java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 18:55:33,635 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 18:55:33,637 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 18:55:33,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 18:55:33,649 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 18:55:33,650 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 18:55:33,651 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 18:55:33,653 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 18:55:33,655 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 18:55:33,656 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 18:55:33,657 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 18:55:33,657 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 18:55:33,658 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 18:55:33,659 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 18:55:33,660 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 18:55:33,661 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 18:55:33,662 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 18:55:33,663 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 18:55:33,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 18:55:33,667 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 18:55:33,668 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 18:55:33,670 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 18:55:33,672 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 18:55:33,672 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 18:55:33,673 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 18:55:33,673 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 18:55:33,674 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 18:55:33,675 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 18:55:33,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 18:55:33,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 18:55:33,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 18:55:33,678 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 18:55:33,678 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 18:55:33,679 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 18:55:33,680 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 18:55:33,680 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 18:55:33,681 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 18:55:33,696 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 18:55:33,696 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 18:55:33,697 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 18:55:33,697 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 18:55:33,698 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 18:55:33,698 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 18:55:33,698 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 18:55:33,698 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 18:55:33,698 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 18:55:33,699 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 18:55:33,699 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 18:55:33,699 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 18:55:33,699 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 18:55:33,700 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 18:55:33,700 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 18:55:33,700 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 18:55:33,700 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 18:55:33,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 18:55:33,701 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 18:55:33,701 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 18:55:33,701 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 18:55:33,702 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 18:55:33,702 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 18:55:33,702 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 18:55:33,702 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 18:55:33,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:55:33,703 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 18:55:33,703 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 18:55:33,703 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 18:55:33,703 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 18:55:33,703 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 18:55:33,703 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 18:55:33,704 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 18:55:33,704 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 18:55:33,704 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 18:55:33,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 18:55:33,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 18:55:33,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 18:55:33,765 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 18:55:33,765 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 18:55:33,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c [2018-11-12 18:55:33,828 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/350426b41/6141b2f09311433cb5a3e44f6371648d/FLAG04b9a9cff [2018-11-12 18:55:34,673 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 18:55:34,674 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label15_true-unreach-call.c [2018-11-12 18:55:34,715 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/350426b41/6141b2f09311433cb5a3e44f6371648d/FLAG04b9a9cff [2018-11-12 18:55:34,737 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/350426b41/6141b2f09311433cb5a3e44f6371648d [2018-11-12 18:55:34,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 18:55:34,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 18:55:34,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 18:55:34,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 18:55:34,761 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 18:55:34,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:55:34" (1/1) ... [2018-11-12 18:55:34,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd8c054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:34, skipping insertion in model container [2018-11-12 18:55:34,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:55:34" (1/1) ... [2018-11-12 18:55:34,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 18:55:34,975 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 18:55:36,369 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:55:36,374 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 18:55:37,118 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:55:37,156 INFO L193 MainTranslator]: Completed translation [2018-11-12 18:55:37,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37 WrapperNode [2018-11-12 18:55:37,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 18:55:37,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 18:55:37,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 18:55:37,158 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 18:55:37,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 18:55:37,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 18:55:37,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 18:55:37,542 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 18:55:37,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (1/1) ... [2018-11-12 18:55:37,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 18:55:37,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 18:55:37,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 18:55:37,901 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 18:55:37,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (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 [2018-11-12 18:55:37,971 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 18:55:37,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 18:55:37,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 18:55:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 18:55:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 18:55:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 18:55:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 18:55:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 18:55:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 18:55:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 18:55:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 18:55:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 18:55:37,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 18:55:37,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 18:55:37,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 18:55:47,907 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 18:55:47,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:55:47 BoogieIcfgContainer [2018-11-12 18:55:47,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 18:55:47,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 18:55:47,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 18:55:47,912 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 18:55:47,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:55:34" (1/3) ... [2018-11-12 18:55:47,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364d9693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:55:47, skipping insertion in model container [2018-11-12 18:55:47,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:55:37" (2/3) ... [2018-11-12 18:55:47,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364d9693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:55:47, skipping insertion in model container [2018-11-12 18:55:47,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:55:47" (3/3) ... [2018-11-12 18:55:47,916 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label15_true-unreach-call.c [2018-11-12 18:55:47,926 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 18:55:47,937 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 18:55:47,956 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 18:55:48,004 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 18:55:48,004 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 18:55:48,004 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 18:55:48,004 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 18:55:48,004 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 18:55:48,004 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 18:55:48,005 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 18:55:48,005 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 18:55:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-12 18:55:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-12 18:55:48,061 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:55:48,062 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] [2018-11-12 18:55:48,064 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:55:48,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:55:48,071 INFO L82 PathProgramCache]: Analyzing trace with hash 801605187, now seen corresponding path program 1 times [2018-11-12 18:55:48,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:55:48,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:48,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:55:48,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:48,134 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:55:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:55:48,516 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:55:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:55:48,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:55:48,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 18:55:48,639 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:55:48,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 18:55:48,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 18:55:48,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:55:48,670 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-12 18:55:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:55:56,598 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-11-12 18:55:56,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 18:55:56,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2018-11-12 18:55:56,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:55:56,646 INFO L225 Difference]: With dead ends: 3097 [2018-11-12 18:55:56,646 INFO L226 Difference]: Without dead ends: 1975 [2018-11-12 18:55:56,659 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 [2018-11-12 18:55:56,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-11-12 18:55:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-11-12 18:55:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-11-12 18:55:56,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-11-12 18:55:56,831 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 43 [2018-11-12 18:55:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:55:56,832 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-11-12 18:55:56,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 18:55:56,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-11-12 18:55:56,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-12 18:55:56,842 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:55:56,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:55:56,845 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:55:56,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:55:56,845 INFO L82 PathProgramCache]: Analyzing trace with hash 2094905010, now seen corresponding path program 1 times [2018-11-12 18:55:56,846 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:55:56,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:56,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:55:56,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:56,849 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:55:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:55:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:55:57,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:55:57,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 18:55:57,166 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:55:57,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 18:55:57,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 18:55:57,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 18:55:57,169 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-11-12 18:56:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:56:11,003 INFO L93 Difference]: Finished difference Result 5733 states and 9688 transitions. [2018-11-12 18:56:11,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 18:56:11,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-11-12 18:56:11,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:56:11,037 INFO L225 Difference]: With dead ends: 5733 [2018-11-12 18:56:11,038 INFO L226 Difference]: Without dead ends: 3765 [2018-11-12 18:56:11,045 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 18:56:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2018-11-12 18:56:11,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3682. [2018-11-12 18:56:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3682 states. [2018-11-12 18:56:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 5656 transitions. [2018-11-12 18:56:11,165 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 5656 transitions. Word has length 119 [2018-11-12 18:56:11,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:56:11,166 INFO L480 AbstractCegarLoop]: Abstraction has 3682 states and 5656 transitions. [2018-11-12 18:56:11,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 18:56:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 5656 transitions. [2018-11-12 18:56:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-12 18:56:11,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:56:11,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:56:11,172 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:56:11,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:11,172 INFO L82 PathProgramCache]: Analyzing trace with hash 695171086, now seen corresponding path program 1 times [2018-11-12 18:56:11,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:56:11,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:11,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:56:11,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:11,174 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:56:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:56:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:56:11,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:56:11,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 18:56:11,404 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:56:11,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 18:56:11,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 18:56:11,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 18:56:11,405 INFO L87 Difference]: Start difference. First operand 3682 states and 5656 transitions. Second operand 5 states. [2018-11-12 18:56:28,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:56:28,324 INFO L93 Difference]: Finished difference Result 13646 states and 21724 transitions. [2018-11-12 18:56:28,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 18:56:28,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-11-12 18:56:28,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:56:28,396 INFO L225 Difference]: With dead ends: 13646 [2018-11-12 18:56:28,396 INFO L226 Difference]: Without dead ends: 9970 [2018-11-12 18:56:28,422 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 [2018-11-12 18:56:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9970 states. [2018-11-12 18:56:28,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9970 to 9783. [2018-11-12 18:56:28,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9783 states. [2018-11-12 18:56:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9783 states to 9783 states and 14478 transitions. [2018-11-12 18:56:28,700 INFO L78 Accepts]: Start accepts. Automaton has 9783 states and 14478 transitions. Word has length 133 [2018-11-12 18:56:28,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:56:28,700 INFO L480 AbstractCegarLoop]: Abstraction has 9783 states and 14478 transitions. [2018-11-12 18:56:28,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 18:56:28,701 INFO L276 IsEmpty]: Start isEmpty. Operand 9783 states and 14478 transitions. [2018-11-12 18:56:28,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-12 18:56:28,710 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:56:28,710 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:56:28,710 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:56:28,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:28,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1489581070, now seen corresponding path program 1 times [2018-11-12 18:56:28,711 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:56:28,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:28,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:56:28,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:28,712 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:56:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:56:28,964 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:56:28,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:56:28,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:56:28,964 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:56:28,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:56:28,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:56:28,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:56:28,966 INFO L87 Difference]: Start difference. First operand 9783 states and 14478 transitions. Second operand 6 states. [2018-11-12 18:56:41,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:56:41,612 INFO L93 Difference]: Finished difference Result 34080 states and 53548 transitions. [2018-11-12 18:56:41,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:56:41,615 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-11-12 18:56:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:56:41,742 INFO L225 Difference]: With dead ends: 34080 [2018-11-12 18:56:41,742 INFO L226 Difference]: Without dead ends: 24303 [2018-11-12 18:56:41,815 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 18:56:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24303 states. [2018-11-12 18:56:42,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24303 to 24080. [2018-11-12 18:56:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24080 states. [2018-11-12 18:56:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24080 states to 24080 states and 33899 transitions. [2018-11-12 18:56:42,462 INFO L78 Accepts]: Start accepts. Automaton has 24080 states and 33899 transitions. Word has length 151 [2018-11-12 18:56:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:56:42,462 INFO L480 AbstractCegarLoop]: Abstraction has 24080 states and 33899 transitions. [2018-11-12 18:56:42,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:56:42,463 INFO L276 IsEmpty]: Start isEmpty. Operand 24080 states and 33899 transitions. [2018-11-12 18:56:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-12 18:56:42,471 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:56:42,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:56:42,471 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:56:42,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:42,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1334716798, now seen corresponding path program 1 times [2018-11-12 18:56:42,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:56:42,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:42,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:56:42,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:42,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:56:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:56:42,728 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:56:42,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:56:42,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 18:56:42,729 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:56:42,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 18:56:42,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 18:56:42,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:56:42,731 INFO L87 Difference]: Start difference. First operand 24080 states and 33899 transitions. Second operand 4 states. [2018-11-12 18:56:52,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:56:52,743 INFO L93 Difference]: Finished difference Result 66452 states and 99407 transitions. [2018-11-12 18:56:52,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 18:56:52,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2018-11-12 18:56:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:56:52,925 INFO L225 Difference]: With dead ends: 66452 [2018-11-12 18:56:52,926 INFO L226 Difference]: Without dead ends: 42378 [2018-11-12 18:56:53,013 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 [2018-11-12 18:56:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42378 states. [2018-11-12 18:56:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42378 to 42325. [2018-11-12 18:56:53,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42325 states. [2018-11-12 18:56:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42325 states to 42325 states and 59738 transitions. [2018-11-12 18:56:53,968 INFO L78 Accepts]: Start accepts. Automaton has 42325 states and 59738 transitions. Word has length 159 [2018-11-12 18:56:53,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:56:53,969 INFO L480 AbstractCegarLoop]: Abstraction has 42325 states and 59738 transitions. [2018-11-12 18:56:53,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 18:56:53,969 INFO L276 IsEmpty]: Start isEmpty. Operand 42325 states and 59738 transitions. [2018-11-12 18:56:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-11-12 18:56:53,987 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:56:53,987 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 18:56:53,987 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:56:53,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:53,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1702866948, now seen corresponding path program 1 times [2018-11-12 18:56:53,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:56:53,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:53,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:56:53,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:53,989 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:56:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:56:54,308 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:56:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 18:56:54,532 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:56:54,533 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:56:54,534 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-11-12 18:56:54,536 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2871], [2873], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3155], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3336], [3341], [3343], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 18:56:54,591 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:56:54,591 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:56:55,489 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:56:55,491 INFO L272 AbstractInterpreter]: Visited 122 different actions 122 times. Never merged. Never widened. Performed 2784 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2784 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 18:56:55,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:55,534 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:56:56,478 INFO L227 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 71.42% of their original sizes. [2018-11-12 18:56:56,479 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:56:57,283 INFO L415 sIntCurrentIteration]: We unified 238 AI predicates to 238 [2018-11-12 18:56:57,284 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:56:57,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:56:57,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 18:56:57,285 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:56:57,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 18:56:57,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 18:56:57,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 18:56:57,287 INFO L87 Difference]: Start difference. First operand 42325 states and 59738 transitions. Second operand 11 states. [2018-11-12 18:57:11,130 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:58:42,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:58:42,199 INFO L93 Difference]: Finished difference Result 85453 states and 120395 transitions. [2018-11-12 18:58:42,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-12 18:58:42,199 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2018-11-12 18:58:42,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:58:42,366 INFO L225 Difference]: With dead ends: 85453 [2018-11-12 18:58:42,367 INFO L226 Difference]: Without dead ends: 43134 [2018-11-12 18:58:42,480 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 243 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-12 18:58:42,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43134 states. [2018-11-12 18:58:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43134 to 43129. [2018-11-12 18:58:43,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43129 states. [2018-11-12 18:58:43,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43129 states to 43129 states and 60553 transitions. [2018-11-12 18:58:43,307 INFO L78 Accepts]: Start accepts. Automaton has 43129 states and 60553 transitions. Word has length 239 [2018-11-12 18:58:43,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:58:43,308 INFO L480 AbstractCegarLoop]: Abstraction has 43129 states and 60553 transitions. [2018-11-12 18:58:43,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 18:58:43,308 INFO L276 IsEmpty]: Start isEmpty. Operand 43129 states and 60553 transitions. [2018-11-12 18:58:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-11-12 18:58:43,331 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:58:43,331 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:58:43,331 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:58:43,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:58:43,332 INFO L82 PathProgramCache]: Analyzing trace with hash -44864646, now seen corresponding path program 1 times [2018-11-12 18:58:43,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:58:43,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:58:43,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:58:43,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:58:43,333 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:58:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:58:43,600 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:58:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 114 proven. 166 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-12 18:58:43,672 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:58:43,672 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:58:43,673 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-11-12 18:58:43,673 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2871], [2873], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3155], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3221], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 18:58:43,682 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:58:43,682 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:58:45,473 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:58:45,473 INFO L272 AbstractInterpreter]: Visited 110 different actions 320 times. Merged at 5 different actions 12 times. Never widened. Performed 6795 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6795 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 18:58:45,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:58:45,514 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:58:46,278 INFO L227 lantSequenceWeakener]: Weakened 108 states. On average, predicates are now at 72.13% of their original sizes. [2018-11-12 18:58:46,279 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:58:48,781 INFO L415 sIntCurrentIteration]: We unified 310 AI predicates to 310 [2018-11-12 18:58:48,782 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:58:48,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:58:48,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-12 18:58:48,782 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:58:48,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 18:58:48,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 18:58:48,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-12 18:58:48,784 INFO L87 Difference]: Start difference. First operand 43129 states and 60553 transitions. Second operand 19 states. [2018-11-12 18:58:58,559 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 18:58:59,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-12 18:58:59,892 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 18:58:59,897 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 18:58:59,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:58:59 BoogieIcfgContainer [2018-11-12 18:58:59,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 18:58:59,898 INFO L168 Benchmark]: Toolchain (without parser) took 205147.52 ms. Allocated memory was 1.5 GB in the beginning and 5.7 GB in the end (delta: 4.2 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 343.8 MB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB. [2018-11-12 18:58:59,900 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-12 18:58:59,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2403.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-11-12 18:58:59,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 383.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2018-11-12 18:58:59,902 INFO L168 Benchmark]: Boogie Preprocessor took 358.72 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2018-11-12 18:58:59,903 INFO L168 Benchmark]: RCFGBuilder took 10007.81 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 162.5 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 25.6 MB). Peak memory consumption was 669.3 MB. Max. memory is 7.1 GB. [2018-11-12 18:58:59,904 INFO L168 Benchmark]: TraceAbstraction took 191988.57 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.2 GB). Free memory was 2.2 GB in the beginning and 1.1 GB in the end (delta: 1.1 GB). Peak memory consumption was 4.3 GB. Max. memory is 7.1 GB. [2018-11-12 18:58:59,909 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2403.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 383.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 358.72 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10007.81 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 162.5 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 25.6 MB). Peak memory consumption was 669.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 191988.57 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.2 GB). Free memory was 2.2 GB in the beginning and 1.1 GB in the end (delta: 1.1 GB). Peak memory consumption was 4.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 120). Cancelled while BasicCegarLoop was constructing difference of abstraction (43129states) and FLOYD_HOARE automaton (currently 15 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (2384 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 191.9s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 178.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4041 SDtfs, 19690 SDslu, 3447 SDs, 0 SdLazy, 36555 SolverSat, 7558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 599 GetRequests, 483 SyntacticMatches, 55 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43129occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9974622414240787 AbsIntWeakeningRatio, 0.11131386861313869 AbsIntAvgWeakeningVarsNumRemoved, 7.410583941605839 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 552 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1155 NumberOfCodeBlocks, 1155 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1148 ConstructedInterpolants, 0 QuantifiedInterpolants, 677954 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 407/645 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown