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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:15:21,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:15:21,935 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:15:21,951 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:15:21,952 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:15:21,953 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:15:21,954 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:15:21,956 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:15:21,958 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:15:21,959 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:15:21,960 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:15:21,960 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:15:21,961 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:15:21,962 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:15:21,963 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:15:21,964 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:15:21,964 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:15:21,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:15:21,968 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:15:21,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:15:21,970 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:15:21,971 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:15:21,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 04:15:21,981 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:15:21,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:15:21,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:15:21,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:15:21,984 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 04:15:22,009 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:15:22,009 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:15:22,010 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:15:22,011 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:15:22,011 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:15:22,011 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:15:22,011 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:15:22,011 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:15:22,012 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:15:22,012 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:15:22,012 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:15:22,012 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:15:22,013 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:15:22,013 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:15:22,013 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:15:22,013 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:15:22,014 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:15:22,014 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:15:22,014 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:15:22,014 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:15:22,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:15:22,015 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:15:22,015 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:15:22,015 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:15:22,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:15:22,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:15:22,016 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:15:22,016 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:15:22,016 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:15:22,016 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:15:22,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:15:22,017 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:15:22,017 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:15:22,017 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:15:22,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:15:22,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:15:22,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:15:22,099 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:15:22,100 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:15:22,100 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c [2018-11-07 04:15:22,171 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d2c0437/f5c27e26a99447cbbdad130335d35f39/FLAGbac2e6094 [2018-11-07 04:15:23,054 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:15:23,055 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c [2018-11-07 04:15:23,098 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d2c0437/f5c27e26a99447cbbdad130335d35f39/FLAGbac2e6094 [2018-11-07 04:15:23,115 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d2c0437/f5c27e26a99447cbbdad130335d35f39 [2018-11-07 04:15:23,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:15:23,128 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:15:23,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:15:23,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:15:23,134 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:15:23,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:15:23" (1/1) ... [2018-11-07 04:15:23,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab8b858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:23, skipping insertion in model container [2018-11-07 04:15:23,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:15:23" (1/1) ... [2018-11-07 04:15:23,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:15:23,411 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:15:25,357 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:15:25,362 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:15:26,475 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:15:26,531 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:15:26,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26 WrapperNode [2018-11-07 04:15:26,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:15:26,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:15:26,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:15:26,533 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:15:26,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:15:27,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:15:27,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:15:27,048 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:15:27,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (1/1) ... [2018-11-07 04:15:27,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:15:27,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:15:27,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:15:27,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:15:27,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (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 04:15:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:15:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:15:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:15:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 04:15:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 04:15:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 04:15:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 04:15:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 04:15:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 04:15:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 04:15:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 04:15:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:15:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:15:27,522 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:15:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:15:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:15:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:15:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:15:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:15:43,169 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:15:43,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:15:43 BoogieIcfgContainer [2018-11-07 04:15:43,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:15:43,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:15:43,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:15:43,174 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:15:43,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:15:23" (1/3) ... [2018-11-07 04:15:43,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ccd168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:15:43, skipping insertion in model container [2018-11-07 04:15:43,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:26" (2/3) ... [2018-11-07 04:15:43,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ccd168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:15:43, skipping insertion in model container [2018-11-07 04:15:43,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:15:43" (3/3) ... [2018-11-07 04:15:43,178 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label24_true-unreach-call.c [2018-11-07 04:15:43,188 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:15:43,199 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:15:43,217 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:15:43,281 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:15:43,282 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:15:43,282 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:15:43,282 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:15:43,282 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:15:43,282 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:15:43,283 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:15:43,283 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:15:43,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 04:15:43,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-07 04:15:43,360 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:15:43,361 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] [2018-11-07 04:15:43,363 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:15:43,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:15:43,368 INFO L82 PathProgramCache]: Analyzing trace with hash -667594212, now seen corresponding path program 1 times [2018-11-07 04:15:43,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:15:43,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:15:43,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:15:43,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:15:43,423 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:15:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:15:43,881 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:15:44,009 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 04:15:44,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:15:44,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 04:15:44,012 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:15:44,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 04:15:44,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 04:15:44,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:15:44,043 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-07 04:15:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:15:57,708 INFO L93 Difference]: Finished difference Result 5049 states and 9513 transitions. [2018-11-07 04:15:57,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 04:15:57,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-11-07 04:15:57,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:15:57,758 INFO L225 Difference]: With dead ends: 5049 [2018-11-07 04:15:57,758 INFO L226 Difference]: Without dead ends: 3269 [2018-11-07 04:15:57,771 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:15:57,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2018-11-07 04:15:57,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3218. [2018-11-07 04:15:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3218 states. [2018-11-07 04:15:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 5997 transitions. [2018-11-07 04:15:57,963 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 5997 transitions. Word has length 52 [2018-11-07 04:15:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:15:57,964 INFO L480 AbstractCegarLoop]: Abstraction has 3218 states and 5997 transitions. [2018-11-07 04:15:57,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 04:15:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 5997 transitions. [2018-11-07 04:15:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-07 04:15:57,976 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:15:57,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:57,977 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:15:57,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:15:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1067454159, now seen corresponding path program 1 times [2018-11-07 04:15:57,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:15:57,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:15:57,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:15:57,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:15:57,981 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:15:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:15:58,353 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:15:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:15:58,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:15:58,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:15:58,732 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:15:58,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:15:58,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:15:58,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:15:58,736 INFO L87 Difference]: Start difference. First operand 3218 states and 5997 transitions. Second operand 6 states. [2018-11-07 04:16:21,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:16:21,165 INFO L93 Difference]: Finished difference Result 12137 states and 23144 transitions. [2018-11-07 04:16:21,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:16:21,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-07 04:16:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:16:21,228 INFO L225 Difference]: With dead ends: 12137 [2018-11-07 04:16:21,228 INFO L226 Difference]: Without dead ends: 8925 [2018-11-07 04:16:21,243 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 04:16:21,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8925 states. [2018-11-07 04:16:21,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8862. [2018-11-07 04:16:21,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8862 states. [2018-11-07 04:16:21,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8862 states to 8862 states and 14404 transitions. [2018-11-07 04:16:21,482 INFO L78 Accepts]: Start accepts. Automaton has 8862 states and 14404 transitions. Word has length 124 [2018-11-07 04:16:21,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:16:21,483 INFO L480 AbstractCegarLoop]: Abstraction has 8862 states and 14404 transitions. [2018-11-07 04:16:21,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:16:21,483 INFO L276 IsEmpty]: Start isEmpty. Operand 8862 states and 14404 transitions. [2018-11-07 04:16:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-07 04:16:21,489 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:16:21,489 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:21,489 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:16:21,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:16:21,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1956611073, now seen corresponding path program 1 times [2018-11-07 04:16:21,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:16:21,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:16:21,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:16:21,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:16:21,491 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:16:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:16:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:16:21,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:16:21,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:16:21,845 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:16:21,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:16:21,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:16:21,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:16:21,847 INFO L87 Difference]: Start difference. First operand 8862 states and 14404 transitions. Second operand 5 states. [2018-11-07 04:16:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:16:45,366 INFO L93 Difference]: Finished difference Result 32200 states and 52795 transitions. [2018-11-07 04:16:45,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 04:16:45,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-11-07 04:16:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:16:45,449 INFO L225 Difference]: With dead ends: 32200 [2018-11-07 04:16:45,449 INFO L226 Difference]: Without dead ends: 23344 [2018-11-07 04:16:45,487 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:16:45,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23344 states. [2018-11-07 04:16:45,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23344 to 23156. [2018-11-07 04:16:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23156 states. [2018-11-07 04:16:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23156 states to 23156 states and 32102 transitions. [2018-11-07 04:16:46,022 INFO L78 Accepts]: Start accepts. Automaton has 23156 states and 32102 transitions. Word has length 126 [2018-11-07 04:16:46,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:16:46,023 INFO L480 AbstractCegarLoop]: Abstraction has 23156 states and 32102 transitions. [2018-11-07 04:16:46,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:16:46,023 INFO L276 IsEmpty]: Start isEmpty. Operand 23156 states and 32102 transitions. [2018-11-07 04:16:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-07 04:16:46,028 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:16:46,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:46,028 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:16:46,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:16:46,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1540904621, now seen corresponding path program 1 times [2018-11-07 04:16:46,029 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:16:46,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:16:46,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:16:46,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:16:46,031 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:16:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:16:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:16:46,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:16:46,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:16:46,355 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:16:46,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:16:46,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:16:46,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:16:46,357 INFO L87 Difference]: Start difference. First operand 23156 states and 32102 transitions. Second operand 5 states. [2018-11-07 04:17:03,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:17:03,535 INFO L93 Difference]: Finished difference Result 70575 states and 101727 transitions. [2018-11-07 04:17:03,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:17:03,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-11-07 04:17:03,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:17:03,710 INFO L225 Difference]: With dead ends: 70575 [2018-11-07 04:17:03,710 INFO L226 Difference]: Without dead ends: 47425 [2018-11-07 04:17:03,775 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-07 04:17:03,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47425 states. [2018-11-07 04:17:04,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47425 to 46798. [2018-11-07 04:17:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46798 states. [2018-11-07 04:17:04,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46798 states to 46798 states and 61086 transitions. [2018-11-07 04:17:04,987 INFO L78 Accepts]: Start accepts. Automaton has 46798 states and 61086 transitions. Word has length 157 [2018-11-07 04:17:04,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:17:04,987 INFO L480 AbstractCegarLoop]: Abstraction has 46798 states and 61086 transitions. [2018-11-07 04:17:04,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:17:04,988 INFO L276 IsEmpty]: Start isEmpty. Operand 46798 states and 61086 transitions. [2018-11-07 04:17:04,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-11-07 04:17:04,997 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:17:04,997 INFO L375 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, 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:17:04,998 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:17:04,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:17:04,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1193629279, now seen corresponding path program 1 times [2018-11-07 04:17:04,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:17:04,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:17:04,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:17:04,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:17:04,999 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:17:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:17:05,305 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:17:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 04:17:05,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:17:05,682 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:17:05,683 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-11-07 04:17:05,694 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], [5542], [5544], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5734], [5739], [5741], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 04:17:05,773 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:17:05,774 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:17:08,571 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:17:08,572 INFO L272 AbstractInterpreter]: Visited 84 different actions 84 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 04:17:08,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:17:08,597 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:17:10,646 INFO L227 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 75.76% of their original sizes. [2018-11-07 04:17:10,647 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:17:11,008 INFO L415 sIntCurrentIteration]: We unified 204 AI predicates to 204 [2018-11-07 04:17:11,008 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:17:11,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:17:11,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 04:17:11,010 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:17:11,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 04:17:11,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 04:17:11,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 04:17:11,011 INFO L87 Difference]: Start difference. First operand 46798 states and 61086 transitions. Second operand 7 states. [2018-11-07 04:17:15,069 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 04:18:49,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:18:49,633 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:18:49,638 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:18:49,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:18:49 BoogieIcfgContainer [2018-11-07 04:18:49,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:18:49,639 INFO L168 Benchmark]: Toolchain (without parser) took 206512.14 ms. Allocated memory was 1.6 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 571.9 MB. Max. memory is 7.1 GB. [2018-11-07 04:18:49,641 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 04:18:49,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3402.45 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. [2018-11-07 04:18:49,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 514.80 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 870.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. [2018-11-07 04:18:49,644 INFO L168 Benchmark]: Boogie Preprocessor took 393.21 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2018-11-07 04:18:49,645 INFO L168 Benchmark]: RCFGBuilder took 15728.61 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 142.6 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 551.9 MB). Peak memory consumption was 694.5 MB. Max. memory is 7.1 GB. [2018-11-07 04:18:49,646 INFO L168 Benchmark]: TraceAbstraction took 186468.12 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.5 GB in the end (delta: -1.8 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 04:18:49,652 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3402.45 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 514.80 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 870.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 393.21 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15728.61 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 142.6 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 551.9 MB). Peak memory consumption was 694.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 186468.12 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 3.5 GB in the end (delta: -1.8 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 151]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 151). Cancelled while BasicCegarLoop was constructing difference of abstraction (46798states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (41563 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 186.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 175.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2895 SDtfs, 26145 SDslu, 2715 SDs, 0 SdLazy, 39072 SolverSat, 9347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 238 GetRequests, 210 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46798occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9954449472096529 AbsIntWeakeningRatio, 0.13725490196078433 AbsIntAvgWeakeningVarsNumRemoved, 1031.2401960784314 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 929 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 257708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 230/297 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown