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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:08:38,965 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:08:38,969 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:08:38,988 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:08:38,988 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:08:38,990 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:08:38,991 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:08:38,994 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:08:38,996 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:08:38,999 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:08:39,000 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:08:39,000 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:08:39,001 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:08:39,004 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:08:39,008 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:08:39,009 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:08:39,009 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:08:39,018 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:08:39,020 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:08:39,025 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:08:39,026 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:08:39,031 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:08:39,033 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:08:39,033 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:08:39,033 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:08:39,034 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:08:39,039 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:08:39,041 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:08:39,042 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:08:39,045 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:08:39,046 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:08:39,046 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 21:08:39,047 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:08:39,048 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:08:39,049 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:08:39,051 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:08:39,051 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 21:08:39,080 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:08:39,080 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:08:39,081 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:08:39,081 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:08:39,081 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:08:39,082 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:08:39,083 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:08:39,083 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:08:39,083 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:08:39,083 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:08:39,083 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:08:39,084 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:08:39,084 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:08:39,085 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:08:39,085 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:08:39,085 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:08:39,086 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:08:39,086 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:08:39,086 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:08:39,086 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:08:39,086 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:08:39,087 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:08:39,087 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:08:39,087 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:08:39,087 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:08:39,087 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:08:39,089 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:08:39,089 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:08:39,090 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:08:39,090 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:08:39,090 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:08:39,090 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:08:39,090 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:08:39,091 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:08:39,091 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:08:39,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:08:39,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:08:39,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:08:39,184 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:08:39,185 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:08:39,185 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label04_true-unreach-call.c [2018-11-07 21:08:39,253 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1c26172a/1f47700b92c34959880098333738bd2f/FLAG4bb71b7d6 [2018-11-07 21:08:40,060 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:08:40,061 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label04_true-unreach-call.c [2018-11-07 21:08:40,091 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1c26172a/1f47700b92c34959880098333738bd2f/FLAG4bb71b7d6 [2018-11-07 21:08:40,110 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1c26172a/1f47700b92c34959880098333738bd2f [2018-11-07 21:08:40,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:08:40,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:08:40,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:08:40,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:08:40,134 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:08:40,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:08:40" (1/1) ... [2018-11-07 21:08:40,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9f79ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:40, skipping insertion in model container [2018-11-07 21:08:40,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:08:40" (1/1) ... [2018-11-07 21:08:40,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:08:40,304 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:08:41,508 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:08:41,515 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:08:41,944 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:08:41,973 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:08:41,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41 WrapperNode [2018-11-07 21:08:41,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:08:41,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:08:41,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:08:41,976 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:08:41,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:08:42,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:08:42,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:08:42,317 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:08:42,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (1/1) ... [2018-11-07 21:08:42,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:08:42,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:08:42,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:08:42,560 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:08:42,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (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 21:08:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:08:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:08:42,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:08:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 21:08:42,635 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 21:08:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:08:42,635 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:08:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:08:42,636 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:08:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:08:42,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:08:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:08:42,637 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:08:49,849 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:08:49,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:08:49 BoogieIcfgContainer [2018-11-07 21:08:49,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:08:49,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:08:49,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:08:49,855 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:08:49,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:08:40" (1/3) ... [2018-11-07 21:08:49,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9d2b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:08:49, skipping insertion in model container [2018-11-07 21:08:49,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:41" (2/3) ... [2018-11-07 21:08:49,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9d2b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:08:49, skipping insertion in model container [2018-11-07 21:08:49,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:08:49" (3/3) ... [2018-11-07 21:08:49,859 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label04_true-unreach-call.c [2018-11-07 21:08:49,869 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:08:49,879 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:08:49,896 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:08:49,951 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:08:49,951 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:08:49,952 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:08:49,952 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:08:49,952 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:08:49,952 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:08:49,952 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:08:49,952 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:08:50,003 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 21:08:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-07 21:08:50,015 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:08:50,017 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] [2018-11-07 21:08:50,020 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:08:50,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:08:50,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1330496791, now seen corresponding path program 1 times [2018-11-07 21:08:50,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:08:50,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:08:50,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:08:50,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:08:50,082 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:08:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:08:50,562 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 21:08:50,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:08:50,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 21:08:50,566 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:08:50,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 21:08:50,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 21:08:50,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:08:50,595 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 21:08:56,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:08:56,577 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 21:08:56,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 21:08:56,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-11-07 21:08:56,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:08:56,611 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 21:08:56,611 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 21:08:56,623 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:08:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 21:08:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 21:08:56,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 21:08:56,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-11-07 21:08:56,780 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 59 [2018-11-07 21:08:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:08:56,781 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-11-07 21:08:56,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 21:08:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-11-07 21:08:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-07 21:08:56,795 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:08:56,797 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, 1, 1, 1, 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 21:08:56,797 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:08:56,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:08:56,798 INFO L82 PathProgramCache]: Analyzing trace with hash -360553496, now seen corresponding path program 1 times [2018-11-07 21:08:56,798 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:08:56,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:08:56,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:08:56,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:08:56,800 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:08:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:08:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:08:57,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:08:57,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:08:57,050 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:08:57,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:08:57,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:08:57,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:08:57,053 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-11-07 21:09:04,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:09:04,965 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-11-07 21:09:04,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:09:04,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-11-07 21:09:04,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:09:04,983 INFO L225 Difference]: With dead ends: 4419 [2018-11-07 21:09:04,983 INFO L226 Difference]: Without dead ends: 2951 [2018-11-07 21:09:04,988 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:09:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-11-07 21:09:05,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-11-07 21:09:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-11-07 21:09:05,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-11-07 21:09:05,071 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 129 [2018-11-07 21:09:05,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:09:05,071 INFO L480 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-11-07 21:09:05,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:09:05,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-11-07 21:09:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-07 21:09:05,079 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:09:05,079 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, 1, 1, 1, 1, 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 21:09:05,080 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:09:05,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:09:05,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1538599181, now seen corresponding path program 1 times [2018-11-07 21:09:05,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:09:05,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:09:05,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:09:05,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:09:05,086 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:09:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:09:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:09:05,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:09:05,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:09:05,254 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:09:05,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:09:05,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:09:05,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:09:05,256 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-11-07 21:09:10,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:09:10,661 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-11-07 21:09:10,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:09:10,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-11-07 21:09:10,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:09:10,683 INFO L225 Difference]: With dead ends: 7345 [2018-11-07 21:09:10,683 INFO L226 Difference]: Without dead ends: 4426 [2018-11-07 21:09:10,692 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:09:10,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-11-07 21:09:10,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-11-07 21:09:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-11-07 21:09:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-11-07 21:09:10,821 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 130 [2018-11-07 21:09:10,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:09:10,822 INFO L480 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-11-07 21:09:10,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:09:10,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-11-07 21:09:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-07 21:09:10,827 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:09:10,828 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, 1, 1, 1, 1, 1, 1, 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 21:09:10,828 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:09:10,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:09:10,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1623571697, now seen corresponding path program 1 times [2018-11-07 21:09:10,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:09:10,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:09:10,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:09:10,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:09:10,832 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:09:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:09:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:09:11,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:09:11,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:09:11,141 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:09:11,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:09:11,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:09:11,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:09:11,143 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-11-07 21:09:19,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:09:19,252 INFO L93 Difference]: Finished difference Result 14803 states and 21960 transitions. [2018-11-07 21:09:19,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 21:09:19,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-11-07 21:09:19,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:09:19,295 INFO L225 Difference]: With dead ends: 14803 [2018-11-07 21:09:19,296 INFO L226 Difference]: Without dead ends: 10418 [2018-11-07 21:09:19,318 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:09:19,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10418 states. [2018-11-07 21:09:19,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10418 to 10271. [2018-11-07 21:09:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10271 states. [2018-11-07 21:09:19,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10271 states to 10271 states and 13608 transitions. [2018-11-07 21:09:19,556 INFO L78 Accepts]: Start accepts. Automaton has 10271 states and 13608 transitions. Word has length 132 [2018-11-07 21:09:19,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:09:19,556 INFO L480 AbstractCegarLoop]: Abstraction has 10271 states and 13608 transitions. [2018-11-07 21:09:19,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:09:19,557 INFO L276 IsEmpty]: Start isEmpty. Operand 10271 states and 13608 transitions. [2018-11-07 21:09:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-07 21:09:19,561 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:09:19,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:19,562 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:09:19,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:09:19,562 INFO L82 PathProgramCache]: Analyzing trace with hash 443372768, now seen corresponding path program 1 times [2018-11-07 21:09:19,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:09:19,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:09:19,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:09:19,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:09:19,566 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:09:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:09:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:09:19,873 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:09:19,874 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:09:19,875 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-11-07 21:09:19,877 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1995], [1997], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2228], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:09:19,923 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:09:19,924 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:09:20,389 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:09:20,391 INFO L272 AbstractInterpreter]: Visited 102 different actions 102 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 21:09:20,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:09:20,414 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:09:20,902 INFO L227 lantSequenceWeakener]: Weakened 151 states. On average, predicates are now at 78.45% of their original sizes. [2018-11-07 21:09:20,902 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:09:21,018 INFO L415 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2018-11-07 21:09:21,018 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:09:21,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:09:21,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-11-07 21:09:21,019 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:09:21,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 21:09:21,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 21:09:21,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 21:09:21,021 INFO L87 Difference]: Start difference. First operand 10271 states and 13608 transitions. Second operand 7 states. [2018-11-07 21:09:30,216 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:10:01,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:10:01,081 INFO L93 Difference]: Finished difference Result 21241 states and 27986 transitions. [2018-11-07 21:10:01,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:10:01,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2018-11-07 21:10:01,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:10:01,118 INFO L225 Difference]: With dead ends: 21241 [2018-11-07 21:10:01,119 INFO L226 Difference]: Without dead ends: 10976 [2018-11-07 21:10:01,143 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:10:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10976 states. [2018-11-07 21:10:01,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10976 to 10974. [2018-11-07 21:10:01,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10974 states. [2018-11-07 21:10:01,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10974 states to 10974 states and 14323 transitions. [2018-11-07 21:10:01,360 INFO L78 Accepts]: Start accepts. Automaton has 10974 states and 14323 transitions. Word has length 157 [2018-11-07 21:10:01,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:10:01,361 INFO L480 AbstractCegarLoop]: Abstraction has 10974 states and 14323 transitions. [2018-11-07 21:10:01,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 21:10:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 10974 states and 14323 transitions. [2018-11-07 21:10:01,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-11-07 21:10:01,368 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:10:01,368 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:01,369 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:10:01,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:10:01,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1601821438, now seen corresponding path program 1 times [2018-11-07 21:10:01,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:10:01,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:10:01,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:10:01,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:10:01,371 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:10:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:10:02,047 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 21:10:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 158 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:10:03,067 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:10:03,067 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:10:03,067 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 345 with the following transitions: [2018-11-07 21:10:03,068 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1995], [1997], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2228], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:10:03,076 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:10:03,076 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:10:03,750 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:10:03,751 INFO L272 AbstractInterpreter]: Visited 195 different actions 386 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:10:03,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:10:03,791 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:10:04,550 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 78.21% of their original sizes. [2018-11-07 21:10:04,550 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:10:06,061 INFO L415 sIntCurrentIteration]: We unified 343 AI predicates to 343 [2018-11-07 21:10:06,062 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:10:06,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:10:06,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [11] total 25 [2018-11-07 21:10:06,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:10:06,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 21:10:06,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 21:10:06,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-11-07 21:10:06,064 INFO L87 Difference]: Start difference. First operand 10974 states and 14323 transitions. Second operand 16 states. [2018-11-07 21:10:28,629 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:10:53,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:10:53,203 INFO L93 Difference]: Finished difference Result 22783 states and 29626 transitions. [2018-11-07 21:10:53,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-07 21:10:53,203 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 344 [2018-11-07 21:10:53,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:10:53,238 INFO L225 Difference]: With dead ends: 22783 [2018-11-07 21:10:53,238 INFO L226 Difference]: Without dead ends: 12518 [2018-11-07 21:10:53,261 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 351 GetRequests, 313 SyntacticMatches, 16 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2018-11-07 21:10:53,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12518 states. [2018-11-07 21:10:53,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12518 to 12280. [2018-11-07 21:10:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12280 states. [2018-11-07 21:10:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12280 states to 12280 states and 15653 transitions. [2018-11-07 21:10:53,472 INFO L78 Accepts]: Start accepts. Automaton has 12280 states and 15653 transitions. Word has length 344 [2018-11-07 21:10:53,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:10:53,478 INFO L480 AbstractCegarLoop]: Abstraction has 12280 states and 15653 transitions. [2018-11-07 21:10:53,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 21:10:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 12280 states and 15653 transitions. [2018-11-07 21:10:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2018-11-07 21:10:53,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:10:53,499 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:53,499 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:10:53,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:10:53,500 INFO L82 PathProgramCache]: Analyzing trace with hash 732767095, now seen corresponding path program 1 times [2018-11-07 21:10:53,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:10:53,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:10:53,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:10:53,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:10:53,501 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:10:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:10:55,034 WARN L179 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 23 [2018-11-07 21:10:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 6 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:10:57,679 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:10:57,679 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:10:57,680 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 686 with the following transitions: [2018-11-07 21:10:57,681 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1995], [1997], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2228], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:10:57,696 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:10:57,697 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:10:58,586 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:10:58,587 INFO L272 AbstractInterpreter]: Visited 536 different actions 1066 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:10:58,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:10:58,598 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:11:06,337 INFO L227 lantSequenceWeakener]: Weakened 249 states. On average, predicates are now at 78.24% of their original sizes. [2018-11-07 21:11:06,337 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:11:07,058 INFO L415 sIntCurrentIteration]: We unified 684 AI predicates to 684 [2018-11-07 21:11:07,059 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:11:07,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:11:07,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [22] total 51 [2018-11-07 21:11:07,059 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:11:07,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-07 21:11:07,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-07 21:11:07,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2018-11-07 21:11:07,062 INFO L87 Difference]: Start difference. First operand 12280 states and 15653 transitions. Second operand 31 states. [2018-11-07 21:11:56,076 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 21:12:16,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-11-07 21:12:16,409 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:12:16,414 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:12:16,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:12:16 BoogieIcfgContainer [2018-11-07 21:12:16,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:12:16,416 INFO L168 Benchmark]: Toolchain (without parser) took 216291.77 ms. Allocated memory was 1.5 GB in the beginning and 5.3 GB in the end (delta: 3.8 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-11-07 21:12:16,417 INFO L168 Benchmark]: CDTParser took 0.20 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 21:12:16,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1846.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:12:16,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 340.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -967.8 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 21:12:16,419 INFO L168 Benchmark]: Boogie Preprocessor took 242.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2018-11-07 21:12:16,420 INFO L168 Benchmark]: RCFGBuilder took 7291.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.1 MB). Peak memory consumption was 507.1 MB. Max. memory is 7.1 GB. [2018-11-07 21:12:16,421 INFO L168 Benchmark]: TraceAbstraction took 206563.76 ms. Allocated memory was 2.3 GB in the beginning and 5.3 GB in the end (delta: 3.0 GB). Free memory was 1.7 GB in the beginning and 3.0 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 21:12:16,426 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 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1846.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 340.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -967.8 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 242.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7291.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.1 MB). Peak memory consumption was 507.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206563.76 ms. Allocated memory was 2.3 GB in the beginning and 5.3 GB in the end (delta: 3.0 GB). Free memory was 1.7 GB in the beginning and 3.0 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 165]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 165). Cancelled while BasicCegarLoop was constructing difference of abstraction (12280states) and FLOYD_HOARE automaton (currently 38 states, 31 states before enhancement),while ReachableStatesComputation was computing reachable states (14897 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 206.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 184.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2443 SDtfs, 22869 SDslu, 1841 SDs, 0 SdLazy, 41627 SolverSat, 4443 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 74.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1257 GetRequests, 1128 SyntacticMatches, 20 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12280occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.1s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9981422543056562 AbsIntWeakeningRatio, 0.0676246830092984 AbsIntAvgWeakeningVarsNumRemoved, 14.795435333896872 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 448 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1636 NumberOfCodeBlocks, 1636 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1629 ConstructedInterpolants, 0 QuantifiedInterpolants, 9582124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 320/612 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown