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/Problem16_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:43:18,659 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:43:18,661 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:43:18,673 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:43:18,674 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:43:18,675 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:43:18,676 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:43:18,678 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:43:18,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:43:18,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:43:18,681 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:43:18,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:43:18,682 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:43:18,683 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:43:18,684 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:43:18,685 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:43:18,686 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:43:18,688 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:43:18,690 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:43:18,691 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:43:18,693 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:43:18,694 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:43:18,696 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 03:43:18,703 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:43:18,703 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:43:18,704 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:43:18,705 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:43:18,705 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 03:43:18,720 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:43:18,721 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:43:18,722 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:43:18,722 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:43:18,722 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:43:18,722 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:43:18,722 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:43:18,723 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:43:18,723 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:43:18,723 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:43:18,723 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:43:18,723 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:43:18,724 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:43:18,724 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:43:18,724 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:43:18,725 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:43:18,725 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:43:18,725 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:43:18,725 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:43:18,725 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:43:18,726 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:43:18,726 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:43:18,726 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:43:18,726 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:43:18,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:43:18,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:43:18,727 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:43:18,727 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:43:18,727 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:43:18,727 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:43:18,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:43:18,728 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:43:18,728 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:43:18,728 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:43:18,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:43:18,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:43:18,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:43:18,799 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:43:18,800 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:43:18,801 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label17_true-unreach-call.c [2018-11-07 03:43:18,879 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89e023551/7f5efd38b7a54d59a8f5a0ff5aff2cde/FLAG5aac4dd75 [2018-11-07 03:43:19,571 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:43:19,572 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label17_true-unreach-call.c [2018-11-07 03:43:19,598 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89e023551/7f5efd38b7a54d59a8f5a0ff5aff2cde/FLAG5aac4dd75 [2018-11-07 03:43:19,616 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89e023551/7f5efd38b7a54d59a8f5a0ff5aff2cde [2018-11-07 03:43:19,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:43:19,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:43:19,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:43:19,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:43:19,640 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:43:19,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:43:19" (1/1) ... [2018-11-07 03:43:19,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2ccaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:19, skipping insertion in model container [2018-11-07 03:43:19,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:43:19" (1/1) ... [2018-11-07 03:43:19,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:43:19,754 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:43:20,638 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:43:20,644 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:43:20,933 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:43:20,953 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:43:20,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20 WrapperNode [2018-11-07 03:43:20,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:43:20,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:43:20,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:43:20,956 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:43:20,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:43:21,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:43:21,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:43:21,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:43:21,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (1/1) ... [2018-11-07 03:43:21,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:43:21,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:43:21,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:43:21,324 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:43:21,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (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 03:43:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:43:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:43:21,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:43:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:43:21,405 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:43:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:43:21,405 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:43:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:43:21,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:43:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:43:21,407 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:43:28,790 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:43:28,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:43:28 BoogieIcfgContainer [2018-11-07 03:43:28,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:43:28,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:43:28,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:43:28,796 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:43:28,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:43:19" (1/3) ... [2018-11-07 03:43:28,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7768eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:43:28, skipping insertion in model container [2018-11-07 03:43:28,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:43:20" (2/3) ... [2018-11-07 03:43:28,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7768eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:43:28, skipping insertion in model container [2018-11-07 03:43:28,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:43:28" (3/3) ... [2018-11-07 03:43:28,799 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label17_true-unreach-call.c [2018-11-07 03:43:28,809 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:43:28,818 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:43:28,833 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:43:28,875 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:43:28,875 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:43:28,876 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:43:28,876 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:43:28,876 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:43:28,876 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:43:28,876 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:43:28,877 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:43:28,913 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 03:43:28,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-07 03:43:28,923 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:43:28,925 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] [2018-11-07 03:43:28,927 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:43:28,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:43:28,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1724248043, now seen corresponding path program 1 times [2018-11-07 03:43:28,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:43:28,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:28,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:43:28,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:28,988 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:43:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:43:29,445 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:43:29,552 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 03:43:29,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:43:29,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:43:29,556 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:43:29,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:43:29,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:43:29,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:43:29,583 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 03:43:33,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:43:33,083 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 03:43:33,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:43:33,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2018-11-07 03:43:33,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:43:33,114 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 03:43:33,114 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 03:43:33,124 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 03:43:33,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 03:43:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 03:43:33,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 03:43:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-11-07 03:43:33,265 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 65 [2018-11-07 03:43:33,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:43:33,266 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-11-07 03:43:33,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:43:33,266 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-11-07 03:43:33,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-07 03:43:33,281 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:43:33,282 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, 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 03:43:33,282 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:43:33,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:43:33,284 INFO L82 PathProgramCache]: Analyzing trace with hash 735694757, now seen corresponding path program 1 times [2018-11-07 03:43:33,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:43:33,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:33,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:43:33,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:33,287 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:43:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:43:33,588 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:43:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:43:33,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:43:33,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:43:33,706 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:43:33,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:43:33,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:43:33,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:43:33,710 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 6 states. [2018-11-07 03:43:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:43:39,824 INFO L93 Difference]: Finished difference Result 2191 states and 4077 transitions. [2018-11-07 03:43:39,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:43:39,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-11-07 03:43:39,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:43:39,840 INFO L225 Difference]: With dead ends: 2191 [2018-11-07 03:43:39,840 INFO L226 Difference]: Without dead ends: 1453 [2018-11-07 03:43:39,844 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:43:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2018-11-07 03:43:39,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1436. [2018-11-07 03:43:39,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-11-07 03:43:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2556 transitions. [2018-11-07 03:43:39,937 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2556 transitions. Word has length 136 [2018-11-07 03:43:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:43:39,938 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 2556 transitions. [2018-11-07 03:43:39,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:43:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2556 transitions. [2018-11-07 03:43:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-07 03:43:39,949 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:43:39,950 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, 1, 1, 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 03:43:39,950 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:43:39,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:43:39,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1598709869, now seen corresponding path program 1 times [2018-11-07 03:43:39,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:43:39,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:39,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:43:39,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:39,955 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:43:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:43:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:43:40,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:43:40,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:43:40,213 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:43:40,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:43:40,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:43:40,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:43:40,215 INFO L87 Difference]: Start difference. First operand 1436 states and 2556 transitions. Second operand 6 states. [2018-11-07 03:43:44,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:43:44,799 INFO L93 Difference]: Finished difference Result 3925 states and 7037 transitions. [2018-11-07 03:43:44,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:43:44,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-11-07 03:43:44,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:43:44,816 INFO L225 Difference]: With dead ends: 3925 [2018-11-07 03:43:44,816 INFO L226 Difference]: Without dead ends: 2495 [2018-11-07 03:43:44,825 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 [2018-11-07 03:43:44,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2018-11-07 03:43:44,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2466. [2018-11-07 03:43:44,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2466 states. [2018-11-07 03:43:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 4043 transitions. [2018-11-07 03:43:44,908 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 4043 transitions. Word has length 140 [2018-11-07 03:43:44,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:43:44,909 INFO L480 AbstractCegarLoop]: Abstraction has 2466 states and 4043 transitions. [2018-11-07 03:43:44,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:43:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 4043 transitions. [2018-11-07 03:43:44,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-07 03:43:44,912 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:43:44,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:44,913 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:43:44,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:43:44,914 INFO L82 PathProgramCache]: Analyzing trace with hash -901457180, now seen corresponding path program 1 times [2018-11-07 