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/Problem06_label21_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 23:28:13,913 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 23:28:13,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 23:28:13,936 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 23:28:13,936 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 23:28:13,937 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 23:28:13,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 23:28:13,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 23:28:13,944 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 23:28:13,946 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 23:28:13,947 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 23:28:13,947 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 23:28:13,950 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 23:28:13,951 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 23:28:13,952 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 23:28:13,953 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 23:28:13,954 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 23:28:13,956 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 23:28:13,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 23:28:13,959 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 23:28:13,960 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 23:28:13,961 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 23:28:13,963 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 23:28:13,964 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 23:28:13,964 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 23:28:13,965 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 23:28:13,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 23:28:13,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 23:28:13,967 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 23:28:13,968 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 23:28:13,969 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 23:28:13,969 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 23:28:13,970 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 23:28:13,970 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 23:28:13,971 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 23:28:13,972 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 23:28:13,972 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 [2018-11-06 23:28:14,001 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 23:28:14,002 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 23:28:14,003 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 23:28:14,003 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-06 23:28:14,003 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-06 23:28:14,003 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-06 23:28:14,004 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-06 23:28:14,004 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-06 23:28:14,004 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-06 23:28:14,004 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-06 23:28:14,004 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-06 23:28:14,005 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-06 23:28:14,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 23:28:14,006 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 23:28:14,006 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 23:28:14,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 23:28:14,008 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 23:28:14,008 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 23:28:14,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 23:28:14,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 23:28:14,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 23:28:14,009 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 23:28:14,009 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 23:28:14,009 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 23:28:14,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 23:28:14,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 23:28:14,011 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 23:28:14,011 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 23:28:14,011 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-06 23:28:14,012 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 23:28:14,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 23:28:14,012 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 23:28:14,012 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 23:28:14,012 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-06 23:28:14,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 23:28:14,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 23:28:14,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 23:28:14,117 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 23:28:14,118 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 23:28:14,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label21_false-unreach-call.c [2018-11-06 23:28:14,188 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3dd2492f/847438e103534f4b9c5e93d553710a47/FLAG69e6bb616 [2018-11-06 23:28:15,068 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 23:28:15,070 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label21_false-unreach-call.c [2018-11-06 23:28:15,115 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3dd2492f/847438e103534f4b9c5e93d553710a47/FLAG69e6bb616 [2018-11-06 23:28:15,134 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3dd2492f/847438e103534f4b9c5e93d553710a47 [2018-11-06 23:28:15,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 23:28:15,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 23:28:15,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 23:28:15,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 23:28:15,156 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 23:28:15,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:28:15" (1/1) ... [2018-11-06 23:28:15,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378b024b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:15, skipping insertion in model container [2018-11-06 23:28:15,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:28:15" (1/1) ... [2018-11-06 23:28:15,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 23:28:15,418 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 23:28:17,362 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:28:17,369 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 23:28:18,795 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:28:18,856 INFO L193 MainTranslator]: Completed translation [2018-11-06 23:28:18,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18 WrapperNode [2018-11-06 23:28:18,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 23:28:18,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 23:28:18,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 23:28:18,858 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 23:28:18,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 23:28:19,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 23:28:19,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 23:28:19,454 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 23:28:19,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (1/1) ... [2018-11-06 23:28:19,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 23:28:19,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 23:28:19,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 23:28:19,815 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 23:28:19,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (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 [2018-11-06 23:28:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 23:28:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-06 23:28:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-06 23:28:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-06 23:28:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-06 23:28:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-06 23:28:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-06 23:28:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-06 23:28:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-06 23:28:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-06 23:28:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-06 23:28:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-06 23:28:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-06 23:28:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 23:28:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 23:28:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-06 23:28:19,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-06 23:28:31,565 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 23:28:31,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:28:31 BoogieIcfgContainer [2018-11-06 23:28:31,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 23:28:31,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 23:28:31,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 23:28:31,571 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 23:28:31,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:28:15" (1/3) ... [2018-11-06 23:28:31,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d352919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:28:31, skipping insertion in model container [2018-11-06 23:28:31,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:18" (2/3) ... [2018-11-06 23:28:31,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d352919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:28:31, skipping insertion in model container [2018-11-06 23:28:31,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:28:31" (3/3) ... [2018-11-06 23:28:31,575 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label21_false-unreach-call.c [2018-11-06 23:28:31,585 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 23:28:31,595 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 23:28:31,613 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 23:28:31,679 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 23:28:31,679 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 23:28:31,679 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 23:28:31,680 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 23:28:31,680 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 23:28:31,680 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 23:28:31,680 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 23:28:31,680 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 23:28:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states. [2018-11-06 23:28:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2018-11-06 23:28:31,798 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:28:31,800 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:28:31,802 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:28:31,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:28:31,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1744714784, now seen corresponding path program 1 times [2018-11-06 23:28:31,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:28:31,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:28:31,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:28:31,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:28:31,870 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:28:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:28:33,876 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-06 23:28:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:28:35,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:28:35,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:28:35,087 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:28:35,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:28:35,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:28:35,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:28:35,108 INFO L87 Difference]: Start difference. First operand 1316 states. Second operand 3 states. [2018-11-06 23:28:44,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:28:44,002 INFO L93 Difference]: Finished difference Result 3747 states and 6996 transitions. [2018-11-06 23:28:44,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:28:44,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 946 [2018-11-06 23:28:44,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:28:44,047 INFO L225 Difference]: With dead ends: 3747 [2018-11-06 23:28:44,048 INFO L226 Difference]: Without dead ends: 2429 [2018-11-06 23:28:44,059 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:28:44,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2018-11-06 23:28:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2407. [2018-11-06 23:28:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2407 states. [2018-11-06 23:28:44,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4264 transitions. [2018-11-06 23:28:44,253 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4264 transitions. Word has length 946 [2018-11-06 23:28:44,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:28:44,260 INFO L480 AbstractCegarLoop]: Abstraction has 2407 states and 4264 transitions. [2018-11-06 23:28:44,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:28:44,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4264 transitions. [2018-11-06 23:28:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2018-11-06 23:28:44,299 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:28:44,300 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:28:44,300 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:28:44,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:28:44,301 INFO L82 PathProgramCache]: Analyzing trace with hash -287370624, now seen corresponding path program 1 times [2018-11-06 23:28:44,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:28:44,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:28:44,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:28:44,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:28:44,303 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:28:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:28:44,713 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-06 23:28:45,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:28:45,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:28:45,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 23:28:45,556 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:28:45,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 23:28:45,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 23:28:45,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-06 23:28:45,559 INFO L87 Difference]: Start difference. First operand 2407 states and 4264 transitions. Second operand 5 states. [2018-11-06 23:28:57,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:28:57,149 INFO L93 Difference]: Finished difference Result 7025 states and 12636 transitions. [2018-11-06 23:28:57,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 23:28:57,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 955 [2018-11-06 23:28:57,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:28:57,198 INFO L225 Difference]: With dead ends: 7025 [2018-11-06 23:28:57,198 INFO L226 Difference]: Without dead ends: 4624 [2018-11-06 23:28:57,207 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-06 23:28:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4624 states. [2018-11-06 23:28:57,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4624 to 4529. [2018-11-06 23:28:57,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4529 states. [2018-11-06 23:28:57,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 7695 transitions. [2018-11-06 23:28:57,357 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 7695 transitions. Word has length 955 [2018-11-06 23:28:57,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:28:57,358 INFO L480 AbstractCegarLoop]: Abstraction has 4529 states and 7695 transitions. [2018-11-06 23:28:57,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 23:28:57,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 7695 transitions. [2018-11-06 23:28:57,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2018-11-06 23:28:57,387 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:28:57,388 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:28:57,388 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:28:57,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:28:57,389 INFO L82 PathProgramCache]: Analyzing trace with hash -201959522, now seen corresponding path program 1 times [2018-11-06 23:28:57,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:28:57,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:28:57,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:28:57,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:28:57,391 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:28:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:28:59,833 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:28:59,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:28:59,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:28:59,834 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:28:59,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:28:59,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:28:59,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:28:59,836 INFO L87 Difference]: Start difference. First operand 4529 states and 7695 transitions. Second operand 3 states. [2018-11-06 23:29:06,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:29:06,507 INFO L93 Difference]: Finished difference Result 13224 states and 22971 transitions. [2018-11-06 23:29:06,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:29:06,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 960 [2018-11-06 23:29:06,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:29:06,555 INFO L225 Difference]: With dead ends: 13224 [2018-11-06 23:29:06,555 INFO L226 Difference]: Without dead ends: 8701 [2018-11-06 23:29:06,569 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:29:06,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8701 states. [2018-11-06 23:29:06,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8701 to 8684. [2018-11-06 23:29:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8684 states. [2018-11-06 23:29:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8684 states to 8684 states and 14010 transitions. [2018-11-06 23:29:06,791 INFO L78 Accepts]: Start accepts. Automaton has 8684 states and 14010 transitions. Word has length 960 [2018-11-06 23:29:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:29:06,794 INFO L480 AbstractCegarLoop]: Abstraction has 8684 states and 14010 transitions. [2018-11-06 23:29:06,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:29:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8684 states and 14010 transitions. [2018-11-06 23:29:06,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2018-11-06 23:29:06,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:29:06,829 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:29:06,829 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:29:06,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:29:06,830 INFO L82 PathProgramCache]: Analyzing trace with hash 279168616, now seen corresponding path program 1 times [2018-11-06 23:29:06,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:29:06,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:29:06,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:29:06,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:29:06,832 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:29:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:29:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:29:07,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:29:07,597 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:29:07,599 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 969 with the following transitions: [2018-11-06 23:29:07,604 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [231], [233], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], 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[4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5018], [5024], [5028], [5030], [5035], [5037], [5039], [5041], [5043], [5044], [5045], [5047], [5048] [2018-11-06 23:29:07,776 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:29:07,776 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-11-06 23:32:34,833 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-06 23:32:34,833 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-06 23:32:34,835 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-06 23:32:34,835 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:32:34,835 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 23:32:34,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:32:34,845 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-06 23:32:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:32:35,386 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 23:32:35,427 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-06 23:32:35,628 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 23:32:35,629 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 23:32:35,634 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 23:32:35,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:32:35 BoogieIcfgContainer [2018-11-06 23:32:35,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 23:32:35,636 INFO L168 Benchmark]: Toolchain (without parser) took 260488.87 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 213.8 MB. Max. memory is 7.1 GB. [2018-11-06 23:32:35,637 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. [2018-11-06 23:32:35,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3707.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-11-06 23:32:35,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 595.73 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 834.7 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2018-11-06 23:32:35,639 INFO L168 Benchmark]: Boogie Preprocessor took 360.96 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. [2018-11-06 23:32:35,640 INFO L168 Benchmark]: RCFGBuilder took 11751.57 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 184.0 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 374.0 MB). Peak memory consumption was 683.7 MB. Max. memory is 7.1 GB. [2018-11-06 23:32:35,641 INFO L168 Benchmark]: TraceAbstraction took 244067.60 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 3.9 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 23:32:35,647 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 3707.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 595.73 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 834.7 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 360.96 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11751.57 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 184.0 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 374.0 MB). Peak memory consumption was 683.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244067.60 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 3.9 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9285]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 9285). Cancelled while BasicCegarLoop was analyzing trace of length 969 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 1316 locations, 1 error locations. TIMEOUT Result, 243.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 27.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2104 SDtfs, 5912 SDslu, 991 SDs, 0 SdLazy, 11788 SolverSat, 4083 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 7 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8684occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 207.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 134 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2861 NumberOfCodeBlocks, 2861 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2858 ConstructedInterpolants, 0 QuantifiedInterpolants, 7233511 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 17/17 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown