java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:46:16,061 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:46:16,063 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:46:16,075 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:46:16,075 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:46:16,076 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:46:16,077 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:46:16,079 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:46:16,081 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:46:16,082 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:46:16,083 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:46:16,083 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:46:16,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:46:16,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:46:16,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:46:16,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:46:16,087 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:46:16,089 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:46:16,092 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:46:16,093 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:46:16,094 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:46:16,096 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:46:16,098 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:46:16,099 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:46:16,099 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:46:16,100 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:46:16,101 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:46:16,102 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:46:16,103 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:46:16,104 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:46:16,104 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:46:16,105 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:46:16,105 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:46:16,106 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:46:16,107 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:46:16,107 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:46:16,108 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:46:16,130 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:46:16,131 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:46:16,132 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:46:16,132 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:46:16,132 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:46:16,133 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:46:16,133 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:46:16,133 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:46:16,133 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:46:16,134 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:46:16,134 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:46:16,134 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:46:16,134 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:46:16,134 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:46:16,135 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:46:16,135 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:46:16,135 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:46:16,137 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:46:16,137 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:46:16,138 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:46:16,138 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:46:16,138 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:46:16,138 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:46:16,139 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:46:16,139 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:46:16,139 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:46:16,139 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:46:16,139 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:46:16,140 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:46:16,140 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:46:16,140 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:46:16,140 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:46:16,140 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:46:16,140 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:46:16,141 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:46:16,141 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:46:16,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:46:16,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:46:16,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:46:16,226 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:46:16,227 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:46:16,227 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c [2018-11-07 09:46:16,293 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b855136/18a11f7241ac4dadb89d74053f192b01/FLAGa3efa4ea4 [2018-11-07 09:46:17,210 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:46:17,211 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c [2018-11-07 09:46:17,263 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b855136/18a11f7241ac4dadb89d74053f192b01/FLAGa3efa4ea4 [2018-11-07 09:46:17,278 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b855136/18a11f7241ac4dadb89d74053f192b01 [2018-11-07 09:46:17,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:46:17,292 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:46:17,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:46:17,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:46:17,297 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:46:17,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:46:17" (1/1) ... [2018-11-07 09:46:17,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e529910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:17, skipping insertion in model container [2018-11-07 09:46:17,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:46:17" (1/1) ... [2018-11-07 09:46:17,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:46:17,569 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:46:19,596 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:46:19,600 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:46:20,713 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:46:20,785 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:46:20,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20 WrapperNode [2018-11-07 09:46:20,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:46:20,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:46:20,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:46:20,787 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:46:20,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:46:21,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:46:21,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:46:21,321 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:46:21,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... [2018-11-07 09:46:21,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:46:21,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:46:21,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:46:21,743 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:46:21,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-07 09:46:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:46:21,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:46:21,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:46:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 09:46:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 09:46:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 09:46:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 09:46:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 09:46:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 09:46:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 09:46:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 09:46:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:46:21,818 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:46:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:46:21,820 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:46:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:46:21,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:46:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:46:21,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:46:36,230 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:46:36,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:46:36 BoogieIcfgContainer [2018-11-07 09:46:36,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:46:36,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:46:36,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:46:36,236 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:46:36,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:46:17" (1/3) ... [2018-11-07 09:46:36,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d92eba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:46:36, skipping insertion in model container [2018-11-07 09:46:36,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:46:20" (2/3) ... [2018-11-07 09:46:36,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d92eba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:46:36, skipping insertion in model container [2018-11-07 09:46:36,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:46:36" (3/3) ... [2018-11-07 09:46:36,240 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label15_true-unreach-call.c [2018-11-07 09:46:36,250 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:46:36,261 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:46:36,279 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:46:36,334 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:46:36,335 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:46:36,335 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:46:36,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:46:36,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:46:36,335 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:46:36,336 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:46:36,336 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:46:36,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 09:46:36,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-07 09:46:36,399 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:46:36,400 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:46:36,402 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:46:36,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:46:36,409 INFO L82 PathProgramCache]: Analyzing trace with hash -145550206, now seen corresponding path program 1 times [2018-11-07 09:46:36,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:46:36,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:46:36,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:46:36,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:46:36,466 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:46:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:46:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:46:37,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:46:37,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:46:37,048 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:46:37,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:46:37,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:46:37,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:46:37,074 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-11-07 09:46:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:46:58,441 INFO L93 Difference]: Finished difference Result 6513 states and 12383 transitions. [2018-11-07 09:46:58,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:46:58,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2018-11-07 09:46:58,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:46:58,511 INFO L225 Difference]: With dead ends: 6513 [2018-11-07 09:46:58,511 INFO L226 Difference]: Without dead ends: 4729 [2018-11-07 09:46:58,524 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:46:58,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2018-11-07 09:46:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4693. [2018-11-07 09:46:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4693 states. [2018-11-07 09:46:58,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 7735 transitions. [2018-11-07 09:46:58,785 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 7735 transitions. Word has length 65 [2018-11-07 09:46:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:46:58,786 INFO L480 AbstractCegarLoop]: Abstraction has 4693 states and 7735 transitions. [2018-11-07 09:46:58,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:46:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 7735 transitions. [2018-11-07 09:46:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-07 09:46:58,797 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:46:58,797 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:46:58,797 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:46:58,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:46:58,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1956104820, now seen corresponding path program 1 times [2018-11-07 09:46:58,798 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:46:58,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:46:58,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:46:58,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:46:58,800 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:46:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:46:59,153 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:46:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:46:59,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:46:59,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:46:59,530 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:46:59,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:46:59,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:46:59,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:46:59,534 INFO L87 Difference]: Start difference. First operand 4693 states and 7735 transitions. Second operand 6 states. [2018-11-07 09:47:23,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:47:23,021 INFO L93 Difference]: Finished difference Result 17886 states and 30173 transitions. [2018-11-07 09:47:23,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:47:23,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-11-07 09:47:23,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:47:23,079 INFO L225 Difference]: With dead ends: 17886 [2018-11-07 09:47:23,080 INFO L226 Difference]: Without dead ends: 13199 [2018-11-07 09:47:23,102 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:47:23,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13199 states. [2018-11-07 09:47:23,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13199 to 13130. [2018-11-07 09:47:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13130 states. [2018-11-07 09:47:23,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13130 states to 13130 states and 19368 transitions. [2018-11-07 09:47:23,459 INFO L78 Accepts]: Start accepts. Automaton has 13130 states and 19368 transitions. Word has length 137 [2018-11-07 09:47:23,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:47:23,460 INFO L480 AbstractCegarLoop]: Abstraction has 13130 states and 19368 transitions. [2018-11-07 09:47:23,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:47:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 13130 states and 19368 transitions. [2018-11-07 09:47:23,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-07 09:47:23,469 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:47:23,469 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:47:23,470 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:47:23,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:47:23,470 INFO L82 PathProgramCache]: Analyzing trace with hash -749519922, now seen corresponding path program 1 times [2018-11-07 09:47:23,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:47:23,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:23,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:47:23,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:23,474 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:47:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:47:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:47:23,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:47:23,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:47:23,976 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:47:23,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:47:23,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:47:23,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:47:23,979 INFO L87 Difference]: Start difference. First operand 13130 states and 19368 transitions. Second operand 6 states. [2018-11-07 09:47:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:47:40,632 INFO L93 Difference]: Finished difference Result 39915 states and 60263 transitions. [2018-11-07 09:47:40,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 09:47:40,639 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-11-07 09:47:40,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:47:40,724 INFO L225 Difference]: With dead ends: 39915 [2018-11-07 09:47:40,724 INFO L226 Difference]: Without dead ends: 26791 [2018-11-07 09:47:40,763 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:47:40,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26791 states. [2018-11-07 09:47:41,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26791 to 26535. [2018-11-07 09:47:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26535 states. [2018-11-07 09:47:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26535 states to 26535 states and 38629 transitions. [2018-11-07 09:47:41,333 INFO L78 Accepts]: Start accepts. Automaton has 26535 