09:54,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:09:54,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:09:54,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:09:54,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:09:54,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:09:54,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:09:54,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:09:54,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:09:54,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:09:54,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:09:54,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:09:54,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:09:54,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:09:54,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:09:54,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:09:54,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:09:54,121 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:09:54,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:09:54,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:09:54,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:09:54,122 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:09:54,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:09:54,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:09:54,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:09:54,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:09:54,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:09:54,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:09:54,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:09:54,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:09:54,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:09:54,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:09:54,124 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:09:54,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:09:54,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:09:54,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:09:54,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:09:54,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:09:54,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:09:54,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:09:54,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:09:54,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:09:54,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:09:54,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:09:54,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:09:54,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:09:54,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer 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 -> Automizer 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 -> bb19220a89a4de9b41ceda2b5f420af7272fc928 [2019-12-07 14:09:54,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:09:54,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:09:54,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:09:54,241 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:09:54,241 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:09:54,242 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2019-12-07 14:09:54,282 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/data/fa9746699/083f8956ebbc410696f9dbb6431630f2/FLAGf8d3368ee [2019-12-07 14:09:54,694 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:09:54,695 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2019-12-07 14:09:54,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/data/fa9746699/083f8956ebbc410696f9dbb6431630f2/FLAGf8d3368ee [2019-12-07 14:09:55,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/data/fa9746699/083f8956ebbc410696f9dbb6431630f2 [2019-12-07 14:09:55,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:09:55,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:09:55,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:09:55,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:09:55,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:09:55,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26cab6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55, skipping insertion in model container [2019-12-07 14:09:55,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:09:55,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:09:55,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:09:55,329 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:09:55,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:09:55,380 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:09:55,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55 WrapperNode [2019-12-07 14:09:55,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:09:55,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:09:55,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:09:55,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:09:55,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:09:55,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:09:55,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:09:55,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:09:55,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... [2019-12-07 14:09:55,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:09:55,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:09:55,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:09:55,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:09:55,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/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 14:09:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:09:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:09:55,547 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 14:09:55,827 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2019-12-07 14:09:55,827 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2019-12-07 14:09:55,827 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:09:55,828 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 14:09:55,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:09:55 BoogieIcfgContainer [2019-12-07 14:09:55,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:09:55,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:09:55,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:09:55,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:09:55,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:09:55" (1/3) ... [2019-12-07 14:09:55,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe0bb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:09:55, skipping insertion in model container [2019-12-07 14:09:55,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:55" (2/3) ... [2019-12-07 14:09:55,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe0bb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:09:55, skipping insertion in model container [2019-12-07 14:09:55,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:09:55" (3/3) ... [2019-12-07 14:09:55,833 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2019-12-07 14:09:55,839 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:09:55,844 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:09:55,851 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:09:55,867 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:09:55,867 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:09:55,867 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:09:55,867 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:09:55,867 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:09:55,867 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:09:55,867 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:09:55,868 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:09:55,879 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-12-07 14:09:55,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 14:09:55,884 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:55,884 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] [2019-12-07 14:09:55,884 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:55,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:55,888 INFO L82 PathProgramCache]: Analyzing trace with hash 511659491, now seen corresponding path program 1 times [2019-12-07 14:09:55,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:55,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500071158] [2019-12-07 14:09:55,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:56,011 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 14:09:56,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500071158] [2019-12-07 14:09:56,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:56,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:09:56,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329965369] [2019-12-07 14:09:56,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:56,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:56,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:56,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:56,026 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2019-12-07 14:09:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:56,127 INFO L93 Difference]: Finished difference Result 246 states and 422 transitions. [2019-12-07 14:09:56,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:56,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 14:09:56,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:56,136 INFO L225 Difference]: With dead ends: 246 [2019-12-07 14:09:56,136 INFO L226 Difference]: Without dead ends: 112 [2019-12-07 14:09:56,139 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 14:09:56,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-12-07 14:09:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2019-12-07 14:09:56,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-12-07 14:09:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 170 transitions. [2019-12-07 14:09:56,169 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 170 transitions. Word has length 24 [2019-12-07 14:09:56,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:56,169 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 170 transitions. [2019-12-07 14:09:56,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:56,169 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 170 transitions. [2019-12-07 14:09:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 14:09:56,170 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:56,170 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:56,170 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:56,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:56,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1971493731, now seen corresponding path program 1 times [2019-12-07 14:09:56,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:56,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952150835] [2019-12-07 14:09:56,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:09:56,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952150835] [2019-12-07 14:09:56,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:56,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:56,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199742410] [2019-12-07 14:09:56,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:56,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:56,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:56,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:56,216 INFO L87 Difference]: Start difference. First operand 112 states and 170 transitions. Second operand 3 states. [2019-12-07 14:09:56,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:56,297 INFO L93 Difference]: Finished difference Result 232 states and 355 transitions. [2019-12-07 14:09:56,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:56,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2019-12-07 14:09:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:56,298 INFO L225 Difference]: With dead ends: 232 [2019-12-07 14:09:56,298 INFO L226 Difference]: Without dead ends: 130 [2019-12-07 14:09:56,299 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 14:09:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-12-07 14:09:56,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2019-12-07 14:09:56,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-12-07 14:09:56,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 190 transitions. [2019-12-07 14:09:56,307 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 190 transitions. Word has length 36 [2019-12-07 14:09:56,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:56,307 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 190 transitions. [2019-12-07 14:09:56,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:56,308 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 190 transitions. [2019-12-07 14:09:56,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-07 14:09:56,309 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:56,309 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-12-07 14:09:56,309 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:56,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:56,309 INFO L82 PathProgramCache]: Analyzing trace with hash 441356492, now seen corresponding path program 1 times [2019-12-07 14:09:56,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:56,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464179393] [2019-12-07 14:09:56,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 14:09:56,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464179393] [2019-12-07 14:09:56,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:56,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:56,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421495087] [2019-12-07 14:09:56,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:56,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:56,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:56,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:56,356 INFO L87 Difference]: Start difference. First operand 127 states and 190 transitions. Second operand 3 states. [2019-12-07 14:09:56,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:56,445 INFO L93 Difference]: Finished difference Result 265 states and 401 transitions. [2019-12-07 14:09:56,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:56,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2019-12-07 14:09:56,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:56,447 INFO L225 Difference]: With dead ends: 265 [2019-12-07 14:09:56,447 INFO L226 Difference]: Without dead ends: 148 [2019-12-07 14:09:56,448 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 14:09:56,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-12-07 14:09:56,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2019-12-07 14:09:56,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-07 14:09:56,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 212 transitions. [2019-12-07 14:09:56,458 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 212 transitions. Word has length 50 [2019-12-07 14:09:56,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:56,458 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 212 transitions. [2019-12-07 14:09:56,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:56,458 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 212 transitions. [2019-12-07 14:09:56,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-12-07 14:09:56,460 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:56,461 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-12-07 14:09:56,461 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:56,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:56,461 INFO L82 PathProgramCache]: Analyzing trace with hash -394489400, now seen corresponding path program 1 times [2019-12-07 14:09:56,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:56,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312619305] [2019-12-07 14:09:56,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-12-07 14:09:56,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312619305] [2019-12-07 14:09:56,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:56,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:56,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520997585] [2019-12-07 14:09:56,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:56,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:56,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:56,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:56,529 INFO L87 Difference]: Start difference. First operand 144 states and 212 transitions. Second operand 3 states. [2019-12-07 14:09:56,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:56,559 INFO L93 Difference]: Finished difference Result 410 states and 605 transitions. [2019-12-07 14:09:56,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:56,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-12-07 14:09:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:56,563 INFO L225 Difference]: With dead ends: 410 [2019-12-07 14:09:56,563 INFO L226 Difference]: Without dead ends: 276 [2019-12-07 14:09:56,564 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 14:09:56,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2019-12-07 14:09:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2019-12-07 14:09:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-12-07 14:09:56,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 405 transitions. [2019-12-07 14:09:56,576 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 405 transitions. Word has length 67 [2019-12-07 14:09:56,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:56,576 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 405 transitions. [2019-12-07 14:09:56,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 405 transitions. [2019-12-07 14:09:56,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-12-07 14:09:56,579 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:56,579 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1] [2019-12-07 14:09:56,579 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:56,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:56,579 INFO L82 PathProgramCache]: Analyzing trace with hash 625494152, now seen corresponding path program 1 times [2019-12-07 14:09:56,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:56,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598357558] [2019-12-07 14:09:56,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-12-07 14:09:56,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598357558] [2019-12-07 14:09:56,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:56,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:56,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607809662] [2019-12-07 14:09:56,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:56,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:56,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:56,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:56,626 INFO L87 Difference]: Start difference. First operand 276 states and 405 transitions. Second operand 3 states. [2019-12-07 14:09:56,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:56,725 INFO L93 Difference]: Finished difference Result 590 states and 878 transitions. [2019-12-07 14:09:56,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:56,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2019-12-07 14:09:56,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:56,728 INFO L225 Difference]: With dead ends: 590 [2019-12-07 14:09:56,728 INFO L226 Difference]: Without dead ends: 324 [2019-12-07 14:09:56,729 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 14:09:56,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-12-07 14:09:56,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 318. [2019-12-07 14:09:56,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2019-12-07 14:09:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 457 transitions. [2019-12-07 14:09:56,742 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 457 transitions. Word has length 85 [2019-12-07 14:09:56,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:56,742 INFO L462 AbstractCegarLoop]: Abstraction has 318 states and 457 transitions. [2019-12-07 14:09:56,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:56,742 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 457 transitions. [2019-12-07 14:09:56,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-12-07 14:09:56,744 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:56,745 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 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] [2019-12-07 14:09:56,745 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:56,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:56,745 INFO L82 PathProgramCache]: Analyzing trace with hash 743834560, now seen corresponding path program 1 times [2019-12-07 14:09:56,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:56,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112115030] [2019-12-07 14:09:56,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-12-07 14:09:56,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112115030] [2019-12-07 14:09:56,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:56,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:56,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121599197] [2019-12-07 14:09:56,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:56,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:56,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:56,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:56,804 INFO L87 Difference]: Start difference. First operand 318 states and 457 transitions. Second operand 3 states. [2019-12-07 14:09:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:56,839 INFO L93 Difference]: Finished difference Result 473 states and 680 transitions. [2019-12-07 14:09:56,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:56,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-12-07 14:09:56,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:56,842 INFO L225 Difference]: With dead ends: 473 [2019-12-07 14:09:56,842 INFO L226 Difference]: Without dead ends: 471 [2019-12-07 14:09:56,842 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 14:09:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2019-12-07 14:09:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2019-12-07 14:09:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2019-12-07 14:09:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 678 transitions. [2019-12-07 14:09:56,853 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 678 transitions. Word has length 105 [2019-12-07 14:09:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:56,853 INFO L462 AbstractCegarLoop]: Abstraction has 471 states and 678 transitions. [2019-12-07 14:09:56,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 678 transitions. [2019-12-07 14:09:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-12-07 14:09:56,854 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:56,855 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 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] [2019-12-07 14:09:56,855 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:56,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:56,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1167688199, now seen corresponding path program 1 times [2019-12-07 14:09:56,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:56,855 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950720719] [2019-12-07 14:09:56,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:56,898 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-12-07 14:09:56,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950720719] [2019-12-07 14:09:56,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:56,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:56,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130208083] [2019-12-07 14:09:56,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:56,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:56,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:56,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:56,899 INFO L87 Difference]: Start difference. First operand 471 states and 678 transitions. Second operand 3 states. [2019-12-07 14:09:57,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:57,019 INFO L93 Difference]: Finished difference Result 1082 states and 1605 transitions. [2019-12-07 14:09:57,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:57,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-12-07 14:09:57,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:57,023 INFO L225 Difference]: With dead ends: 1082 [2019-12-07 14:09:57,023 INFO L226 Difference]: Without dead ends: 618 [2019-12-07 14:09:57,024 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 14:09:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2019-12-07 14:09:57,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 594. [2019-12-07 14:09:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2019-12-07 14:09:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 876 transitions. [2019-12-07 14:09:57,044 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 876 transitions. Word has length 123 [2019-12-07 14:09:57,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:57,044 INFO L462 AbstractCegarLoop]: Abstraction has 594 states and 876 transitions. [2019-12-07 14:09:57,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:57,044 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 876 transitions. [2019-12-07 14:09:57,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-12-07 14:09:57,046 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:57,046 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 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, 1, 1, 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 14:09:57,047 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:57,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:57,047 INFO L82 PathProgramCache]: Analyzing trace with hash -266344288, now seen corresponding path program 1 times [2019-12-07 14:09:57,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:57,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481587886] [2019-12-07 14:09:57,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-12-07 14:09:57,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481587886] [2019-12-07 14:09:57,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:57,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:57,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647918564] [2019-12-07 14:09:57,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:57,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:57,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:57,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:57,097 INFO L87 Difference]: Start difference. First operand 594 states and 876 transitions. Second operand 3 states. [2019-12-07 14:09:57,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:57,214 INFO L93 Difference]: Finished difference Result 1456 states and 2204 transitions. [2019-12-07 14:09:57,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:57,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-12-07 14:09:57,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:57,218 INFO L225 Difference]: With dead ends: 1456 [2019-12-07 14:09:57,218 INFO L226 Difference]: Without dead ends: 821 [2019-12-07 14:09:57,219 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 14:09:57,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-12-07 14:09:57,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 783. [2019-12-07 14:09:57,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2019-12-07 14:09:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1128 transitions. [2019-12-07 14:09:57,233 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1128 transitions. Word has length 149 [2019-12-07 14:09:57,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:57,233 INFO L462 AbstractCegarLoop]: Abstraction has 783 states and 1128 transitions. [2019-12-07 14:09:57,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:57,233 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1128 transitions. [2019-12-07 14:09:57,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-12-07 14:09:57,235 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:57,235 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:57,235 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:57,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:57,236 INFO L82 PathProgramCache]: Analyzing trace with hash -466571119, now seen corresponding path program 1 times [2019-12-07 14:09:57,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:57,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11342101] [2019-12-07 14:09:57,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2019-12-07 14:09:57,276 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11342101] [2019-12-07 14:09:57,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:57,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:57,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628102171] [2019-12-07 14:09:57,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:57,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:57,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:57,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:57,278 INFO L87 Difference]: Start difference. First operand 783 states and 1128 transitions. Second operand 3 states. [2019-12-07 14:09:57,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:57,385 INFO L93 Difference]: Finished difference Result 1712 states and 2481 transitions. [2019-12-07 14:09:57,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:57,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-12-07 14:09:57,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:57,389 INFO L225 Difference]: With dead ends: 1712 [2019-12-07 14:09:57,389 INFO L226 Difference]: Without dead ends: 894 [2019-12-07 14:09:57,390 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 14:09:57,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-12-07 14:09:57,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 858. [2019-12-07 14:09:57,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2019-12-07 14:09:57,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1224 transitions. [2019-12-07 14:09:57,405 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1224 transitions. Word has length 170 [2019-12-07 14:09:57,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:57,405 INFO L462 AbstractCegarLoop]: Abstraction has 858 states and 1224 transitions. [2019-12-07 14:09:57,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1224 transitions. [2019-12-07 14:09:57,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-12-07 14:09:57,407 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:57,407 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:57,407 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:57,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:57,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1681812864, now seen corresponding path program 1 times [2019-12-07 14:09:57,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:57,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810750071] [2019-12-07 14:09:57,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2019-12-07 14:09:57,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810750071] [2019-12-07 14:09:57,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:57,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:57,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685141929] [2019-12-07 14:09:57,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:57,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:57,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:57,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:57,462 INFO L87 Difference]: Start difference. First operand 858 states and 1224 transitions. Second operand 3 states. [2019-12-07 14:09:57,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:57,576 INFO L93 Difference]: Finished difference Result 1862 states and 2673 transitions. [2019-12-07 14:09:57,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:57,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-12-07 14:09:57,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:57,581 INFO L225 Difference]: With dead ends: 1862 [2019-12-07 14:09:57,581 INFO L226 Difference]: Without dead ends: 987 [2019-12-07 14:09:57,582 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 14:09:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2019-12-07 14:09:57,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 951. [2019-12-07 14:09:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2019-12-07 14:09:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1356 transitions. [2019-12-07 14:09:57,599 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1356 transitions. Word has length 194 [2019-12-07 14:09:57,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:57,599 INFO L462 AbstractCegarLoop]: Abstraction has 951 states and 1356 transitions. [2019-12-07 14:09:57,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:57,599 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1356 transitions. [2019-12-07 14:09:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-12-07 14:09:57,601 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:57,601 INFO L410 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:57,601 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:57,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:57,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1348358718, now seen corresponding path program 1 times [2019-12-07 14:09:57,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:57,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306321145] [2019-12-07 14:09:57,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:57,652 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-12-07 14:09:57,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306321145] [2019-12-07 14:09:57,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:57,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:57,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813357900] [2019-12-07 14:09:57,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:57,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:57,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:57,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:57,654 INFO L87 Difference]: Start difference. First operand 951 states and 1356 transitions. Second operand 3 states. [2019-12-07 14:09:57,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:57,678 INFO L93 Difference]: Finished difference Result 2833 states and 4038 transitions. [2019-12-07 14:09:57,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:57,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2019-12-07 14:09:57,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:57,686 INFO L225 Difference]: With dead ends: 2833 [2019-12-07 14:09:57,686 INFO L226 Difference]: Without dead ends: 1892 [2019-12-07 14:09:57,687 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 14:09:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2019-12-07 14:09:57,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1890. [2019-12-07 14:09:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1890 states. [2019-12-07 14:09:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2693 transitions. [2019-12-07 14:09:57,721 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2693 transitions. Word has length 224 [2019-12-07 14:09:57,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:57,721 INFO L462 AbstractCegarLoop]: Abstraction has 1890 states and 2693 transitions. [2019-12-07 14:09:57,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2693 transitions. [2019-12-07 14:09:57,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-12-07 14:09:57,724 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:57,724 INFO L410 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:57,724 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:57,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:57,725 INFO L82 PathProgramCache]: Analyzing trace with hash 132204992, now seen corresponding path program 1 times [2019-12-07 14:09:57,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:57,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169825042] [2019-12-07 14:09:57,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-12-07 14:09:57,773 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169825042] [2019-12-07 14:09:57,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:57,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:57,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734759798] [2019-12-07 14:09:57,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:57,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:57,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:57,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:57,774 INFO L87 Difference]: Start difference. First operand 1890 states and 2693 transitions. Second operand 3 states. [2019-12-07 14:09:57,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:57,914 INFO L93 Difference]: Finished difference Result 4076 states and 5839 transitions. [2019-12-07 14:09:57,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:57,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2019-12-07 14:09:57,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:57,924 INFO L225 Difference]: With dead ends: 4076 [2019-12-07 14:09:57,924 INFO L226 Difference]: Without dead ends: 2166 [2019-12-07 14:09:57,926 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 14:09:57,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2019-12-07 14:09:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2100. [2019-12-07 14:09:57,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2019-12-07 14:09:57,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 3005 transitions. [2019-12-07 14:09:57,971 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 3005 transitions. Word has length 224 [2019-12-07 14:09:57,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:57,972 INFO L462 AbstractCegarLoop]: Abstraction has 2100 states and 3005 transitions. [2019-12-07 14:09:57,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:57,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 3005 transitions. [2019-12-07 14:09:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2019-12-07 14:09:57,976 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:57,976 INFO L410 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:09:57,977 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:57,977 INFO L82 PathProgramCache]: Analyzing trace with hash 912871510, now seen corresponding path program 1 times [2019-12-07 14:09:57,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:57,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661404253] [2019-12-07 14:09:57,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2019-12-07 14:09:58,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661404253] [2019-12-07 14:09:58,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:58,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:58,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408183790] [2019-12-07 14:09:58,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:58,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:58,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:58,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:58,053 INFO L87 Difference]: Start difference. First operand 2100 states and 3005 transitions. Second operand 3 states. [2019-12-07 14:09:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:58,178 INFO L93 Difference]: Finished difference Result 4256 states and 6073 transitions. [2019-12-07 14:09:58,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:58,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 259 [2019-12-07 14:09:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:58,187 INFO L225 Difference]: With dead ends: 4256 [2019-12-07 14:09:58,187 INFO L226 Difference]: Without dead ends: 2148 [2019-12-07 14:09:58,189 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 14:09:58,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2019-12-07 14:09:58,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2082. [2019-12-07 14:09:58,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2019-12-07 14:09:58,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2951 transitions. [2019-12-07 14:09:58,223 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2951 transitions. Word has length 259 [2019-12-07 14:09:58,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:58,223 INFO L462 AbstractCegarLoop]: Abstraction has 2082 states and 2951 transitions. [2019-12-07 14:09:58,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2951 transitions. [2019-12-07 14:09:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-12-07 14:09:58,227 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:58,227 INFO L410 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:58,227 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:58,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:58,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1837028224, now seen corresponding path program 1 times [2019-12-07 14:09:58,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:58,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23164138] [2019-12-07 14:09:58,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2019-12-07 14:09:58,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23164138] [2019-12-07 14:09:58,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:58,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:58,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746824947] [2019-12-07 14:09:58,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:58,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:58,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:58,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:58,335 INFO L87 Difference]: Start difference. First operand 2082 states and 2951 transitions. Second operand 3 states. [2019-12-07 14:09:58,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:58,374 INFO L93 Difference]: Finished difference Result 6211 states and 8802 transitions. [2019-12-07 14:09:58,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:58,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2019-12-07 14:09:58,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:58,390 INFO L225 Difference]: With dead ends: 6211 [2019-12-07 14:09:58,390 INFO L226 Difference]: Without dead ends: 4139 [2019-12-07 14:09:58,393 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 14:09:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4139 states. [2019-12-07 14:09:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4139 to 4137. [2019-12-07 14:09:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4137 states. [2019-12-07 14:09:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 5847 transitions. [2019-12-07 14:09:58,462 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 5847 transitions. Word has length 269 [2019-12-07 14:09:58,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:58,462 INFO L462 AbstractCegarLoop]: Abstraction has 4137 states and 5847 transitions. [2019-12-07 14:09:58,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:58,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 5847 transitions. [2019-12-07 14:09:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-12-07 14:09:58,468 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:58,468 INFO L410 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:58,468 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:58,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:58,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1739569540, now seen corresponding path program 1 times [2019-12-07 14:09:58,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:58,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228179302] [2019-12-07 14:09:58,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2019-12-07 14:09:58,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228179302] [2019-12-07 14:09:58,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:58,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:58,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637951514] [2019-12-07 14:09:58,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:58,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:58,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:58,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:58,553 INFO L87 Difference]: Start difference. First operand 4137 states and 5847 transitions. Second operand 3 states. [2019-12-07 14:09:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:58,713 INFO L93 Difference]: Finished difference Result 8369 states and 11808 transitions. [2019-12-07 14:09:58,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:58,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2019-12-07 14:09:58,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:58,733 INFO L225 Difference]: With dead ends: 8369 [2019-12-07 14:09:58,733 INFO L226 Difference]: Without dead ends: 4245 [2019-12-07 14:09:58,737 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 14:09:58,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4245 states. [2019-12-07 14:09:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4245 to 4137. [2019-12-07 14:09:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4137 states. [2019-12-07 14:09:58,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 5739 transitions. [2019-12-07 14:09:58,805 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 5739 transitions. Word has length 269 [2019-12-07 14:09:58,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:58,806 INFO L462 AbstractCegarLoop]: Abstraction has 4137 states and 5739 transitions. [2019-12-07 14:09:58,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:58,806 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 5739 transitions. [2019-12-07 14:09:58,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-12-07 14:09:58,811 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:58,812 INFO L410 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:09:58,812 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:58,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:58,812 INFO L82 PathProgramCache]: Analyzing trace with hash 938764333, now seen corresponding path program 1 times [2019-12-07 14:09:58,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:58,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594518528] [2019-12-07 14:09:58,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:58,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2019-12-07 14:09:58,877 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594518528] [2019-12-07 14:09:58,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:58,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:58,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436651346] [2019-12-07 14:09:58,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:58,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:58,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:58,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:58,879 INFO L87 Difference]: Start difference. First operand 4137 states and 5739 transitions. Second operand 3 states. [2019-12-07 14:09:59,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:59,007 INFO L93 Difference]: Finished difference Result 8855 states and 12162 transitions. [2019-12-07 14:09:59,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:59,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2019-12-07 14:09:59,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:59,025 INFO L225 Difference]: With dead ends: 8855 [2019-12-07 14:09:59,025 INFO L226 Difference]: Without dead ends: 4731 [2019-12-07 14:09:59,029 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 14:09:59,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4731 states. [2019-12-07 14:09:59,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4731 to 4311. [2019-12-07 14:09:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4311 states. [2019-12-07 14:09:59,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 5973 transitions. [2019-12-07 14:09:59,110 INFO L78 Accepts]: Start accepts. Automaton has 4311 states and 5973 transitions. Word has length 296 [2019-12-07 14:09:59,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:59,110 INFO L462 AbstractCegarLoop]: Abstraction has 4311 states and 5973 transitions. [2019-12-07 14:09:59,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4311 states and 5973 transitions. [2019-12-07 14:09:59,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-12-07 14:09:59,116 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:59,116 INFO L410 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:09:59,117 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:59,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:59,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1894222412, now seen corresponding path program 1 times [2019-12-07 14:09:59,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:59,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600766023] [2019-12-07 14:09:59,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2019-12-07 14:09:59,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600766023] [2019-12-07 14:09:59,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:59,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:09:59,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204647131] [2019-12-07 14:09:59,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:59,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:59,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:59,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:59,224 INFO L87 Difference]: Start difference. First operand 4311 states and 5973 transitions. Second operand 3 states. [2019-12-07 14:09:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:59,352 INFO L93 Difference]: Finished difference Result 8933 states and 12252 transitions. [2019-12-07 14:09:59,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:59,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2019-12-07 14:09:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:59,368 INFO L225 Difference]: With dead ends: 8933 [2019-12-07 14:09:59,368 INFO L226 Difference]: Without dead ends: 4131 [2019-12-07 14:09:59,372 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:09:59,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2019-12-07 14:09:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 4113. [2019-12-07 14:09:59,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4113 states. [2019-12-07 14:09:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5679 transitions. [2019-12-07 14:09:59,422 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5679 transitions. Word has length 297 [2019-12-07 14:09:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:59,423 INFO L462 AbstractCegarLoop]: Abstraction has 4113 states and 5679 transitions. [2019-12-07 14:09:59,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5679 transitions. [2019-12-07 14:09:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2019-12-07 14:09:59,428 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:59,429 INFO L410 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:59,429 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:09:59,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:59,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1483906000, now seen corresponding path program 1 times [2019-12-07 14:09:59,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:59,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118286349] [2019-12-07 14:09:59,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2019-12-07 14:09:59,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118286349] [2019-12-07 14:09:59,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492334709] [2019-12-07 14:09:59,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/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 14:09:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:59,593 INFO L264 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:09:59,606 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2019-12-07 14:09:59,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 14:09:59,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-12-07 14:09:59,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575149375] [2019-12-07 14:09:59,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:09:59,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:59,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:09:59,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:09:59,704 INFO L87 Difference]: Start difference. First operand 4113 states and 5679 transitions. Second operand 3 states. [2019-12-07 14:09:59,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:59,755 INFO L93 Difference]: Finished difference Result 6199 states and 8538 transitions. [2019-12-07 14:09:59,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:09:59,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 307 [2019-12-07 14:09:59,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:09:59,762 INFO L225 Difference]: With dead ends: 6199 [2019-12-07 14:09:59,762 INFO L226 Difference]: Without dead ends: 4115 [2019-12-07 14:09:59,765 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:09:59,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2019-12-07 14:09:59,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 4101. [2019-12-07 14:09:59,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4101 states. [2019-12-07 14:09:59,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5643 transitions. [2019-12-07 14:09:59,816 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5643 transitions. Word has length 307 [2019-12-07 14:09:59,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:09:59,816 INFO L462 AbstractCegarLoop]: Abstraction has 4101 states and 5643 transitions. [2019-12-07 14:09:59,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:09:59,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5643 transitions. [2019-12-07 14:09:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2019-12-07 14:09:59,821 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:09:59,821 INFO L410 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:10:00,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:10:00,022 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:10:00,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:10:00,023 INFO L82 PathProgramCache]: Analyzing trace with hash -321532334, now seen corresponding path program 1 times [2019-12-07 14:10:00,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:10:00,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449894559] [2019-12-07 14:10:00,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:10:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:10:00,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2019-12-07 14:10:00,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449894559] [2019-12-07 14:10:00,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386666750] [2019-12-07 14:10:00,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/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 14:10:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:10:00,192 INFO L264 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:10:00,198 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:10:00,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2019-12-07 14:10:00,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:10:00,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 14:10:00,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433553489] [2019-12-07 14:10:00,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:10:00,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:10:00,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:10:00,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:10:00,266 INFO L87 Difference]: Start difference. First operand 4101 states and 5643 transitions. Second operand 4 states. [2019-12-07 14:10:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:10:00,530 INFO L93 Difference]: Finished difference Result 7278 states and 10118 transitions. [2019-12-07 14:10:00,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:10:00,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 307 [2019-12-07 14:10:00,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:10:00,541 INFO L225 Difference]: With dead ends: 7278 [2019-12-07 14:10:00,541 INFO L226 Difference]: Without dead ends: 5086 [2019-12-07 14:10:00,543 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:10:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2019-12-07 14:10:00,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 4274. [2019-12-07 14:10:00,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4274 states. [2019-12-07 14:10:00,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 5908 transitions. [2019-12-07 14:10:00,629 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 5908 transitions. Word has length 307 [2019-12-07 14:10:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:10:00,629 INFO L462 AbstractCegarLoop]: Abstraction has 4274 states and 5908 transitions. [2019-12-07 14:10:00,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:10:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 5908 transitions. [2019-12-07 14:10:00,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2019-12-07 14:10:00,633 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:10:00,634 INFO L410 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:10:00,834 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:10:00,834 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:10:00,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:10:00,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1368718125, now seen corresponding path program 1 times [2019-12-07 14:10:00,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:10:00,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989443897] [2019-12-07 14:10:00,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:10:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:10:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2019-12-07 14:10:00,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989443897] [2019-12-07 14:10:00,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212959180] [2019-12-07 14:10:00,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/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 14:10:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:10:01,052 INFO L264 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:10:01,058 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:10:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2019-12-07 14:10:01,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:10:01,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 14:10:01,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050905319] [2019-12-07 14:10:01,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:10:01,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:10:01,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:10:01,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:10:01,140 INFO L87 Difference]: Start difference. First operand 4274 states and 5908 transitions. Second operand 4 states. [2019-12-07 14:10:01,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:10:01,340 INFO L93 Difference]: Finished difference Result 5429 states and 7539 transitions. [2019-12-07 14:10:01,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:10:01,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2019-12-07 14:10:01,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:10:01,343 INFO L225 Difference]: With dead ends: 5429 [2019-12-07 14:10:01,343 INFO L226 Difference]: Without dead ends: 2207 [2019-12-07 14:10:01,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:10:01,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2019-12-07 14:10:01,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2019-12-07 14:10:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2207 states. [2019-12-07 14:10:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3065 transitions. [2019-12-07 14:10:01,383 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3065 transitions. Word has length 308 [2019-12-07 14:10:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:10:01,383 INFO L462 AbstractCegarLoop]: Abstraction has 2207 states and 3065 transitions. [2019-12-07 14:10:01,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:10:01,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3065 transitions. [2019-12-07 14:10:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2019-12-07 14:10:01,386 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:10:01,386 INFO L410 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:10:01,586 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:10:01,587 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:10:01,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:10:01,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1115026887, now seen corresponding path program 1 times [2019-12-07 14:10:01,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:10:01,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604793987] [2019-12-07 14:10:01,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:10:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:10:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2019-12-07 14:10:01,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604793987] [2019-12-07 14:10:01,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237568912] [2019-12-07 14:10:01,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/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 14:10:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:10:01,786 INFO L264 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:10:01,790 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:10:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2019-12-07 14:10:01,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:10:01,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 14:10:01,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308253951] [2019-12-07 14:10:01,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:10:01,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:10:01,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:10:01,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:10:01,847 INFO L87 Difference]: Start difference. First operand 2207 states and 3065 transitions. Second operand 4 states. [2019-12-07 14:10:02,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:10:02,008 INFO L93 Difference]: Finished difference Result 3153 states and 4322 transitions. [2019-12-07 14:10:02,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:10:02,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2019-12-07 14:10:02,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:10:02,009 INFO L225 Difference]: With dead ends: 3153 [2019-12-07 14:10:02,009 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:10:02,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:10:02,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:10:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:10:02,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:10:02,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:10:02,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 333 [2019-12-07 14:10:02,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:10:02,012 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:10:02,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:10:02,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:10:02,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:10:02,213 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:10:02,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 14:10:02,582 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2019-12-07 14:10:02,863 INFO L249 CegarLoopResult]: At program point L630(lines 622 632) the Hoare annotation is: true [2019-12-07 14:10:02,863 INFO L246 CegarLoopResult]: For program point L300(lines 300 304) no Hoare annotation was computed. [2019-12-07 14:10:02,863 INFO L246 CegarLoopResult]: For program point L300-2(lines 300 304) no Hoare annotation was computed. [2019-12-07 14:10:02,863 INFO L246 CegarLoopResult]: For program point L168(lines 168 549) no Hoare annotation was computed. [2019-12-07 14:10:02,863 INFO L246 CegarLoopResult]: For program point L135(lines 135 560) no Hoare annotation was computed. [2019-12-07 14:10:02,863 INFO L246 CegarLoopResult]: For program point L102(lines 102 571) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L246 CegarLoopResult]: For program point L433(lines 433 437) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L246 CegarLoopResult]: For program point L433-2(lines 203 535) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L249 CegarLoopResult]: At program point L202(lines 201 538) the Hoare annotation is: true [2019-12-07 14:10:02,864 INFO L242 CegarLoopResult]: At program point L169(lines 165 550) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,864 INFO L242 CegarLoopResult]: At program point L103(lines 102 571) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,864 INFO L246 CegarLoopResult]: For program point L368(lines 368 372) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L246 CegarLoopResult]: For program point L402(lines 402 407) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L246 CegarLoopResult]: For program point L402-2(lines 402 407) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L246 CegarLoopResult]: For program point L171(lines 171 548) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L246 CegarLoopResult]: For program point L138(lines 138 559) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L246 CegarLoopResult]: For program point L105(lines 105 570) no Hoare annotation was computed. [2019-12-07 14:10:02,864 INFO L242 CegarLoopResult]: At program point L139(lines 135 560) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,865 INFO L242 CegarLoopResult]: At program point L536(lines 99 602) the Hoare annotation is: (let ((.cse2 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse4 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse1 (= 0 ULTIMATE.start_ssl3_connect_~s__hit~0)) (.cse5 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (and (= 4416 ULTIMATE.start_ssl3_connect_~s__state~0) .cse0) (and (not .cse1) .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse0 .cse3) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse0 .cse4 .cse1 .cse5) (<= ULTIMATE.start_ssl3_connect_~s__state~0 3) (and .cse2 .cse0 .cse3 .cse4 .cse1 .cse5) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) .cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)))) [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L74(lines 74 82) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L249 CegarLoopResult]: At program point L603(lines 98 604) the Hoare annotation is: true [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L174(lines 174 547) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L141(lines 141 558) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L108(lines 108 569) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L373(lines 373 377) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L373-2(lines 373 377) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L242 CegarLoopResult]: At program point L208(lines 105 570) the Hoare annotation is: (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) [2019-12-07 14:10:02,865 INFO L242 CegarLoopResult]: At program point L175(lines 171 548) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L572(lines 572 600) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L77(lines 77 81) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L77-2(lines 74 82) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L573(lines 573 597) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L507-1(lines 203 535) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L342(lines 342 347) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L276(lines 276 280) no Hoare annotation was computed. [2019-12-07 14:10:02,865 INFO L246 CegarLoopResult]: For program point L309-1(lines 309 323) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L177(lines 177 546) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L144(lines 144 557) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L111(lines 111 568) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L607(lines 607 611) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L574(lines 574 583) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L607-2(lines 607 611) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L574-2(lines 573 595) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L242 CegarLoopResult]: At program point L145(lines 141 558) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L576(lines 576 580) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L444(lines 444 449) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L213(lines 213 217) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L180(lines 180 545) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L147(lines 147 556) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L213-2(lines 203 535) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L114(lines 114 567) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L478(lines 478 482) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L313(lines 313 317) no Hoare annotation was computed. [2019-12-07 14:10:02,866 INFO L246 CegarLoopResult]: For program point L313-2(lines 311 323) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L242 CegarLoopResult]: At program point L181(lines 177 546) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L512-1(lines 512 516) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L413(lines 413 417) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L249(lines 249 254) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L183(lines 183 544) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L150(lines 150 555) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L117(lines 117 566) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L84(lines 84 92) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L84-1(lines 66 620) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L242 CegarLoopResult]: At program point L151(lines 147 556) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L85(lines 85 89) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L483(lines 483 487) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L483-2(lines 483 487) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L285(lines 285 293) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L186(lines 186 543) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L153(lines 153 554) no Hoare annotation was computed. [2019-12-07 14:10:02,867 INFO L246 CegarLoopResult]: For program point L120(lines 120 565) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L385(lines 385 389) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L352(lines 352 356) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L242 CegarLoopResult]: At program point L187(lines 183 544) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (not (= 0 ULTIMATE.start_ssl3_connect_~s__hit~0)) .cse0 .cse1) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse0 .cse1))) [2019-12-07 14:10:02,868 INFO L242 CegarLoopResult]: At program point L121(lines 117 566) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,868 INFO L242 CegarLoopResult]: At program point L353(lines 66 620) the Hoare annotation is: false [2019-12-07 14:10:02,868 INFO L249 CegarLoopResult]: At program point L618(lines 66 620) the Hoare annotation is: true [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L585(lines 585 591) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L519(lines 519 523) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L519-2(lines 519 523) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L288(lines 288 292) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L288-2(lines 203 535) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L189(lines 189 542) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L156(lines 156 553) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L123(lines 123 564) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L249 CegarLoopResult]: At program point L619(lines 8 621) the Hoare annotation is: true [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L454(lines 454 458) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 14:10:02,868 INFO L246 CegarLoopResult]: For program point L357(lines 357 361) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L225(lines 225 242) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L192(lines 192 541) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L159(lines 159 552) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L225-2(lines 203 535) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L126(lines 126 563) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L242 CegarLoopResult]: At program point L193(lines 189 542) the Hoare annotation is: (or (and (= 0 ULTIMATE.start_ssl3_connect_~s__hit~0) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (and (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 2))) [2019-12-07 14:10:02,869 INFO L242 CegarLoopResult]: At program point L127(lines 123 564) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L491-1(lines 491 503) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L425(lines 425 429) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L227(lines 227 232) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L195(lines 195 540) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L162(lines 162 551) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L129(lines 129 562) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L246 CegarLoopResult]: For program point L526(lines 526 530) no Hoare annotation was computed. [2019-12-07 14:10:02,869 INFO L242 CegarLoopResult]: At program point L196(lines 195 540) the Hoare annotation is: (let ((.cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse0 (= 0 ULTIMATE.start_ssl3_connect_~s__hit~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (not .cse0) .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and .cse1 .cse2 .cse3 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse0 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (and .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse3))) [2019-12-07 14:10:02,870 INFO L242 CegarLoopResult]: At program point L163(lines 153 554) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L494(lines 494 499) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L461(lines 461 472) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L461-1(lines 461 472) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L263(lines 263 267) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L263-2(lines 203 535) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 614) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L396(lines 396 400) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L330(lines 330 334) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L330-2(lines 203 535) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L198(lines 198 539) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L165(lines 165 550) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L132(lines 132 561) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L99-1(lines 66 620) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L246 CegarLoopResult]: For program point L463(lines 463 469) no Hoare annotation was computed. [2019-12-07 14:10:02,870 INFO L249 CegarLoopResult]: At program point L199(lines 198 539) the Hoare annotation is: true [2019-12-07 14:10:02,870 INFO L242 CegarLoopResult]: At program point L133(lines 129 562) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2019-12-07 14:10:02,871 INFO L246 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2019-12-07 14:10:02,871 INFO L246 CegarLoopResult]: For program point L233(lines 233 238) no Hoare annotation was computed. [2019-12-07 14:10:02,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:10:02 BoogieIcfgContainer [2019-12-07 14:10:02,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:10:02,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:10:02,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:10:02,887 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:10:02,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:09:55" (3/4) ... [2019-12-07 14:10:02,889 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:10:02,901 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 14:10:02,902 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 14:10:02,957 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ca5443a6-7aed-4f1e-b7b7-9a6396131085/bin/uautomizer/witness.graphml [2019-12-07 14:10:02,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:10:02,958 INFO L168 Benchmark]: Toolchain (without parser) took 7855.86 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 604.5 MB). Free memory was 944.7 MB in the beginning and 1.5 GB in the end (delta: -522.1 MB). Peak memory consumption was 82.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:10:02,959 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:10:02,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:10:02,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.83 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 14:10:02,959 INFO L168 Benchmark]: Boogie Preprocessor took 23.78 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 14:10:02,960 INFO L168 Benchmark]: RCFGBuilder took 390.12 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:10:02,960 INFO L168 Benchmark]: TraceAbstraction took 7057.13 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 521.1 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -473.2 MB). Peak memory consumption was 606.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:10:02,960 INFO L168 Benchmark]: Witness Printer took 70.77 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:10:02,961 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.78 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. * RCFGBuilder took 390.12 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7057.13 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 521.1 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -473.2 MB). Peak memory consumption was 606.7 MB. Max. memory is 11.5 GB. * Witness Printer took 70.77 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 614]: 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: 171]: Loop Invariant Derived loop invariant: (s__state <= 4512 && blastFlag <= 4) && 4432 <= s__state - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((((((4416 == s__state && blastFlag <= 4) || ((((!(0 == s__hit) && s__state <= 4352) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) && 4352 <= s__state)) || blastFlag <= 2) || (((((4560 <= s__state && s__state <= 4560) && blastFlag <= 4) && 4560 <= s__s3__tmp__next_state___0) && 0 == s__hit) && s__s3__tmp__next_state___0 <= 4560)) || s__state <= 3) || (((((s__state <= 4352 && blastFlag <= 4) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && 0 == s__hit) && s__s3__tmp__next_state___0 <= 4560)) || ((s__state <= 4528 && blastFlag <= 4) && 4432 <= s__state) - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: ((!(0 == s__hit) && blastFlag <= 4) && 4432 <= s__state) || ((s__state <= 4560 && blastFlag <= 4) && 4432 <= s__state) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4448) && 4432 <= s__state - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: blastFlag <= 2 && 12292 == s__state - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (s__state <= 4512 && blastFlag <= 4) && 4432 <= s__state - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: (s__state <= 4528 && blastFlag <= 4) && 4432 <= s__state - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: (0 == s__hit && 4432 <= s__state) || (4560 <= s__state && blastFlag <= 2) - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: (s__state <= 4480 && blastFlag <= 4) && 4432 <= s__state - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: (s__state <= 4480 && blastFlag <= 4) && 4432 <= s__state - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: (((((!(0 == s__hit) && s__state <= 4352) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) && 4352 <= s__state) || (((((s__state <= 4352 && blastFlag <= 4) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && 0 == s__hit) && s__s3__tmp__next_state___0 <= 4560)) || ((s__state <= 4352 && blastFlag <= 2) && 4352 <= s__state) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 1 error locations. Result: SAFE, OverallTime: 6.3s, OverallIterations: 21, TraceHistogramMax: 15, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, HoareTripleCheckerStatistics: 4033 SDtfs, 1585 SDslu, 2268 SDs, 0 SdLazy, 1977 SolverSat, 491 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1323 GetRequests, 1294 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4311occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 1655 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 191 NumberOfFragments, 280 HoareAnnotationTreeSize, 23 FomulaSimplifications, 14412 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 23 FomulaSimplificationsInter, 8920 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 5351 NumberOfCodeBlocks, 5351 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 5326 ConstructedInterpolants, 0 QuantifiedInterpolants, 2023446 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2379 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 25 InterpolantComputations, 18 PerfectInterpolantSequences, 16460/16530 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...