./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label47_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label47_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/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 263f5bcc0dd18a6a1141604b5838ae66dccd2a0e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:55:53,105 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:55:53,106 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:55:53,113 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:55:53,114 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:55:53,115 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:55:53,115 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:55:53,117 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:55:53,118 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:55:53,118 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:55:53,119 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:55:53,119 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:55:53,120 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:55:53,121 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:55:53,121 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:55:53,122 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:55:53,123 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:55:53,124 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:55:53,125 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:55:53,126 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:55:53,127 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:55:53,128 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:55:53,129 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:55:53,129 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:55:53,130 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:55:53,130 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:55:53,131 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:55:53,132 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:55:53,132 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:55:53,133 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:55:53,133 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:55:53,134 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:55:53,134 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:55:53,134 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:55:53,135 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:55:53,135 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:55:53,135 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 14:55:53,145 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:55:53,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:55:53,146 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:55:53,146 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:55:53,146 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 14:55:53,147 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 14:55:53,147 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 14:55:53,147 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 14:55:53,147 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 14:55:53,147 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 14:55:53,147 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 14:55:53,147 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 14:55:53,148 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 14:55:53,148 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:55:53,148 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:55:53,148 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:55:53,149 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:55:53,149 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:55:53,149 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:55:53,149 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:55:53,149 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:55:53,149 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:55:53,149 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:55:53,150 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:55:53,150 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:55:53,150 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:55:53,150 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:55:53,150 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:55:53,150 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:55:53,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:55:53,151 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:55:53,151 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:55:53,151 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:55:53,151 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 14:55:53,151 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:55:53,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:55:53,151 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 14:55:53,152 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_a13b6de3-63be-46c8-ae9e-7cc6f513b476/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 -> 263f5bcc0dd18a6a1141604b5838ae66dccd2a0e [2018-11-23 14:55:53,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:55:53,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:55:53,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:55:53,188 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:55:53,188 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:55:53,189 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label47_true-unreach-call_false-termination.c [2018-11-23 14:55:53,233 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/data/3d989632b/9ae70cc6f7b24e7c952b3355539ec31e/FLAGbaf3e5b75 [2018-11-23 14:55:53,593 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:55:53,593 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/sv-benchmarks/c/eca-rers2012/Problem14_label47_true-unreach-call_false-termination.c [2018-11-23 14:55:53,603 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/data/3d989632b/9ae70cc6f7b24e7c952b3355539ec31e/FLAGbaf3e5b75 [2018-11-23 14:55:53,614 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/data/3d989632b/9ae70cc6f7b24e7c952b3355539ec31e [2018-11-23 14:55:53,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:55:53,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:55:53,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:55:53,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:55:53,620 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:55:53,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:55:53" (1/1) ... [2018-11-23 14:55:53,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb4fcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:53, skipping insertion in model container [2018-11-23 14:55:53,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:55:53" (1/1) ... [2018-11-23 14:55:53,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:55:53,667 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:55:53,935 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:55:53,938 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:55:54,025 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:55:54,034 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:55:54,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54 WrapperNode [2018-11-23 14:55:54,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:55:54,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:55:54,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:55:54,036 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:55:54,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:55:54,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:55:54,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:55:54,127 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:55:54,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... [2018-11-23 14:55:54,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:55:54,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:55:54,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:55:54,182 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:55:54,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/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 [2018-11-23 14:55:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 14:55:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:55:54,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:55:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 14:55:54,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 14:55:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:55:54,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:55:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:55:54,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:55:55,278 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:55:55,278 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 14:55:55,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:55:55 BoogieIcfgContainer [2018-11-23 14:55:55,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:55:55,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:55:55,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:55:55,282 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:55:55,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:55:53" (1/3) ... [2018-11-23 14:55:55,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cbf9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:55:55, skipping insertion in model container [2018-11-23 14:55:55,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:54" (2/3) ... [2018-11-23 14:55:55,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cbf9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:55:55, skipping insertion in model container [2018-11-23 14:55:55,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:55:55" (3/3) ... [2018-11-23 14:55:55,285 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label47_true-unreach-call_false-termination.c [2018-11-23 14:55:55,293 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:55:55,300 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:55:55,314 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:55:55,340 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:55:55,340 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:55:55,340 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:55:55,341 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:55:55,341 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:55:55,341 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:55:55,341 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:55:55,341 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:55:55,360 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-11-23 14:55:55,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 14:55:55,366 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:55:55,366 INFO L402 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] [2018-11-23 14:55:55,368 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:55:55,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:55:55,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1824869262, now seen corresponding path program 1 times [2018-11-23 14:55:55,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:55:55,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:55:55,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:55:55,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:55:55,417 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:55:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:55:55,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:55:55,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:55:55,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:55:55,612 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:55:55,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:55:55,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:55:55,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:55:55,629 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-11-23 14:55:56,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:55:56,353 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2018-11-23 14:55:56,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:55:56,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-11-23 14:55:56,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:55:56,367 INFO L225 Difference]: With dead ends: 688 [2018-11-23 14:55:56,367 INFO L226 Difference]: Without dead ends: 432 [2018-11-23 14:55:56,371 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:55:56,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2018-11-23 14:55:56,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2018-11-23 14:55:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-11-23 14:55:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 763 transitions. [2018-11-23 14:55:56,426 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 763 transitions. Word has length 39 [2018-11-23 14:55:56,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:55:56,427 INFO L480 AbstractCegarLoop]: Abstraction has 432 states and 763 transitions. [2018-11-23 14:55:56,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:55:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 763 transitions. [2018-11-23 14:55:56,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-23 14:55:56,431 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:55:56,432 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:55:56,432 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:55:56,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:55:56,432 INFO L82 PathProgramCache]: Analyzing trace with hash 686981166, now seen corresponding path program 1 times [2018-11-23 14:55:56,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:55:56,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:55:56,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:55:56,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:55:56,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:55:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:55:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:55:56,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:55:56,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 14:55:56,610 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:55:56,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:55:56,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:55:56,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:55:56,612 INFO L87 Difference]: Start difference. First operand 432 states and 763 transitions. Second operand 6 states. [2018-11-23 14:55:57,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:55:57,318 INFO L93 Difference]: Finished difference Result 1056 states and 1891 transitions. [2018-11-23 14:55:57,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:55:57,319 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-11-23 14:55:57,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:55:57,322 INFO L225 Difference]: With dead ends: 1056 [2018-11-23 14:55:57,322 INFO L226 Difference]: Without dead ends: 630 [2018-11-23 14:55:57,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:55:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2018-11-23 14:55:57,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 622. [2018-11-23 14:55:57,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2018-11-23 14:55:57,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1016 transitions. [2018-11-23 14:55:57,346 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1016 transitions. Word has length 125 [2018-11-23 14:55:57,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:55:57,347 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1016 transitions. [2018-11-23 14:55:57,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:55:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1016 transitions. [2018-11-23 14:55:57,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-23 14:55:57,350 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:55:57,350 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:55:57,350 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:55:57,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:55:57,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1152023485, now seen corresponding path program 1 times [2018-11-23 14:55:57,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:55:57,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:55:57,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:55:57,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:55:57,352 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:55:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:55:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:55:57,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:55:57,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 14:55:57,439 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:55:57,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:55:57,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:55:57,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:55:57,440 INFO L87 Difference]: Start difference. First operand 622 states and 1016 transitions. Second operand 4 states. [2018-11-23 14:55:58,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:55:58,402 INFO L93 Difference]: Finished difference Result 2340 states and 4004 transitions. [2018-11-23 14:55:58,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:55:58,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2018-11-23 14:55:58,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:55:58,411 INFO L225 Difference]: With dead ends: 2340 [2018-11-23 14:55:58,411 INFO L226 Difference]: Without dead ends: 1724 [2018-11-23 14:55:58,415 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:55:58,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2018-11-23 14:55:58,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1724. [2018-11-23 14:55:58,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1724 states. [2018-11-23 14:55:58,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2638 transitions. [2018-11-23 14:55:58,461 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2638 transitions. Word has length 134 [2018-11-23 14:55:58,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:55:58,461 INFO L480 AbstractCegarLoop]: Abstraction has 1724 states and 2638 transitions. [2018-11-23 14:55:58,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:55:58,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2638 transitions. [2018-11-23 14:55:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-11-23 14:55:58,470 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:55:58,470 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:55:58,470 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:55:58,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:55:58,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2008848013, now seen corresponding path program 1 times [2018-11-23 14:55:58,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:55:58,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:55:58,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:55:58,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:55:58,472 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:55:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:55:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 64 proven. 107 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 14:55:58,775 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:55:58,775 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:55:58,776 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-11-23 14:55:58,778 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:55:58,815 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:55:58,815 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:56:01,206 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 14:56:01,207 INFO L272 AbstractInterpreter]: Visited 117 different actions 117 times. Never merged. Never widened. Performed 1046 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1046 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-11-23 14:56:01,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:56:01,217 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 14:56:02,876 INFO L227 lantSequenceWeakener]: Weakened 253 states. On average, predicates are now at 77.66% of their original sizes. [2018-11-23 14:56:02,877 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 14:56:02,908 INFO L415 sIntCurrentIteration]: We unified 261 AI predicates to 261 [2018-11-23 14:56:02,908 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 14:56:02,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:56:02,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-23 14:56:02,909 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:56:02,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:56:02,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:56:02,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:56:02,910 INFO L87 Difference]: Start difference. First operand 1724 states and 2638 transitions. Second operand 6 states. [2018-11-23 14:56:15,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:56:15,371 INFO L93 Difference]: Finished difference Result 3625 states and 5548 transitions. [2018-11-23 14:56:15,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:56:15,371 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 262 [2018-11-23 14:56:15,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:56:15,379 INFO L225 Difference]: With dead ends: 3625 [2018-11-23 14:56:15,379 INFO L226 Difference]: Without dead ends: 1907 [2018-11-23 14:56:15,385 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 262 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:56:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2018-11-23 14:56:15,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1906. [2018-11-23 14:56:15,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1906 states. [2018-11-23 14:56:15,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2828 transitions. [2018-11-23 14:56:15,427 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2828 transitions. Word has length 262 [2018-11-23 14:56:15,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:56:15,427 INFO L480 AbstractCegarLoop]: Abstraction has 1906 states and 2828 transitions. [2018-11-23 14:56:15,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:56:15,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2828 transitions. [2018-11-23 14:56:15,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-11-23 14:56:15,436 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:56:15,436 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:56:15,436 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:56:15,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:56:15,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1769612725, now seen corresponding path program 1 times [2018-11-23 14:56:15,437 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:56:15,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:56:15,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:56:15,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:56:15,438 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:56:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:56:15,892 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 182 proven. 189 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 14:56:15,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:56:15,892 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:56:15,892 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 347 with the following transitions: [2018-11-23 14:56:15,892 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:56:15,895 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:56:15,895 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:56:19,272 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 14:56:19,273 INFO L272 AbstractInterpreter]: Visited 121 different actions 235 times. Merged at 3 different actions 3 times. Never widened. Performed 2149 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2149 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 14:56:19,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:56:19,277 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 14:56:20,979 INFO L227 lantSequenceWeakener]: Weakened 343 states. On average, predicates are now at 77.61% of their original sizes. [2018-11-23 14:56:20,980 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 14:56:21,039 INFO L415 sIntCurrentIteration]: We unified 345 AI predicates to 345 [2018-11-23 14:56:21,040 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 14:56:21,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:56:21,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-23 14:56:21,040 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:56:21,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 14:56:21,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 14:56:21,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:56:21,041 INFO L87 Difference]: Start difference. First operand 1906 states and 2828 transitions. Second operand 10 states. [2018-11-23 14:56:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:56:45,716 INFO L93 Difference]: Finished difference Result 4365 states and 6437 transitions. [2018-11-23 14:56:45,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 14:56:45,716 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 346 [2018-11-23 14:56:45,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:56:45,723 INFO L225 Difference]: With dead ends: 4365 [2018-11-23 14:56:45,723 INFO L226 Difference]: Without dead ends: 2279 [2018-11-23 14:56:45,727 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 354 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 14:56:45,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2018-11-23 14:56:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2278. [2018-11-23 14:56:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2278 states. [2018-11-23 14:56:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2278 states to 2278 states and 3223 transitions. [2018-11-23 14:56:45,762 INFO L78 Accepts]: Start accepts. Automaton has 2278 states and 3223 transitions. Word has length 346 [2018-11-23 14:56:45,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:56:45,762 INFO L480 AbstractCegarLoop]: Abstraction has 2278 states and 3223 transitions. [2018-11-23 14:56:45,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 14:56:45,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2278 states and 3223 transitions. [2018-11-23 14:56:45,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2018-11-23 14:56:45,769 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:56:45,769 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:56:45,769 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:56:45,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:56:45,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2021235418, now seen corresponding path program 1 times [2018-11-23 14:56:45,770 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:56:45,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:56:45,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:56:45,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:56:45,771 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:56:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:56:46,223 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 321 proven. 249 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-23 14:56:46,224 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:56:46,224 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:56:46,224 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 446 with the following transitions: [2018-11-23 14:56:46,224 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:56:46,226 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:56:46,226 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:56:49,012 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 14:56:49,012 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 4 different actions 4 times. Never widened. Performed 2160 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2160 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 14:56:49,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:56:49,017 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 14:56:50,621 INFO L227 lantSequenceWeakener]: Weakened 442 states. On average, predicates are now at 77.56% of their original sizes. [2018-11-23 14:56:50,621 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 14:56:50,679 INFO L415 sIntCurrentIteration]: We unified 444 AI predicates to 444 [2018-11-23 14:56:50,679 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 14:56:50,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:56:50,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-23 14:56:50,679 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:56:50,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 14:56:50,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 14:56:50,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:56:50,680 INFO L87 Difference]: Start difference. First operand 2278 states and 3223 transitions. Second operand 10 states. [2018-11-23 14:57:01,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:57:01,459 INFO L93 Difference]: Finished difference Result 4182 states and 6062 transitions. [2018-11-23 14:57:01,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 14:57:01,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 445 [2018-11-23 14:57:01,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:57:01,465 INFO L225 Difference]: With dead ends: 4182 [2018-11-23 14:57:01,465 INFO L226 Difference]: Without dead ends: 2092 [2018-11-23 14:57:01,471 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 452 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 14:57:01,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2018-11-23 14:57:01,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2090. [2018-11-23 14:57:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-11-23 14:57:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3009 transitions. [2018-11-23 14:57:01,509 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3009 transitions. Word has length 445 [2018-11-23 14:57:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:57:01,510 INFO L480 AbstractCegarLoop]: Abstraction has 2090 states and 3009 transitions. [2018-11-23 14:57:01,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 14:57:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3009 transitions. [2018-11-23 14:57:01,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-11-23 14:57:01,522 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:57:01,522 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:57:01,522 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:57:01,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:01,523 INFO L82 PathProgramCache]: Analyzing trace with hash -358273966, now seen corresponding path program 1 times [2018-11-23 14:57:01,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:57:01,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:01,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:01,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:01,524 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:57:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 356 proven. 111 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2018-11-23 14:57:01,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:01,939 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:57:01,939 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 482 with the following transitions: [2018-11-23 14:57:01,939 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:57:01,942 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:57:01,942 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:57:08,462 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 14:57:08,462 INFO L272 AbstractInterpreter]: Visited 122 different actions 359 times. Merged at 6 different actions 13 times. Never widened. Performed 3415 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3415 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 14:57:08,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:08,465 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 14:57:09,410 INFO L227 lantSequenceWeakener]: Weakened 478 states. On average, predicates are now at 80.18% of their original sizes. [2018-11-23 14:57:09,410 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 14:57:09,450 INFO L415 sIntCurrentIteration]: We unified 480 AI predicates to 480 [2018-11-23 14:57:09,450 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 14:57:09,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:57:09,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-23 14:57:09,451 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:57:09,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:57:09,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:57:09,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:57:09,452 INFO L87 Difference]: Start difference. First operand 2090 states and 3009 transitions. Second operand 9 states. [2018-11-23 14:57:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:57:23,379 INFO L93 Difference]: Finished difference Result 4517 states and 6739 transitions. [2018-11-23 14:57:23,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 14:57:23,379 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 481 [2018-11-23 14:57:23,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:57:23,387 INFO L225 Difference]: With dead ends: 4517 [2018-11-23 14:57:23,387 INFO L226 Difference]: Without dead ends: 2799 [2018-11-23 14:57:23,393 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 487 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-23 14:57:23,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2018-11-23 14:57:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2787. [2018-11-23 14:57:23,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2787 states. [2018-11-23 14:57:23,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3907 transitions. [2018-11-23 14:57:23,444 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3907 transitions. Word has length 481 [2018-11-23 14:57:23,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:57:23,445 INFO L480 AbstractCegarLoop]: Abstraction has 2787 states and 3907 transitions. [2018-11-23 14:57:23,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:57:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3907 transitions. [2018-11-23 14:57:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2018-11-23 14:57:23,454 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:57:23,455 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:57:23,455 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:57:23,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:23,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1776027035, now seen corresponding path program 1 times [2018-11-23 14:57:23,455 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:57:23,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:23,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:23,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:23,456 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:57:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:24,197 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 357 proven. 321 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-23 14:57:24,197 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:24,197 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:57:24,197 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 549 with the following transitions: [2018-11-23 14:57:24,198 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:57:24,201 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:57:24,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:57:28,458 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:57:28,459 INFO L272 AbstractInterpreter]: Visited 190 different actions 753 times. Merged at 8 different actions 26 times. Never widened. Performed 8233 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8233 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 14:57:28,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:28,462 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:57:28,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:28,462 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/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 [2018-11-23 14:57:28,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:28,468 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:57:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:28,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:57:28,843 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 645 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-11-23 14:57:28,843 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:57:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 356 proven. 111 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2018-11-23 14:57:29,227 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:57:29,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-11-23 14:57:29,228 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:57:29,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 14:57:29,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 14:57:29,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-11-23 14:57:29,229 INFO L87 Difference]: Start difference. First operand 2787 states and 3907 transitions. Second operand 17 states. [2018-11-23 14:57:34,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:57:34,140 INFO L93 Difference]: Finished difference Result 7574 states and 11508 transitions. [2018-11-23 14:57:34,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-11-23 14:57:34,142 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 548 [2018-11-23 14:57:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:57:34,154 INFO L225 Difference]: With dead ends: 7574 [2018-11-23 14:57:34,154 INFO L226 Difference]: Without dead ends: 5159 [2018-11-23 14:57:34,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1186 GetRequests, 1125 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=797, Invalid=3109, Unknown=0, NotChecked=0, Total=3906 [2018-11-23 14:57:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5159 states. [2018-11-23 14:57:34,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5159 to 5066. [2018-11-23 14:57:34,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5066 states. [2018-11-23 14:57:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 6891 transitions. [2018-11-23 14:57:34,225 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 6891 transitions. Word has length 548 [2018-11-23 14:57:34,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:57:34,225 INFO L480 AbstractCegarLoop]: Abstraction has 5066 states and 6891 transitions. [2018-11-23 14:57:34,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 14:57:34,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 6891 transitions. [2018-11-23 14:57:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2018-11-23 14:57:34,231 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:57:34,232 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:57:34,232 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:57:34,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:34,232 INFO L82 PathProgramCache]: Analyzing trace with hash -722783022, now seen corresponding path program 1 times [2018-11-23 14:57:34,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:57:34,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:34,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:34,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:34,233 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:57:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:34,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 471 proven. 457 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-11-23 14:57:34,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:34,836 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:57:34,836 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 554 with the following transitions: [2018-11-23 14:57:34,836 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:57:34,838 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:57:34,838 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:57:42,006 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:57:42,006 INFO L272 AbstractInterpreter]: Visited 124 different actions 489 times. Merged at 8 different actions 26 times. Never widened. Performed 4784 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4784 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 14:57:42,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:42,009 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:57:42,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:42,009 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/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 [2018-11-23 14:57:42,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:42,015 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:57:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:42,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:57:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 824 proven. 2 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-11-23 14:57:42,345 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:57:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 467 proven. 111 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2018-11-23 14:57:42,687 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:57:42,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-23 14:57:42,688 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:57:42,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 14:57:42,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 14:57:42,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-11-23 14:57:42,689 INFO L87 Difference]: Start difference. First operand 5066 states and 6891 transitions. Second operand 17 states. [2018-11-23 14:57:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:57:45,760 INFO L93 Difference]: Finished difference Result 11222 states and 16064 transitions. [2018-11-23 14:57:45,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 14:57:45,760 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 553 [2018-11-23 14:57:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:57:45,780 INFO L225 Difference]: With dead ends: 11222 [2018-11-23 14:57:45,780 INFO L226 Difference]: Without dead ends: 5425 [2018-11-23 14:57:45,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1166 GetRequests, 1118 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=536, Invalid=1816, Unknown=0, NotChecked=0, Total=2352 [2018-11-23 14:57:45,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5425 states. [2018-11-23 14:57:45,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5425 to 5252. [2018-11-23 14:57:45,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-11-23 14:57:45,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 6248 transitions. [2018-11-23 14:57:45,893 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 6248 transitions. Word has length 553 [2018-11-23 14:57:45,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:57:45,894 INFO L480 AbstractCegarLoop]: Abstraction has 5252 states and 6248 transitions. [2018-11-23 14:57:45,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 14:57:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 6248 transitions. [2018-11-23 14:57:45,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2018-11-23 14:57:45,901 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:57:45,902 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:57:45,902 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:57:45,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:45,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1737313647, now seen corresponding path program 2 times [2018-11-23 14:57:45,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:57:45,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:45,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:45,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:45,903 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:57:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 505 proven. 111 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2018-11-23 14:57:46,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:46,328 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:57:46,328 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 14:57:46,328 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 14:57:46,328 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:46,328 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/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 [2018-11-23 14:57:46,334 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 14:57:46,335 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 14:57:46,374 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-23 14:57:46,374 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:57:46,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:57:46,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2018-11-23 14:57:46,678 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:57:46,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2018-11-23 14:57:46,866 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:57:46,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-11-23 14:57:46,867 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:57:46,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:57:46,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:57:46,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:57:46,868 INFO L87 Difference]: Start difference. First operand 5252 states and 6248 transitions. Second operand 3 states. [2018-11-23 14:57:47,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:57:47,792 INFO L93 Difference]: Finished difference Result 12835 states and 15509 transitions. [2018-11-23 14:57:47,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:57:47,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 658 [2018-11-23 14:57:47,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:57:47,813 INFO L225 Difference]: With dead ends: 12835 [2018-11-23 14:57:47,813 INFO L226 Difference]: Without dead ends: 7955 [2018-11-23 14:57:47,824 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1321 GetRequests, 1315 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:57:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2018-11-23 14:57:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 7943. [2018-11-23 14:57:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7943 states. [2018-11-23 14:57:47,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7943 states to 7943 states and 9205 transitions. [2018-11-23 14:57:47,947 INFO L78 Accepts]: Start accepts. Automaton has 7943 states and 9205 transitions. Word has length 658 [2018-11-23 14:57:47,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:57:47,948 INFO L480 AbstractCegarLoop]: Abstraction has 7943 states and 9205 transitions. [2018-11-23 14:57:47,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:57:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7943 states and 9205 transitions. [2018-11-23 14:57:47,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2018-11-23 14:57:47,960 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:57:47,960 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:57:47,960 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:57:47,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:47,961 INFO L82 PathProgramCache]: Analyzing trace with hash -845289711, now seen corresponding path program 1 times [2018-11-23 14:57:47,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:57:47,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:47,961 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:57:47,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:47,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:57:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:48,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 505 proven. 175 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2018-11-23 14:57:48,411 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:48,411 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:57:48,412 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 723 with the following transitions: [2018-11-23 14:57:48,412 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [918], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:57:48,415 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:57:48,415 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:57:52,449 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:57:52,449 INFO L272 AbstractInterpreter]: Visited 190 different actions 757 times. Merged at 8 different actions 30 times. Widened at 1 different actions 1 times. Performed 8365 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8365 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 14:57:52,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:52,453 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:57:52,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:52,454 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:57:52,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:52,459 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:57:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:52,558 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:57:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 964 proven. 2 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2018-11-23 14:57:52,727 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:57:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 505 proven. 175 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2018-11-23 14:57:53,046 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:57:53,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-23 14:57:53,046 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:57:53,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 14:57:53,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:57:53,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:57:53,047 INFO L87 Difference]: Start difference. First operand 7943 states and 9205 transitions. Second operand 7 states. [2018-11-23 14:57:54,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:57:54,264 INFO L93 Difference]: Finished difference Result 22096 states and 29695 transitions. [2018-11-23 14:57:54,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 14:57:54,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 722 [2018-11-23 14:57:54,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:57:54,327 INFO L225 Difference]: With dead ends: 22096 [2018-11-23 14:57:54,327 INFO L226 Difference]: Without dead ends: 14525 [2018-11-23 14:57:54,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1461 GetRequests, 1447 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-11-23 14:57:54,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14525 states. [2018-11-23 14:57:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14525 to 14219. [2018-11-23 14:57:54,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14219 states. [2018-11-23 14:57:54,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14219 states to 14219 states and 16706 transitions. [2018-11-23 14:57:54,609 INFO L78 Accepts]: Start accepts. Automaton has 14219 states and 16706 transitions. Word has length 722 [2018-11-23 14:57:54,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:57:54,610 INFO L480 AbstractCegarLoop]: Abstraction has 14219 states and 16706 transitions. [2018-11-23 14:57:54,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 14:57:54,610 INFO L276 IsEmpty]: Start isEmpty. Operand 14219 states and 16706 transitions. [2018-11-23 14:57:54,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2018-11-23 14:57:54,624 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:57:54,624 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:57:54,625 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:57:54,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:54,625 INFO L82 PathProgramCache]: Analyzing trace with hash -269674458, now seen corresponding path program 1 times [2018-11-23 14:57:54,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:57:54,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:54,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:54,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:57:54,626 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:57:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 512 proven. 175 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-11-23 14:57:55,115 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:55,115 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:57:55,115 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 730 with the following transitions: [2018-11-23 14:57:55,115 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [918], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:57:55,117 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:57:55,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:57:59,179 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:57:59,179 INFO L272 AbstractInterpreter]: Visited 191 different actions 762 times. Merged at 9 different actions 31 times. Never widened. Performed 8433 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8433 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 14:57:59,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:57:59,180 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:57:59,180 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:57:59,180 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:57:59,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:57:59,188 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:57:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:57:59,274 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:57:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 978 proven. 2 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2018-11-23 14:57:59,449 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:57:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 512 proven. 175 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-11-23 14:57:59,728 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:57:59,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-23 14:57:59,728 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:57:59,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 14:57:59,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:57:59,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:57:59,730 INFO L87 Difference]: Start difference. First operand 14219 states and 16706 transitions. Second operand 7 states. [2018-11-23 14:58:01,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:58:01,050 INFO L93 Difference]: Finished difference Result 33166 states and 45268 transitions. [2018-11-23 14:58:01,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 14:58:01,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 729 [2018-11-23 14:58:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:58:01,150 INFO L225 Difference]: With dead ends: 33166 [2018-11-23 14:58:01,150 INFO L226 Difference]: Without dead ends: 19319 [2018-11-23 14:58:01,215 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1475 GetRequests, 1461 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-11-23 14:58:01,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19319 states. [2018-11-23 14:58:01,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19319 to 18927. [2018-11-23 14:58:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18927 states. [2018-11-23 14:58:01,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18927 states to 18927 states and 22717 transitions. [2018-11-23 14:58:01,546 INFO L78 Accepts]: Start accepts. Automaton has 18927 states and 22717 transitions. Word has length 729 [2018-11-23 14:58:01,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:58:01,546 INFO L480 AbstractCegarLoop]: Abstraction has 18927 states and 22717 transitions. [2018-11-23 14:58:01,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 14:58:01,546 INFO L276 IsEmpty]: Start isEmpty. Operand 18927 states and 22717 transitions. [2018-11-23 14:58:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2018-11-23 14:58:01,560 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:58:01,561 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:58:01,561 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:58:01,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:58:01,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1817067878, now seen corresponding path program 1 times [2018-11-23 14:58:01,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:58:01,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:58:01,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:58:01,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:58:01,562 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:58:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:58:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 553 proven. 897 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2018-11-23 14:58:02,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:58:02,753 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:58:02,754 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 856 with the following transitions: [2018-11-23 14:58:02,754 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [918], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 14:58:02,756 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:58:02,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:58:06,835 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:58:06,835 INFO L272 AbstractInterpreter]: Visited 191 different actions 769 times. Merged at 9 different actions 38 times. Widened at 1 different actions 2 times. Performed 8511 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8511 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 14:58:06,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:58:06,837 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:58:06,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:58:06,838 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:58:06,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:58:06,850 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:58:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:58:06,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:58:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 1741 trivial. 0 not checked. [2018-11-23 14:58:07,127 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:58:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 1741 trivial. 0 not checked. [2018-11-23 14:58:07,330 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:58:07,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 15 [2018-11-23 14:58:07,331 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:58:07,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:58:07,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:58:07,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-11-23 14:58:07,332 INFO L87 Difference]: Start difference. First operand 18927 states and 22717 transitions. Second operand 3 states. [2018-11-23 14:58:07,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:58:07,812 INFO L93 Difference]: Finished difference Result 37722 states and 45865 transitions. [2018-11-23 14:58:07,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:58:07,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 855 [2018-11-23 14:58:07,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:58:07,814 INFO L225 Difference]: With dead ends: 37722 [2018-11-23 14:58:07,814 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:58:07,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1725 GetRequests, 1711 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-11-23 14:58:07,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:58:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:58:07,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:58:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:58:07,880 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 855 [2018-11-23 14:58:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:58:07,880 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:58:07,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:58:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:58:07,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:58:07,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:58:08,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,211 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,783 WARN L180 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 478 [2018-11-23 14:58:08,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:08,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:58:09,442 WARN L180 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 454 [2018-11-23 14:58:09,906 WARN L180 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 37 [2018-11-23 14:58:11,206 WARN L180 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 467 DAG size of output: 42 [2018-11-23 14:58:12,462 WARN L180 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 448 DAG size of output: 42 [2018-11-23 14:58:12,463 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:58:12,463 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-23 14:58:12,464 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,465 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-23 14:58:12,466 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-23 14:58:12,467 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-23 14:58:12,468 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse1 (= 7 |old(~a15~0)|)) (.cse3 (= 9 |old(~a15~0)|)) (.cse2 (not (= 1 |old(~a24~0)|))) (.cse0 (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 (<= |old(~a12~0)| 11)) (or (not (= 6 |old(~a21~0)|)) .cse0 .cse1 (< 0 (+ |old(~a12~0)| 43)) .cse3) (or (= 9 |old(~a21~0)|) .cse2 .cse0))) [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-23 14:58:12,469 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-23 14:58:12,470 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-23 14:58:12,471 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-23 14:58:12,472 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-23 14:58:12,473 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,474 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-23 14:58:12,475 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 1 |old(~a24~0)|)) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (not (= ~a15~0 9))) (.cse2 (= 1 ~a24~0)) (.cse1 (not (= ~a15~0 7)))) (or (not (= 7 |old(~a21~0)|)) (and .cse0 (= 6 ~a21~0) (<= (+ ~a12~0 43) 0) .cse1) (and (< 11 ~a12~0) .cse2) (not (= 1 |old(~a24~0)|)) (and (not (= 9 ~a21~0)) .cse2) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse0 .cse2 .cse1))) [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-23 14:58:12,475 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-23 14:58:12,476 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (not (= ~a15~0 9))) (.cse2 (= 1 ~a24~0)) (.cse1 (not (= ~a15~0 7)))) (or (not (= 7 |old(~a21~0)|)) (and .cse0 (= 6 ~a21~0) (<= (+ ~a12~0 43) 0) .cse1) (and (< 11 ~a12~0) .cse2) (not (= 1 |old(~a24~0)|)) (and (not (= 9 ~a21~0)) .cse2) (not (= 8 |old(~a15~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse0 .cse2 .cse1))) [2018-11-23 14:58:12,476 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-11-23 14:58:12,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:58:12 BoogieIcfgContainer [2018-11-23 14:58:12,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:58:12,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:58:12,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:58:12,488 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:58:12,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:55:55" (3/4) ... [2018-11-23 14:58:12,491 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:58:12,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:58:12,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 14:58:12,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:58:12,508 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 14:58:12,508 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:58:12,534 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(7 == \old(a21)) || (((!(a15 == 9) && 6 == a21) && a12 + 43 <= 0) && !(a15 == 7))) || (11 < a12 && 1 == a24)) || !(1 == \old(a24))) || (!(9 == a21) && 1 == a24)) || !(8 == \old(a15))) || !(0 == \old(a12) + 49)) || ((!(a15 == 9) && 1 == a24) && !(a15 == 7)) [2018-11-23 14:58:12,603 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a13b6de3-63be-46c8-ae9e-7cc6f513b476/bin-2019/utaipan/witness.graphml [2018-11-23 14:58:12,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:58:12,604 INFO L168 Benchmark]: Toolchain (without parser) took 138987.70 ms. Allocated memory was 1.0 GB in the beginning and 4.9 GB in the end (delta: 3.9 GB). Free memory was 956.4 MB in the beginning and 2.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. [2018-11-23 14:58:12,605 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:58:12,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.67 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 913.5 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-23 14:58:12,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 913.5 MB in the beginning and 1.2 GB in the end (delta: -254.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:58:12,605 INFO L168 Benchmark]: Boogie Preprocessor took 54.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:58:12,606 INFO L168 Benchmark]: RCFGBuilder took 1097.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 131.1 MB). Peak memory consumption was 131.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:58:12,606 INFO L168 Benchmark]: TraceAbstraction took 137208.16 ms. Allocated memory was 1.2 GB in the beginning and 4.9 GB in the end (delta: 3.7 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 4.1 GB. Max. memory is 11.5 GB. [2018-11-23 14:58:12,606 INFO L168 Benchmark]: Witness Printer took 115.62 ms. Allocated memory is still 4.9 GB. Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 4.8 kB). Peak memory consumption was 4.8 kB. Max. memory is 11.5 GB. [2018-11-23 14:58:12,608 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 417.67 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 913.5 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 913.5 MB in the beginning and 1.2 GB in the end (delta: -254.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1097.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 131.1 MB). Peak memory consumption was 131.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 137208.16 ms. Allocated memory was 1.2 GB in the beginning and 4.9 GB in the end (delta: 3.7 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 4.1 GB. Max. memory is 11.5 GB. * Witness Printer took 115.62 ms. Allocated memory is still 4.9 GB. Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 4.8 kB). Peak memory consumption was 4.8 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((!(7 == \old(a21)) || (((!(a15 == 9) && 6 == a21) && a12 + 43 <= 0) && !(a15 == 7))) || (11 < a12 && 1 == a24)) || !(1 == \old(a24))) || (!(9 == a21) && 1 == a24)) || !(8 == \old(a15))) || !(0 == \old(a12) + 49)) || ((!(a15 == 9) && 1 == a24) && !(a15 == 7)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 137.1s OverallTime, 13 OverallIterations, 7 TraceHistogramMax, 76.6s AutomataDifference, 0.0s DeadEndRemovalTime, 4.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 2348 SDtfs, 19617 SDslu, 2423 SDs, 0 SdLazy, 22861 SolverSat, 4576 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.8s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 9909 GetRequests, 9687 SyntacticMatches, 7 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18927occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 38.7s AbstIntTime, 9 AbstIntIterations, 4 AbstIntStrong, 0.997273938029088 AbsIntWeakeningRatio, 0.08758169934640522 AbsIntAvgWeakeningVarsNumRemoved, 16.15032679738562 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 1000 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 361 PreInvPairs, 563 NumberOfFragments, 287 HoareAnnotationTreeSize, 361 FomulaSimplifications, 142717 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 66411 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 9962 NumberOfCodeBlocks, 9454 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 14002 ConstructedInterpolants, 35 QuantifiedInterpolants, 34351084 SizeOfPredicates, 20 NumberOfNonLiveVariables, 5194 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 21965/25337 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...