states and 38629 transitions. Word has length 147 [2018-11-07 09:47:41,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:47:41,333 INFO L480 AbstractCegarLoop]: Abstraction has 26535 states and 38629 transitions. [2018-11-07 09:47:41,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:47:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 26535 states and 38629 transitions. [2018-11-07 09:47:41,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-11-07 09:47:41,339 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:47:41,339 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:47:41,339 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:47:41,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:47:41,343 INFO L82 PathProgramCache]: Analyzing trace with hash -177824352, now seen corresponding path program 1 times [2018-11-07 09:47:41,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:47:41,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:41,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:47:41,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:47:41,345 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:47:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:47:41,700 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:47:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:47:42,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:47:42,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:47:42,115 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:47:42,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:47:42,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:47:42,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:47:42,119 INFO L87 Difference]: Start difference. First operand 26535 states and 38629 transitions. Second operand 6 states. [2018-11-07 09:48:00,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:48:00,258 INFO L93 Difference]: Finished difference Result 70533 states and 106687 transitions. [2018-11-07 09:48:00,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:48:00,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2018-11-07 09:48:00,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:48:00,378 INFO L225 Difference]: With dead ends: 70533 [2018-11-07 09:48:00,379 INFO L226 Difference]: Without dead ends: 44004 [2018-11-07 09:48:00,441 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:48:00,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44004 states. [2018-11-07 09:48:01,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44004 to 43853. [2018-11-07 09:48:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43853 states. [2018-11-07 09:48:01,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43853 states to 43853 states and 61086 transitions. [2018-11-07 09:48:01,293 INFO L78 Accepts]: Start accepts. Automaton has 43853 states and 61086 transitions. Word has length 180 [2018-11-07 09:48:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:48:01,294 INFO L480 AbstractCegarLoop]: Abstraction has 43853 states and 61086 transitions. [2018-11-07 09:48:01,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:48:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 43853 states and 61086 transitions. [2018-11-07 09:48:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-11-07 09:48:01,305 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:48:01,305 INFO L375 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:48:01,306 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:48:01,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:48:01,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1490211056, now seen corresponding path program 1 times [2018-11-07 09:48:01,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:48:01,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:48:01,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:48:01,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:48:01,308 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:48:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:48:01,579 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:48:01,994 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 174 proven. 134 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-07 09:48:01,995 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:48:01,995 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:48:01,996 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 291 with the following transitions: [2018-11-07 09:48:01,998 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5634], [5642], [5646], [5648], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5749], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 09:48:02,045 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:48:02,046 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:48:02,444 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:48:02,447 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 09:48:02,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:48:02,496 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:48:03,186 INFO L227 lantSequenceWeakener]: Weakened 276 states. On average, predicates are now at 75.71% of their original sizes. [2018-11-07 09:48:03,186 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:48:03,461 INFO L415 sIntCurrentIteration]: We unified 289 AI predicates to 289 [2018-11-07 09:48:03,461 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:48:03,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:48:03,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 09:48:03,463 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:48:03,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:48:03,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:48:03,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:48:03,464 INFO L87 Difference]: Start difference. First operand 43853 states and 61086 transitions. Second operand 6 states. Received shutdown request... [2018-11-07 09:50:08,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:50:08,429 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:50:08,436 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:50:08,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:50:08 BoogieIcfgContainer [2018-11-07 09:50:08,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:50:08,437 INFO L168 Benchmark]: Toolchain (without parser) took 231145.82 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 639.4 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:08,438 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 09:50:08,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3493.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 995.1 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:08,440 INFO L168 Benchmark]: Boogie Procedure Inliner took 533.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 846.7 MB). Free memory was 995.1 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:08,441 INFO L168 Benchmark]: Boogie Preprocessor took 422.11 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:08,442 INFO L168 Benchmark]: RCFGBuilder took 14488.49 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 155.2 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 528.3 MB). Peak memory consumption was 683.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:50:08,443 INFO L168 Benchmark]: TraceAbstraction took 212203.93 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.4 GB in the end (delta: -1.7 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 09:50:08,448 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3493.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 995.1 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 533.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 846.7 MB). Free memory was 995.1 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 422.11 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14488.49 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 155.2 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 528.3 MB). Peak memory consumption was 683.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212203.93 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.4 GB in the end (delta: -1.7 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (43853states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (14353 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 212.1s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 205.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3370 SDtfs, 27662 SDslu, 3234 SDs, 0 SdLazy, 42741 SolverSat, 9696 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 171.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 327 GetRequests, 296 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43853occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9977741154587852 AbsIntWeakeningRatio, 0.11764705882352941 AbsIntAvgWeakeningVarsNumRemoved, 17.231833910034602 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 512 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 505879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 428/562 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown