java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:12:19,791 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:12:19,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:12:19,817 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:12:19,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:12:19,822 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:12:19,824 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:12:19,827 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:12:19,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:12:19,836 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:12:19,837 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:12:19,841 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:12:19,842 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:12:19,843 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:12:19,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:12:19,848 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:12:19,848 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:12:19,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:12:19,859 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:12:19,863 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:12:19,865 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:12:19,867 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:12:19,873 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 04:12:19,873 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 04:12:19,873 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 04:12:19,874 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 04:12:19,875 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 04:12:19,876 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 04:12:19,877 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 04:12:19,878 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 04:12:19,878 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 04:12:19,879 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 04:12:19,879 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:12:19,879 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:12:19,880 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:12:19,881 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:12:19,881 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 04:12:19,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:12:19,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:12:19,909 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:12:19,909 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:12:19,909 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:12:19,909 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:12:19,910 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:12:19,910 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:12:19,910 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:12:19,910 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:12:19,910 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:12:19,911 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:12:19,912 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:12:19,912 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:12:19,912 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:12:19,912 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:12:19,912 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:12:19,913 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:12:19,913 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:12:19,913 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:12:19,913 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:12:19,913 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:12:19,915 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:12:19,915 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:12:19,915 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:12:19,916 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:12:19,916 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:12:19,916 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:12:19,916 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:12:19,916 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:12:19,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:12:19,917 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:12:19,917 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:12:19,917 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:12:19,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:12:20,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:12:20,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:12:20,012 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:12:20,012 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:12:20,013 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label05_true-unreach-call.c [2018-11-07 04:12:20,077 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09333592a/fb4f1fba5e1445f5af0f5f70dd3197a2/FLAG697d098a5 [2018-11-07 04:12:21,087 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:12:21,091 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label05_true-unreach-call.c [2018-11-07 04:12:21,166 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09333592a/fb4f1fba5e1445f5af0f5f70dd3197a2/FLAG697d098a5 [2018-11-07 04:12:21,185 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09333592a/fb4f1fba5e1445f5af0f5f70dd3197a2 [2018-11-07 04:12:21,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:12:21,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:12:21,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:12:21,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:12:21,206 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:12:21,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:12:21" (1/1) ... [2018-11-07 04:12:21,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae48c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:21, skipping insertion in model container [2018-11-07 04:12:21,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:12:21" (1/1) ... [2018-11-07 04:12:21,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:12:21,474 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:12:23,498 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:12:23,509 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:12:24,573 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:12:24,621 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:12:24,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24 WrapperNode [2018-11-07 04:12:24,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:12:24,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:12:24,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:12:24,623 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:12:24,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:12:25,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:12:25,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:12:25,165 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:12:25,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... [2018-11-07 04:12:25,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:12:25,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:12:25,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:12:25,661 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:12:25,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:12:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 04:12:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:12:25,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:12:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 04:12:25,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 04:12:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 04:12:25,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 04:12:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 04:12:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 04:12:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 04:12:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 04:12:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 04:12:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 04:12:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 04:12:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 04:12:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:12:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:12:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:12:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:12:41,807 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:12:41,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:12:41 BoogieIcfgContainer [2018-11-07 04:12:41,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:12:41,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:12:41,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:12:41,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:12:41,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:12:21" (1/3) ... [2018-11-07 04:12:41,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245983f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:12:41, skipping insertion in model container [2018-11-07 04:12:41,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:12:24" (2/3) ... [2018-11-07 04:12:41,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245983f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:12:41, skipping insertion in model container [2018-11-07 04:12:41,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:12:41" (3/3) ... [2018-11-07 04:12:41,816 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label05_true-unreach-call.c [2018-11-07 04:12:41,827 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:12:41,840 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:12:41,858 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:12:41,912 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:12:41,912 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:12:41,912 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:12:41,913 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:12:41,913 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:12:41,913 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:12:41,913 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:12:41,913 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:12:41,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 04:12:41,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-07 04:12:41,976 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:12:41,978 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] [2018-11-07 04:12:41,980 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:12:41,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:12:41,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1860482762, now seen corresponding path program 1 times [2018-11-07 04:12:41,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:12:42,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:42,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:12:42,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:42,046 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:12:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:12:42,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:12:42,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:12:42,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 04:12:42,569 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:12:42,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 04:12:42,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 04:12:42,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:12:42,596 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-07 04:12:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:12:55,520 INFO L93 Difference]: Finished difference Result 4995 states and 9413 transitions. [2018-11-07 04:12:55,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 04:12:55,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-11-07 04:12:55,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:12:55,578 INFO L225 Difference]: With dead ends: 4995 [2018-11-07 04:12:55,579 INFO L226 Difference]: Without dead ends: 3215 [2018-11-07 04:12:55,596 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 04:12:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2018-11-07 04:12:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2018-11-07 04:12:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2018-11-07 04:12:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 5833 transitions. [2018-11-07 04:12:55,820 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 5833 transitions. Word has length 67 [2018-11-07 04:12:55,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:12:55,821 INFO L480 AbstractCegarLoop]: Abstraction has 3213 states and 5833 transitions. [2018-11-07 04:12:55,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 04:12:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 5833 transitions. [2018-11-07 04:12:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-07 04:12:55,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:12:55,836 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:12:55,836 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:12:55,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:12:55,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1310005478, now seen corresponding path program 1 times [2018-11-07 04:12:55,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:12:55,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:55,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:12:55,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:12:55,839 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:12:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:12:56,304 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:12:56,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:12:56,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:12:56,305 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:12:56,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:12:56,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:12:56,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:12:56,309 INFO L87 Difference]: Start difference. First operand 3213 states and 5833 transitions. Second operand 5 states. [2018-11-07 04:13:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:26,320 INFO L93 Difference]: Finished difference Result 12250 states and 22705 transitions. [2018-11-07 04:13:26,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 04:13:26,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-11-07 04:13:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:26,378 INFO L225 Difference]: With dead ends: 12250 [2018-11-07 04:13:26,378 INFO L226 Difference]: Without dead ends: 9043 [2018-11-07 04:13:26,394 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:13:26,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9043 states. [2018-11-07 04:13:26,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9043 to 8962. [2018-11-07 04:13:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8962 states. [2018-11-07 04:13:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8962 states to 8962 states and 13239 transitions. [2018-11-07 04:13:26,644 INFO L78 Accepts]: Start accepts. Automaton has 8962 states and 13239 transitions. Word has length 141 [2018-11-07 04:13:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:26,644 INFO L480 AbstractCegarLoop]: Abstraction has 8962 states and 13239 transitions. [2018-11-07 04:13:26,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:13:26,645 INFO L276 IsEmpty]: Start isEmpty. Operand 8962 states and 13239 transitions. [2018-11-07 04:13:26,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 04:13:26,650 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:26,650 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 04:13:26,650 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:26,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:26,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1307216630, now seen corresponding path program 1 times [2018-11-07 04:13:26,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:26,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:26,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:26,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:26,652 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:13:27,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:13:27,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:13:27,088 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:13:27,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:13:27,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:13:27,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:13:27,090 INFO L87 Difference]: Start difference. First operand 8962 states and 13239 transitions. Second operand 6 states. [2018-11-07 04:13:43,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:13:43,268 INFO L93 Difference]: Finished difference Result 27252 states and 40792 transitions. [2018-11-07 04:13:43,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 04:13:43,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-07 04:13:43,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:13:43,359 INFO L225 Difference]: With dead ends: 27252 [2018-11-07 04:13:43,360 INFO L226 Difference]: Without dead ends: 18296 [2018-11-07 04:13:43,388 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 04:13:43,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18296 states. [2018-11-07 04:13:43,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18296 to 17994. [2018-11-07 04:13:43,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17994 states. [2018-11-07 04:13:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17994 states to 17994 states and 26025 transitions. [2018-11-07 04:13:43,827 INFO L78 Accepts]: Start accepts. Automaton has 17994 states and 26025 transitions. Word has length 149 [2018-11-07 04:13:43,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:13:43,828 INFO L480 AbstractCegarLoop]: Abstraction has 17994 states and 26025 transitions. [2018-11-07 04:13:43,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:13:43,828 INFO L276 IsEmpty]: Start isEmpty. Operand 17994 states and 26025 transitions. [2018-11-07 04:13:43,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-07 04:13:43,832 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:13:43,832 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 04:13:43,832 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:13:43,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:13:43,833 INFO L82 PathProgramCache]: Analyzing trace with hash 899038028, now seen corresponding path program 1 times [2018-11-07 04:13:43,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:13:43,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:43,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:13:43,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:13:43,837 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:13:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:13:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:13:44,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:13:44,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 04:13:44,146 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:13:44,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 04:13:44,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 04:13:44,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 04:13:44,148 INFO L87 Difference]: Start difference. First operand 17994 states and 26025 transitions. Second operand 5 states. [2018-11-07 04:14:01,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:14:01,955 INFO L93 Difference]: Finished difference Result 55248 states and 81599 transitions. [2018-11-07 04:14:01,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 04:14:01,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2018-11-07 04:14:01,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:14:02,091 INFO L225 Difference]: With dead ends: 55248 [2018-11-07 04:14:02,092 INFO L226 Difference]: Without dead ends: 37260 [2018-11-07 04:14:02,145 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 04:14:02,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37260 states. [2018-11-07 04:14:02,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37260 to 36332. [2018-11-07 04:14:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36332 states. [2018-11-07 04:14:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36332 states to 36332 states and 47855 transitions. [2018-11-07 04:14:02,843 INFO L78 Accepts]: Start accepts. Automaton has 36332 states and 47855 transitions. Word has length 169 [2018-11-07 04:14:02,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:14:02,844 INFO L480 AbstractCegarLoop]: Abstraction has 36332 states and 47855 transitions. [2018-11-07 04:14:02,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 04:14:02,844 INFO L276 IsEmpty]: Start isEmpty. Operand 36332 states and 47855 transitions. [2018-11-07 04:14:02,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-11-07 04:14:02,852 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:14:02,852 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 04:14:02,853 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:14:02,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:14:02,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1152657023, now seen corresponding path program 1 times [2018-11-07 04:14:02,853 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:14:02,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:14:02,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:14:02,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:14:02,855 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:14:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:14:03,209 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 04:14:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:14:03,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:14:03,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 04:14:03,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:14:03,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 04:14:03,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 04:14:03,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 04:14:03,669 INFO L87 Difference]: Start difference. First operand 36332 states and 47855 transitions. Second operand 6 states. [2018-11-07 04:14:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:14:19,989 INFO L93 Difference]: Finished difference Result 86444 states and 117379 transitions. [2018-11-07 04:14:19,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:14:19,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2018-11-07 04:14:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:14:20,130 INFO L225 Difference]: With dead ends: 86444 [2018-11-07 04:14:20,131 INFO L226 Difference]: Without dead ends: 50118 [2018-11-07 04:14:20,220 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 04:14:20,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50118 states. [2018-11-07 04:14:20,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50118 to 49168. [2018-11-07 04:14:20,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49168 states. [2018-11-07 04:14:21,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49168 states to 49168 states and 63615 transitions. [2018-11-07 04:14:21,059 INFO L78 Accepts]: Start accepts. Automaton has 49168 states and 63615 transitions. Word has length 232 [2018-11-07 04:14:21,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:14:21,060 INFO L480 AbstractCegarLoop]: Abstraction has 49168 states and 63615 transitions. [2018-11-07 04:14:21,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 04:14:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 49168 states and 63615 transitions. [2018-11-07 04:14:21,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-11-07 04:14:21,068 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:14:21,068 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 04:14:21,069 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:14:21,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:14:21,069 INFO L82 PathProgramCache]: Analyzing trace with hash -419369166, now seen corresponding path program 1 times [2018-11-07 04:14:21,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:14:21,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:14:21,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:14:21,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:14:21,071 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:14:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:14:21,402 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 04:14:21,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:14:21,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 04:14:21,403 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:14:21,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 04:14:21,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 04:14:21,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:14:21,407 INFO L87 Difference]: Start difference. First operand 49168 states and 63615 transitions. Second operand 4 states. [2018-11-07 04:14:37,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:14:37,161 INFO L93 Difference]: Finished difference Result 179561 states and 250457 transitions. [2018-11-07 04:14:37,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 04:14:37,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 279 [2018-11-07 04:14:37,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:14:37,558 INFO L225 Difference]: With dead ends: 179561 [2018-11-07 04:14:37,558 INFO L226 Difference]: Without dead ends: 130399 [2018-11-07 04:14:37,666 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 04:14:37,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130399 states. [2018-11-07 04:14:39,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130399 to 130026. [2018-11-07 04:14:39,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130026 states. [2018-11-07 04:14:39,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130026 states to 130026 states and 172363 transitions. [2018-11-07 04:14:39,921 INFO L78 Accepts]: Start accepts. Automaton has 130026 states and 172363 transitions. Word has length 279 [2018-11-07 04:14:39,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:14:39,922 INFO L480 AbstractCegarLoop]: Abstraction has 130026 states and 172363 transitions. [2018-11-07 04:14:39,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 04:14:39,922 INFO L276 IsEmpty]: Start isEmpty. Operand 130026 states and 172363 transitions. [2018-11-07 04:14:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2018-11-07 04:14:39,956 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:14:39,957 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:14:39,957 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:14:39,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:14:39,958 INFO L82 PathProgramCache]: Analyzing trace with hash -555806953, now seen corresponding path program 1 times [2018-11-07 04:14:39,958 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:14:39,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:14:39,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:14:39,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:14:39,959 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:14:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:14:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 395 proven. 98 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-11-07 04:14:42,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 04:14:42,060 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 04:14:42,061 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 596 with the following transitions: [2018-11-07 04:14:42,071 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5634], [5642], [5650], [5658], [5662], [5664], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6420], [6421], [6425], [6429], [6432], [6437], [6439], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 04:14:42,175 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 04:14:42,176 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 04:14:44,909 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 04:14:51,039 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 04:14:51,042 INFO L272 AbstractInterpreter]: Visited 221 different actions 221 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 04:14:51,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:14:51,084 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 04:14:57,128 INFO L227 lantSequenceWeakener]: Weakened 582 states. On average, predicates are now at 75.37% of their original sizes. [2018-11-07 04:14:57,129 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 04:14:57,606 INFO L415 sIntCurrentIteration]: We unified 594 AI predicates to 594 [2018-11-07 04:14:57,607 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 04:14:57,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 04:14:57,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 04:14:57,608 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:14:57,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 04:14:57,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 04:14:57,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 04:14:57,610 INFO L87 Difference]: Start difference. First operand 130026 states and 172363 transitions. Second operand 7 states. Received shutdown request... [2018-11-07 04:15:46,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 04:15:46,810 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 04:15:46,815 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 04:15:46,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:15:46 BoogieIcfgContainer [2018-11-07 04:15:46,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:15:46,817 INFO L168 Benchmark]: Toolchain (without parser) took 205618.71 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-11-07 04:15:46,818 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 04:15:46,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3421.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 994.7 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:46,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 542.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 826.8 MB). Free memory was 994.7 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:46,821 INFO L168 Benchmark]: Boogie Preprocessor took 495.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:46,821 INFO L168 Benchmark]: RCFGBuilder took 16147.35 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 159.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 496.4 MB). Peak memory consumption was 666.1 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:46,823 INFO L168 Benchmark]: TraceAbstraction took 185006.70 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: -1.1 GB). Peak memory consumption was 339.9 MB. Max. memory is 7.1 GB. [2018-11-07 04:15:46,829 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3421.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 994.7 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 542.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 826.8 MB). Free memory was 994.7 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 495.61 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16147.35 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 159.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 496.4 MB). Peak memory consumption was 666.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 185006.70 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: -1.1 GB). Peak memory consumption was 339.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 196]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 196). Cancelled while BasicCegarLoop was constructing difference of abstraction (130026states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (39756 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 184.9s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 159.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5759 SDtfs, 32571 SDslu, 4146 SDs, 0 SdLazy, 53510 SolverSat, 13444 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 109.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 644 GetRequests, 605 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130026occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.998171458171458 AbsIntWeakeningRatio, 0.058922558922558925 AbsIntAvgWeakeningVarsNumRemoved, 1069.7053872053873 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 2636 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1632 NumberOfCodeBlocks, 1632 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1625 ConstructedInterpolants, 0 QuantifiedInterpolants, 1771377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 792/890 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown