./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e55536c26dc3d2371d51cd4bd073d4d19c2d7077 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:36:29,361 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:36:29,362 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:36:29,368 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:36:29,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:36:29,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:36:29,370 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:36:29,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:36:29,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:36:29,372 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:36:29,373 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:36:29,373 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:36:29,374 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:36:29,374 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:36:29,375 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:36:29,376 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:36:29,376 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:36:29,377 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:36:29,379 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:36:29,380 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:36:29,380 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:36:29,381 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:36:29,383 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:36:29,383 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:36:29,383 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:36:29,384 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:36:29,384 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:36:29,385 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:36:29,385 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:36:29,386 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:36:29,386 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:36:29,387 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:36:29,387 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:36:29,387 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:36:29,388 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:36:29,388 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:36:29,388 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:36:29,398 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:36:29,398 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:36:29,399 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:36:29,399 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:36:29,399 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:36:29,399 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:36:29,399 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:36:29,399 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:36:29,400 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:36:29,400 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:36:29,400 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:36:29,400 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:36:29,400 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:36:29,401 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:36:29,401 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:36:29,401 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:36:29,401 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:36:29,401 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:36:29,401 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:36:29,401 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:36:29,401 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:36:29,402 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:36:29,402 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:36:29,402 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:36:29,402 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:36:29,402 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:36:29,402 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:36:29,402 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:36:29,403 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:36:29,403 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:36:29,403 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:36:29,403 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:36:29,403 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:36:29,403 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:36:29,403 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:36:29,403 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:36:29,403 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:36:29,404 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e55536c26dc3d2371d51cd4bd073d4d19c2d7077 [2018-11-18 11:36:29,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:36:29,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:36:29,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:36:29,441 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:36:29,441 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:36:29,442 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 11:36:29,476 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/data/acecb1587/e642a4f608b242e2b6a8277833ab5cbe/FLAGe50cb22d7 [2018-11-18 11:36:29,789 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:36:29,790 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 11:36:29,796 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/data/acecb1587/e642a4f608b242e2b6a8277833ab5cbe/FLAGe50cb22d7 [2018-11-18 11:36:29,805 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/data/acecb1587/e642a4f608b242e2b6a8277833ab5cbe [2018-11-18 11:36:29,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:36:29,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:36:29,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:36:29,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:36:29,812 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:36:29,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:36:29" (1/1) ... [2018-11-18 11:36:29,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399b9200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:29, skipping insertion in model container [2018-11-18 11:36:29,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:36:29" (1/1) ... [2018-11-18 11:36:29,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:36:29,847 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:36:29,975 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:36:29,977 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:36:30,001 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:36:30,011 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:36:30,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30 WrapperNode [2018-11-18 11:36:30,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:36:30,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:36:30,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:36:30,012 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:36:30,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:36:30,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:36:30,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:36:30,027 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:36:30,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... [2018-11-18 11:36:30,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:36:30,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:36:30,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:36:30,082 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:36:30,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:36:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:36:30,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:36:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:36:30,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:36:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:36:30,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:36:30,390 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:36:30,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:30 BoogieIcfgContainer [2018-11-18 11:36:30,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:36:30,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:36:30,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:36:30,393 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:36:30,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:36:29" (1/3) ... [2018-11-18 11:36:30,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3922ff31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:36:30, skipping insertion in model container [2018-11-18 11:36:30,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:30" (2/3) ... [2018-11-18 11:36:30,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3922ff31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:36:30, skipping insertion in model container [2018-11-18 11:36:30,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:30" (3/3) ... [2018-11-18 11:36:30,395 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 11:36:30,400 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:36:30,405 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2018-11-18 11:36:30,414 INFO L257 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2018-11-18 11:36:30,436 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:36:30,437 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:36:30,437 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:36:30,437 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:36:30,437 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:36:30,437 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:36:30,437 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:36:30,437 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:36:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2018-11-18 11:36:30,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:36:30,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:30,452 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:30,454 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:30,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:30,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1637525138, now seen corresponding path program 1 times [2018-11-18 11:36:30,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:30,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:30,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:30,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:30,494 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:30,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:30,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:30,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:36:30,570 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:30,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:36:30,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:36:30,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:36:30,582 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 3 states. [2018-11-18 11:36:30,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:30,602 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2018-11-18 11:36:30,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:36:30,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-18 11:36:30,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:30,612 INFO L225 Difference]: With dead ends: 93 [2018-11-18 11:36:30,612 INFO L226 Difference]: Without dead ends: 80 [2018-11-18 11:36:30,614 INFO L604 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 [2018-11-18 11:36:30,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-18 11:36:30,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-11-18 11:36:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-11-18 11:36:30,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2018-11-18 11:36:30,639 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2018-11-18 11:36:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:30,640 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2018-11-18 11:36:30,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:36:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2018-11-18 11:36:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:36:30,640 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:30,640 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:30,641 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:30,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:30,641 INFO L82 PathProgramCache]: Analyzing trace with hash 776331368, now seen corresponding path program 1 times [2018-11-18 11:36:30,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:30,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:30,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:30,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:30,643 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:30,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:30,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:36:30,718 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:30,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:36:30,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:36:30,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:36:30,719 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 6 states. [2018-11-18 11:36:30,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:30,794 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2018-11-18 11:36:30,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:30,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-18 11:36:30,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:30,796 INFO L225 Difference]: With dead ends: 80 [2018-11-18 11:36:30,796 INFO L226 Difference]: Without dead ends: 78 [2018-11-18 11:36:30,797 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:36:30,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-18 11:36:30,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-11-18 11:36:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-18 11:36:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2018-11-18 11:36:30,804 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2018-11-18 11:36:30,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:30,804 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2018-11-18 11:36:30,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:36:30,804 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2018-11-18 11:36:30,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 11:36:30,805 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:30,805 INFO L375 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] [2018-11-18 11:36:30,805 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:30,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:30,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1269768629, now seen corresponding path program 1 times [2018-11-18 11:36:30,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:30,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:30,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:30,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:30,807 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:30,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:30,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:30,862 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:30,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:30,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:30,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:30,863 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2018-11-18 11:36:30,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:30,958 INFO L93 Difference]: Finished difference Result 116 states and 121 transitions. [2018-11-18 11:36:30,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:30,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-18 11:36:30,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:30,959 INFO L225 Difference]: With dead ends: 116 [2018-11-18 11:36:30,959 INFO L226 Difference]: Without dead ends: 114 [2018-11-18 11:36:30,959 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:30,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-18 11:36:30,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 76. [2018-11-18 11:36:30,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 11:36:30,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2018-11-18 11:36:30,966 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2018-11-18 11:36:30,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:30,966 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2018-11-18 11:36:30,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:30,967 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2018-11-18 11:36:30,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 11:36:30,967 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:30,967 INFO L375 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] [2018-11-18 11:36:30,968 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:30,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:30,968 INFO L82 PathProgramCache]: Analyzing trace with hash -708118726, now seen corresponding path program 1 times [2018-11-18 11:36:30,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:30,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:30,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:30,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:30,969 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:31,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:31,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:36:31,004 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:31,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:36:31,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:36:31,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:36:31,004 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2018-11-18 11:36:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:31,086 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2018-11-18 11:36:31,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:31,087 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 11:36:31,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:31,087 INFO L225 Difference]: With dead ends: 76 [2018-11-18 11:36:31,087 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 11:36:31,088 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:36:31,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 11:36:31,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 11:36:31,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 11:36:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2018-11-18 11:36:31,091 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2018-11-18 11:36:31,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:31,092 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2018-11-18 11:36:31,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:36:31,092 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2018-11-18 11:36:31,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:36:31,092 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:31,093 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:31,093 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:31,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:31,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1317531748, now seen corresponding path program 1 times [2018-11-18 11:36:31,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:31,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:31,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:31,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:31,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:31,136 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:31,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:31,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:31,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:31,137 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 5 states. [2018-11-18 11:36:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:31,249 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2018-11-18 11:36:31,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:36:31,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-18 11:36:31,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:31,250 INFO L225 Difference]: With dead ends: 141 [2018-11-18 11:36:31,251 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 11:36:31,251 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:36:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 11:36:31,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2018-11-18 11:36:31,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 11:36:31,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2018-11-18 11:36:31,259 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2018-11-18 11:36:31,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:31,260 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2018-11-18 11:36:31,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2018-11-18 11:36:31,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:36:31,261 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:31,261 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:31,261 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:31,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:31,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1321265557, now seen corresponding path program 1 times [2018-11-18 11:36:31,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:31,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:31,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,263 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:31,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:31,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:31,315 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:31,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:31,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:31,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:31,316 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 5 states. [2018-11-18 11:36:31,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:31,404 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2018-11-18 11:36:31,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:36:31,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-18 11:36:31,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:31,405 INFO L225 Difference]: With dead ends: 108 [2018-11-18 11:36:31,406 INFO L226 Difference]: Without dead ends: 106 [2018-11-18 11:36:31,406 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:36:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-18 11:36:31,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2018-11-18 11:36:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-18 11:36:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-11-18 11:36:31,412 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2018-11-18 11:36:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:31,413 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-11-18 11:36:31,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-11-18 11:36:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 11:36:31,413 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:31,414 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:31,414 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:31,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:31,414 INFO L82 PathProgramCache]: Analyzing trace with hash -2106185532, now seen corresponding path program 1 times [2018-11-18 11:36:31,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:31,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:31,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,416 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:31,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:31,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:31,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:31,453 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:31,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:31,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:31,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:31,454 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 5 states. [2018-11-18 11:36:31,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:31,526 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2018-11-18 11:36:31,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:36:31,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-18 11:36:31,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:31,527 INFO L225 Difference]: With dead ends: 121 [2018-11-18 11:36:31,527 INFO L226 Difference]: Without dead ends: 119 [2018-11-18 11:36:31,528 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:31,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-11-18 11:36:31,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2018-11-18 11:36:31,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 11:36:31,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2018-11-18 11:36:31,534 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2018-11-18 11:36:31,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:31,534 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2018-11-18 11:36:31,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2018-11-18 11:36:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 11:36:31,535 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:31,535 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:31,536 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:31,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:31,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1990437563, now seen corresponding path program 1 times [2018-11-18 11:36:31,536 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:31,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:31,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,537 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:31,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:31,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:31,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:31,570 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:31,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:31,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:31,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:31,570 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 5 states. [2018-11-18 11:36:31,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:31,636 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-11-18 11:36:31,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:36:31,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-18 11:36:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:31,637 INFO L225 Difference]: With dead ends: 77 [2018-11-18 11:36:31,637 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 11:36:31,637 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:31,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 11:36:31,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-18 11:36:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 11:36:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2018-11-18 11:36:31,642 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2018-11-18 11:36:31,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:31,642 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2018-11-18 11:36:31,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:31,643 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2018-11-18 11:36:31,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:36:31,643 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:31,643 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:31,644 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:31,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:31,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1549950965, now seen corresponding path program 1 times [2018-11-18 11:36:31,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:31,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:31,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,645 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:31,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:31,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:36:31,663 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:31,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:36:31,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:36:31,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:36:31,664 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 3 states. [2018-11-18 11:36:31,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:31,687 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2018-11-18 11:36:31,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:36:31,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-11-18 11:36:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:31,690 INFO L225 Difference]: With dead ends: 115 [2018-11-18 11:36:31,690 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 11:36:31,690 INFO L604 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 [2018-11-18 11:36:31,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 11:36:31,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-18 11:36:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 11:36:31,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2018-11-18 11:36:31,693 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2018-11-18 11:36:31,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:31,693 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2018-11-18 11:36:31,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:36:31,694 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2018-11-18 11:36:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 11:36:31,694 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:31,694 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:31,694 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:31,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:31,695 INFO L82 PathProgramCache]: Analyzing trace with hash 54388864, now seen corresponding path program 1 times [2018-11-18 11:36:31,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:31,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:31,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,695 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:31,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:31,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:36:31,734 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:31,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:36:31,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:36:31,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:31,735 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 7 states. [2018-11-18 11:36:31,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:31,795 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2018-11-18 11:36:31,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:31,795 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-11-18 11:36:31,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:31,796 INFO L225 Difference]: With dead ends: 76 [2018-11-18 11:36:31,796 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 11:36:31,796 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:36:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 11:36:31,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2018-11-18 11:36:31,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 11:36:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2018-11-18 11:36:31,801 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2018-11-18 11:36:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:31,801 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2018-11-18 11:36:31,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:36:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2018-11-18 11:36:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 11:36:31,802 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:31,802 INFO L375 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] [2018-11-18 11:36:31,802 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:31,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:31,803 INFO L82 PathProgramCache]: Analyzing trace with hash -196719107, now seen corresponding path program 1 times [2018-11-18 11:36:31,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:31,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:31,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:31,803 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:36:31,849 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:36:31,849 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:36:31,850 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-11-18 11:36:31,851 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [17], [21], [25], [29], [32], [35], [38], [42], [46], [52], [58], [61], [67], [73], [77], [192], [195], [196], [198], [204], [214], [215], [216] [2018-11-18 11:36:31,870 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:36:31,871 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:36:31,988 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:36:31,989 INFO L272 AbstractInterpreter]: Visited 28 different actions 34 times. Merged at 6 different actions 6 times. Never widened. Performed 164 root evaluator evaluations with a maximum evaluation depth of 6. Performed 164 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-18 11:36:31,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:31,999 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:36:31,999 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:36:31,999 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:36:32,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:32,006 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:36:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:32,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:36:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:36:32,081 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:36:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:36:32,152 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:36:32,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 10 [2018-11-18 11:36:32,152 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:36:32,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:36:32,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:36:32,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:36:32,153 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 9 states. [2018-11-18 11:36:32,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:32,273 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2018-11-18 11:36:32,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:32,273 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-18 11:36:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:32,274 INFO L225 Difference]: With dead ends: 111 [2018-11-18 11:36:32,274 INFO L226 Difference]: Without dead ends: 109 [2018-11-18 11:36:32,275 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:36:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-11-18 11:36:32,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2018-11-18 11:36:32,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-18 11:36:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2018-11-18 11:36:32,283 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2018-11-18 11:36:32,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:32,283 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2018-11-18 11:36:32,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:36:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2018-11-18 11:36:32,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 11:36:32,284 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:32,284 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:32,285 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:32,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:32,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1686057932, now seen corresponding path program 1 times [2018-11-18 11:36:32,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:32,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:32,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,287 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:32,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:32,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:36:32,331 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:32,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:36:32,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:36:32,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:36:32,332 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2018-11-18 11:36:32,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:32,405 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-11-18 11:36:32,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:32,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-18 11:36:32,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:32,405 INFO L225 Difference]: With dead ends: 70 [2018-11-18 11:36:32,405 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 11:36:32,406 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:36:32,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 11:36:32,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-18 11:36:32,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 11:36:32,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-11-18 11:36:32,409 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2018-11-18 11:36:32,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:32,409 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-11-18 11:36:32,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:36:32,409 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-11-18 11:36:32,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 11:36:32,409 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:32,409 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 11:36:32,410 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:32,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:32,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1806773561, now seen corresponding path program 1 times [2018-11-18 11:36:32,410 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:32,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:32,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,412 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:36:32,468 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:36:32,468 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:36:32,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-11-18 11:36:32,468 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [17], [21], [25], [29], [32], [35], [38], [42], [46], [52], [58], [61], [67], [73], [77], [80], [82], [85], [86], [192], [198], [204], [214], [215], [216] [2018-11-18 11:36:32,469 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:36:32,469 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:36:32,518 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:36:32,518 INFO L272 AbstractInterpreter]: Visited 30 different actions 38 times. Merged at 8 different actions 8 times. Never widened. Performed 182 root evaluator evaluations with a maximum evaluation depth of 6. Performed 182 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-11-18 11:36:32,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:32,531 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:36:32,531 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:36:32,531 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:36:32,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:32,544 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:36:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:32,556 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:36:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:36:32,580 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:36:32,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:36:32,624 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:36:32,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 10 [2018-11-18 11:36:32,624 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:36:32,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:36:32,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:36:32,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:36:32,625 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 9 states. [2018-11-18 11:36:32,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:32,682 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2018-11-18 11:36:32,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:32,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-11-18 11:36:32,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:32,682 INFO L225 Difference]: With dead ends: 69 [2018-11-18 11:36:32,683 INFO L226 Difference]: Without dead ends: 67 [2018-11-18 11:36:32,683 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:36:32,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-18 11:36:32,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2018-11-18 11:36:32,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-18 11:36:32,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2018-11-18 11:36:32,686 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2018-11-18 11:36:32,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:32,686 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2018-11-18 11:36:32,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:36:32,686 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2018-11-18 11:36:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 11:36:32,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:32,687 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:32,687 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:32,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:32,688 INFO L82 PathProgramCache]: Analyzing trace with hash -287576151, now seen corresponding path program 1 times [2018-11-18 11:36:32,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:32,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:32,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:32,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:32,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:32,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:36:32,737 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:32,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:36:32,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:36:32,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:32,737 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 7 states. [2018-11-18 11:36:32,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:32,795 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2018-11-18 11:36:32,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:32,796 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-18 11:36:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:32,796 INFO L225 Difference]: With dead ends: 63 [2018-11-18 11:36:32,796 INFO L226 Difference]: Without dead ends: 61 [2018-11-18 11:36:32,796 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:36:32,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-18 11:36:32,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2018-11-18 11:36:32,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-18 11:36:32,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2018-11-18 11:36:32,800 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2018-11-18 11:36:32,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:32,800 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2018-11-18 11:36:32,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:36:32,801 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2018-11-18 11:36:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 11:36:32,801 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:32,801 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:32,802 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:32,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:32,802 INFO L82 PathProgramCache]: Analyzing trace with hash -324922921, now seen corresponding path program 1 times [2018-11-18 11:36:32,802 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:32,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:32,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,803 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:32,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:32,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:32,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:36:32,851 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:32,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:36:32,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:36:32,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:32,852 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2018-11-18 11:36:32,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:32,911 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2018-11-18 11:36:32,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:36:32,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-11-18 11:36:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:32,912 INFO L225 Difference]: With dead ends: 71 [2018-11-18 11:36:32,912 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 11:36:32,912 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:36:32,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 11:36:32,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2018-11-18 11:36:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 11:36:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-11-18 11:36:32,916 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2018-11-18 11:36:32,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:32,916 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-11-18 11:36:32,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:36:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-11-18 11:36:32,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 11:36:32,917 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:32,917 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:32,917 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:32,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:32,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1080633106, now seen corresponding path program 1 times [2018-11-18 11:36:32,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:32,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:32,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:32,918 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:32,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:32,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:32,962 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:32,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:32,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:32,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:32,962 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 5 states. [2018-11-18 11:36:33,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:33,035 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2018-11-18 11:36:33,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:36:33,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-11-18 11:36:33,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:33,037 INFO L225 Difference]: With dead ends: 91 [2018-11-18 11:36:33,037 INFO L226 Difference]: Without dead ends: 89 [2018-11-18 11:36:33,037 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-18 11:36:33,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2018-11-18 11:36:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-18 11:36:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2018-11-18 11:36:33,041 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2018-11-18 11:36:33,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:33,042 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2018-11-18 11:36:33,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:33,042 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2018-11-18 11:36:33,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 11:36:33,043 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:33,044 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:33,044 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:33,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:33,044 INFO L82 PathProgramCache]: Analyzing trace with hash -860108895, now seen corresponding path program 1 times [2018-11-18 11:36:33,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:33,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:33,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,045 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:33,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:33,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:33,098 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:33,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:33,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:33,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:33,098 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 5 states. [2018-11-18 11:36:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:33,155 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2018-11-18 11:36:33,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:36:33,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-11-18 11:36:33,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:33,156 INFO L225 Difference]: With dead ends: 61 [2018-11-18 11:36:33,156 INFO L226 Difference]: Without dead ends: 59 [2018-11-18 11:36:33,156 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:33,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-18 11:36:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-11-18 11:36:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-18 11:36:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2018-11-18 11:36:33,161 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2018-11-18 11:36:33,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:33,161 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2018-11-18 11:36:33,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2018-11-18 11:36:33,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 11:36:33,161 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:33,162 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:33,162 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:33,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:33,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1930828060, now seen corresponding path program 1 times [2018-11-18 11:36:33,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:33,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:33,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,163 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:33,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:33,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:33,193 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:33,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:33,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:33,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:33,194 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2018-11-18 11:36:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:33,242 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-11-18 11:36:33,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:33,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-11-18 11:36:33,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:33,243 INFO L225 Difference]: With dead ends: 70 [2018-11-18 11:36:33,243 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 11:36:33,243 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:36:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 11:36:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2018-11-18 11:36:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-18 11:36:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2018-11-18 11:36:33,247 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 41 [2018-11-18 11:36:33,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:33,248 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2018-11-18 11:36:33,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:33,248 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-11-18 11:36:33,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 11:36:33,248 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:33,248 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:33,249 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:33,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:33,249 INFO L82 PathProgramCache]: Analyzing trace with hash 273875486, now seen corresponding path program 1 times [2018-11-18 11:36:33,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:33,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:33,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,250 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:33,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:33,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:36:33,274 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:33,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:36:33,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:36:33,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:36:33,275 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 6 states. [2018-11-18 11:36:33,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:33,306 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2018-11-18 11:36:33,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:33,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2018-11-18 11:36:33,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:33,307 INFO L225 Difference]: With dead ends: 66 [2018-11-18 11:36:33,307 INFO L226 Difference]: Without dead ends: 64 [2018-11-18 11:36:33,307 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:36:33,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-18 11:36:33,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2018-11-18 11:36:33,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-18 11:36:33,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2018-11-18 11:36:33,311 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 42 [2018-11-18 11:36:33,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:33,311 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2018-11-18 11:36:33,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:36:33,311 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2018-11-18 11:36:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 11:36:33,312 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:33,312 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:33,312 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:33,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:33,312 INFO L82 PathProgramCache]: Analyzing trace with hash -99791318, now seen corresponding path program 1 times [2018-11-18 11:36:33,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:33,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:33,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,313 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:33,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:33,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:33,343 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:33,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:33,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:33,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:33,344 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 5 states. [2018-11-18 11:36:33,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:33,410 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2018-11-18 11:36:33,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:36:33,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-11-18 11:36:33,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:33,412 INFO L225 Difference]: With dead ends: 88 [2018-11-18 11:36:33,412 INFO L226 Difference]: Without dead ends: 86 [2018-11-18 11:36:33,412 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:33,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-11-18 11:36:33,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 60. [2018-11-18 11:36:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-18 11:36:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-11-18 11:36:33,416 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 43 [2018-11-18 11:36:33,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:33,416 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-11-18 11:36:33,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:33,416 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-11-18 11:36:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 11:36:33,416 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:33,416 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:33,417 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:33,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:33,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2020599801, now seen corresponding path program 1 times [2018-11-18 11:36:33,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:33,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:33,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,418 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:33,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:36:33,461 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:36:33,461 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-11-18 11:36:33,461 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [17], [21], [25], [29], [32], [35], [38], [42], [46], [52], [58], [61], [67], [73], [77], [80], [82], [88], [94], [100], [106], [112], [117], [120], [126], [132], [136], [139], [142], [143], [145], [151], [180], [182], [214], [215], [216] [2018-11-18 11:36:33,463 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:36:33,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:36:33,503 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:36:33,503 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Performed 178 root evaluator evaluations with a maximum evaluation depth of 6. Performed 178 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 44 variables. [2018-11-18 11:36:33,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:33,505 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:36:33,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:36:33,505 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:36:33,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:33,520 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:36:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:33,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:36:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:33,591 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:36:33,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:33,647 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 11:36:33,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 10 [2018-11-18 11:36:33,647 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 11:36:33,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:36:33,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:36:33,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:36:33,648 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 9 states. [2018-11-18 11:36:33,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:33,696 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-11-18 11:36:33,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:36:33,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2018-11-18 11:36:33,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:33,696 INFO L225 Difference]: With dead ends: 60 [2018-11-18 11:36:33,696 INFO L226 Difference]: Without dead ends: 58 [2018-11-18 11:36:33,697 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:36:33,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-18 11:36:33,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-18 11:36:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 11:36:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-11-18 11:36:33,700 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 44 [2018-11-18 11:36:33,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:33,701 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-11-18 11:36:33,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:36:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-11-18 11:36:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 11:36:33,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:33,701 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:36:33,701 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:33,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:33,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1201439652, now seen corresponding path program 1 times [2018-11-18 11:36:33,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:33,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:33,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,702 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:36:33,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:33,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:33,751 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:33,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:33,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:33,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:33,751 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 5 states. [2018-11-18 11:36:33,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:33,808 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2018-11-18 11:36:33,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:36:33,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-11-18 11:36:33,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:33,808 INFO L225 Difference]: With dead ends: 69 [2018-11-18 11:36:33,809 INFO L226 Difference]: Without dead ends: 67 [2018-11-18 11:36:33,809 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:36:33,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-18 11:36:33,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2018-11-18 11:36:33,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-18 11:36:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-11-18 11:36:33,814 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 44 [2018-11-18 11:36:33,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:33,815 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-11-18 11:36:33,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-11-18 11:36:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 11:36:33,815 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:36:33,815 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 11:36:33,816 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:36:33,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:33,816 INFO L82 PathProgramCache]: Analyzing trace with hash 40764835, now seen corresponding path program 1 times [2018-11-18 11:36:33,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:36:33,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:36:33,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:36:33,817 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:36:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:36:33,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:36:33,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:36:33,872 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:36:33,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:36:33,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:36:33,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:36:33,873 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 5 states. [2018-11-18 11:36:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:36:33,977 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2018-11-18 11:36:33,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:36:33,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-11-18 11:36:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:36:33,978 INFO L225 Difference]: With dead ends: 75 [2018-11-18 11:36:33,978 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:36:33,978 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:36:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:36:33,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:36:33,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:36:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:36:33,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-11-18 11:36:33,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:36:33,979 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:36:33,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:36:33,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:36:33,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:36:33,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:36:34,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:36:34,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:36:34,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:36:34,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:36:34,307 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2018-11-18 11:36:34,566 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2018-11-18 11:36:34,650 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:36:34,650 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:36:34,650 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 11:36:34,651 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point L60(lines 60 412) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point L250(line 250) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 434) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point L118(lines 118 398) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point L209(line 209) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point L267(line 267) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 430) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 369) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point L152(line 152) no Hoare annotation was computed. [2018-11-18 11:36:34,651 INFO L425 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 209) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 221) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point L367(lines 367 390) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 409) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 311) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point L219(lines 219 339) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point L120(line 120) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 427) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L421 ceAbstractionStarter]: At program point L310(lines 225 339) the Hoare annotation is: (let ((.cse2 (<= 2 main_~main__cp~0)) (.cse1 (= main_~main__c~0 0)) (.cse3 (= main_~__VERIFIER_assert__cond~9 1)) (.cse4 (and (and (not (= 0 main_~__VERIFIER_assert__cond~7)) (and (= main_~__VERIFIER_assert__cond~3 1) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~5)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (<= 1 main_~main__scheme~0) (not (= 0 main_~__VERIFIER_assert__cond~6)) (not (= 0 main_~__VERIFIER_assert__cond~1))) (<= 1 main_~main__cp~0) (= main_~__VERIFIER_assert__cond~0 1) (= main_~__VERIFIER_assert__cond~4 1)) (not (= 0 main_~__VERIFIER_assert__cond~8))))) (or (and (let ((.cse0 (let ((.cse5 (not (= 0 main_~__VERIFIER_assert__cond~11)))) (or (and .cse2 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse3 .cse4 .cse5) (and .cse2 .cse3 .cse4 .cse5 (not (= 0 main_~__VERIFIER_assert__cond~12))))))) (or (and (<= 1 main_~main__c~0) (not (= 0 main_~__VERIFIER_assert__cond~13)) .cse0) (and .cse1 .cse0))) (= main_~__VERIFIER_assert__cond~10 1)) (and .cse2 (<= (+ main_~main__cp~0 2) main_~main__urilen~0) .cse1 .cse3 .cse4 (= main_~__VERIFIER_assert__cond~8 1)))) [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 315) no Hoare annotation was computed. [2018-11-18 11:36:34,652 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 434) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 326) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 267) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point L170(lines 170 352) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 250) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 303) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 431) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 291) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 434) the Hoare annotation is: true [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 238) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point L369(line 369) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point L303(line 303) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point L138(lines 138 357) no Hoare annotation was computed. [2018-11-18 11:36:34,653 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 279) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 333) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L130(lines 130 392) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L221(line 221) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 422) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L279(line 279) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 120) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 428) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L238(line 238) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point L106(lines 106 400) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-18 11:36:34,654 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2018-11-18 11:36:34,655 INFO L421 ceAbstractionStarter]: At program point L387(lines 124 398) the Hoare annotation is: (and (let ((.cse0 (= main_~__VERIFIER_assert__cond~3 1)) (.cse1 (<= 1 main_~main__cp~0)) (.cse2 (<= 1 main_~main__scheme~0)) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~1)))) (or (and .cse0 (= main_~__VERIFIER_assert__cond~2 1) .cse1 .cse2 .cse3) (and .cse0 (not (= 0 main_~__VERIFIER_assert__cond~2)) .cse1 (not (= 0 main_~__VERIFIER_assert__cond~17)) (= main_~__VERIFIER_assert__cond~16 1) .cse2 .cse3))) (< main_~main__cp~0 main_~main__urilen~0) (= main_~__VERIFIER_assert__cond~0 1)) [2018-11-18 11:36:34,655 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 349) no Hoare annotation was computed. [2018-11-18 11:36:34,655 INFO L425 ceAbstractionStarter]: For program point L379(lines 379 388) no Hoare annotation was computed. [2018-11-18 11:36:34,655 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 407) no Hoare annotation was computed. [2018-11-18 11:36:34,655 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 432) no Hoare annotation was computed. [2018-11-18 11:36:34,655 INFO L425 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-11-18 11:36:34,655 INFO L421 ceAbstractionStarter]: At program point L396(lines 126 397) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~3 1) (let ((.cse0 (<= 1 main_~main__cp~0)) (.cse1 (= main_~__VERIFIER_assert__cond~0 1)) (.cse2 (<= 1 main_~main__scheme~0)) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~1)))) (or (and (not (= 0 main_~__VERIFIER_assert__cond~2)) .cse0 .cse1 (not (= 0 main_~__VERIFIER_assert__cond~16)) .cse2 .cse3) (and (= main_~__VERIFIER_assert__cond~2 1) .cse0 .cse1 .cse2 .cse3))) (< main_~main__cp~0 main_~main__urilen~0)) [2018-11-18 11:36:34,655 INFO L425 ceAbstractionStarter]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2018-11-18 11:36:34,655 INFO L425 ceAbstractionStarter]: For program point L99(lines 99 406) no Hoare annotation was computed. [2018-11-18 11:36:34,655 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 411) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L421 ceAbstractionStarter]: At program point L322(lines 257 323) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~10 1) (let ((.cse0 (let ((.cse1 (<= 2 main_~main__cp~0)) (.cse2 (not (= 0 main_~__VERIFIER_assert__cond~7))) (.cse3 (= main_~__VERIFIER_assert__cond~3 1)) (.cse4 (not (= 0 main_~__VERIFIER_assert__cond~2))) (.cse5 (not (= 0 main_~__VERIFIER_assert__cond~5))) (.cse6 (not (= 0 main_~__VERIFIER_assert__cond~8))) (.cse7 (not (= 0 main_~__VERIFIER_assert__cond~11))) (.cse8 (= main_~__VERIFIER_assert__cond~9 1)) (.cse9 (< (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse10 (= main_~__VERIFIER_assert__cond~0 1)) (.cse11 (= main_~__VERIFIER_assert__cond~4 1)) (.cse12 (<= 1 main_~main__scheme~0)) (.cse13 (not (= 0 main_~__VERIFIER_assert__cond~6))) (.cse14 (not (= 0 main_~__VERIFIER_assert__cond~1)))) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= 0 main_~__VERIFIER_assert__cond~12)) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse1 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14))))) (or (and (<= 1 main_~main__c~0) (not (= 0 main_~__VERIFIER_assert__cond~13)) .cse0) (and .cse0 (= main_~main__c~0 0))))) [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L289(lines 289 313) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L157(lines 157 354) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 417) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L248(lines 248 324) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L182(lines 182 350) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L421 ceAbstractionStarter]: At program point L405(lines 99 406) the Hoare annotation is: (= main_~__VERIFIER_assert__cond~0 1) [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L207(lines 207 341) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L108(line 108) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 429) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 317) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L199(lines 199 348) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L257(lines 257 323) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L381(line 381) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L92(line 92) no Hoare annotation was computed. [2018-11-18 11:36:34,656 INFO L425 ceAbstractionStarter]: For program point L150(lines 150 355) no Hoare annotation was computed. [2018-11-18 11:36:34,657 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2018-11-18 11:36:34,657 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 433) no Hoare annotation was computed. [2018-11-18 11:36:34,657 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 172) no Hoare annotation was computed. [2018-11-18 11:36:34,657 INFO L425 ceAbstractionStarter]: For program point L291(line 291) no Hoare annotation was computed. [2018-11-18 11:36:34,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:36:34 BoogieIcfgContainer [2018-11-18 11:36:34,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:36:34,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:36:34,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:36:34,676 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:36:34,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:30" (3/4) ... [2018-11-18 11:36:34,679 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:36:34,684 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:36:34,684 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:36:34,689 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 11:36:34,690 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 11:36:34,745 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b8763070-0977-45cd-9ad0-78dc7c2fc8a8/bin-2019/utaipan/witness.graphml [2018-11-18 11:36:34,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:36:34,746 INFO L168 Benchmark]: Toolchain (without parser) took 4938.28 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.7 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -141.3 MB). Peak memory consumption was 176.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:36:34,746 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:36:34,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.03 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 945.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:36:34,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.64 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:36:34,747 INFO L168 Benchmark]: Boogie Preprocessor took 54.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:36:34,747 INFO L168 Benchmark]: RCFGBuilder took 309.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:36:34,747 INFO L168 Benchmark]: TraceAbstraction took 4284.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -7.2 MB). Peak memory consumption was 388.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:36:34,747 INFO L168 Benchmark]: Witness Printer took 69.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:36:34,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.03 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 945.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.64 ms. Allocated memory is still 1.0 GB. Free memory was 945.8 MB in the beginning and 943.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 309.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4284.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -7.2 MB). Peak memory consumption was 388.2 MB. Max. memory is 11.5 GB. * Witness Printer took 69.64 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 184]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 381]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 172]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 267]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 140]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 152]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 279]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 369]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 250]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 238]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 92]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 303]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 221]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 120]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 209]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 291]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 225]: Loop Invariant Derived loop invariant: ((((1 <= main__c && !(0 == __VERIFIER_assert__cond)) && (((((2 <= main__cp && main__c + 2 <= main__tokenlen) && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) || ((((2 <= main__cp && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)))) || (main__c == 0 && (((((2 <= main__cp && main__c + 2 <= main__tokenlen) && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) || ((((2 <= main__cp && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond))))) && __VERIFIER_assert__cond == 1) || (((((2 <= main__cp && main__cp + 2 <= main__urilen) && main__c == 0) && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (__VERIFIER_assert__cond == 1 && ((((((!(0 == __VERIFIER_assert__cond) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) || ((((__VERIFIER_assert__cond == 1 && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)))) && main__cp < main__urilen - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: __VERIFIER_assert__cond == 1 && (((1 <= main__c && !(0 == __VERIFIER_assert__cond)) && (((((((((((((((2 <= main__cp && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) || ((((((((((((((2 <= main__cp && main__c + 2 <= main__tokenlen) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)))) || ((((((((((((((((2 <= main__cp && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) || ((((((((((((((2 <= main__cp && main__c + 2 <= main__tokenlen) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond))) && main__c == 0)) - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: ((((((__VERIFIER_assert__cond == 1 && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) || ((((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond))) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: __VERIFIER_assert__cond == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 87 locations, 18 error locations. SAFE Result, 4.2s OverallTime, 23 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 1337 SDtfs, 2961 SDslu, 1868 SDs, 0 SdLazy, 1141 SolverSat, 172 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 412 GetRequests, 248 SyntacticMatches, 16 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 311 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 685 HoareAnnotationTreeSize, 9 FomulaSimplifications, 326253 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 80271 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 855 NumberOfCodeBlocks, 855 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 931 ConstructedInterpolants, 0 QuantifiedInterpolants, 71718 SizeOfPredicates, 27 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 29 InterpolantComputations, 20 PerfectInterpolantSequences, 11/29 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...