03:43:44,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:43:44,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:44,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:43:44,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:44,915 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:43:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:43:45,249 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:43:45,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:43:45,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:43:45,250 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:43:45,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:43:45,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:43:45,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:43:45,251 INFO L87 Difference]: Start difference. First operand 2466 states and 4043 transitions. Second operand 6 states. [2018-11-07 03:43:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:43:49,346 INFO L93 Difference]: Finished difference Result 6987 states and 11546 transitions. [2018-11-07 03:43:49,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:43:49,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2018-11-07 03:43:49,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:43:49,379 INFO L225 Difference]: With dead ends: 6987 [2018-11-07 03:43:49,380 INFO L226 Difference]: Without dead ends: 4527 [2018-11-07 03:43:49,399 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:43:49,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2018-11-07 03:43:49,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4495. [2018-11-07 03:43:49,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4495 states. [2018-11-07 03:43:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4495 states to 4495 states and 6547 transitions. [2018-11-07 03:43:49,519 INFO L78 Accepts]: Start accepts. Automaton has 4495 states and 6547 transitions. Word has length 171 [2018-11-07 03:43:49,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:43:49,520 INFO L480 AbstractCegarLoop]: Abstraction has 4495 states and 6547 transitions. [2018-11-07 03:43:49,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:43:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4495 states and 6547 transitions. [2018-11-07 03:43:49,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-11-07 03:43:49,526 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:43:49,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:49,527 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:43:49,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:43:49,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1025094140, now seen corresponding path program 1 times [2018-11-07 03:43:49,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:43:49,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:49,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:43:49,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:49,529 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:43:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:43:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:43:49,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:43:49,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:43:49,826 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:43:49,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:43:49,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:43:49,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:43:49,828 INFO L87 Difference]: Start difference. First operand 4495 states and 6547 transitions. Second operand 6 states. [2018-11-07 03:43:55,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:43:55,632 INFO L93 Difference]: Finished difference Result 17056 states and 26327 transitions. [2018-11-07 03:43:55,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:43:55,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 215 [2018-11-07 03:43:55,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:43:55,730 INFO L225 Difference]: With dead ends: 17056 [2018-11-07 03:43:55,730 INFO L226 Difference]: Without dead ends: 12567 [2018-11-07 03:43:55,791 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:43:55,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12567 states. [2018-11-07 03:43:56,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12567 to 12560. [2018-11-07 03:43:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12560 states. [2018-11-07 03:43:56,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12560 states to 12560 states and 17998 transitions. [2018-11-07 03:43:56,166 INFO L78 Accepts]: Start accepts. Automaton has 12560 states and 17998 transitions. Word has length 215 [2018-11-07 03:43:56,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:43:56,167 INFO L480 AbstractCegarLoop]: Abstraction has 12560 states and 17998 transitions. [2018-11-07 03:43:56,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:43:56,167 INFO L276 IsEmpty]: Start isEmpty. Operand 12560 states and 17998 transitions. [2018-11-07 03:43:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-11-07 03:43:56,197 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:43:56,197 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:56,198 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:43:56,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:43:56,198 INFO L82 PathProgramCache]: Analyzing trace with hash 473724549, now seen corresponding path program 1 times [2018-11-07 03:43:56,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:43:56,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:56,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:43:56,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:43:56,200 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:43:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:43:56,464 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:43:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 116 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 03:43:56,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:43:56,726 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:43:56,727 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 298 with the following transitions: [2018-11-07 03:43:56,729 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [599], [601], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [720], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [992], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:43:56,817 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:43:56,818 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:44:00,822 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:44:00,824 INFO L272 AbstractInterpreter]: Visited 155 different actions 155 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 03:44:00,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:44:00,858 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:44:03,224 INFO L227 lantSequenceWeakener]: Weakened 289 states. On average, predicates are now at 78.08% of their original sizes. [2018-11-07 03:44:03,224 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:44:03,597 INFO L415 sIntCurrentIteration]: We unified 296 AI predicates to 296 [2018-11-07 03:44:03,597 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:44:03,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:44:03,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-07 03:44:03,598 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:44:03,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 03:44:03,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 03:44:03,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:44:03,600 INFO L87 Difference]: Start difference. First operand 12560 states and 17998 transitions. Second operand 8 states. [2018-11-07 03:44:06,288 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:45:08,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:45:08,587 INFO L93 Difference]: Finished difference Result 25454 states and 36454 transitions. [2018-11-07 03:45:08,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 03:45:08,587 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 297 [2018-11-07 03:45:08,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:45:08,675 INFO L225 Difference]: With dead ends: 25454 [2018-11-07 03:45:08,675 INFO L226 Difference]: Without dead ends: 12900 [2018-11-07 03:45:08,733 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:45:08,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12900 states. [2018-11-07 03:45:09,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12900 to 12898. [2018-11-07 03:45:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12898 states. [2018-11-07 03:45:09,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12898 states to 12898 states and 18346 transitions. [2018-11-07 03:45:09,084 INFO L78 Accepts]: Start accepts. Automaton has 12898 states and 18346 transitions. Word has length 297 [2018-11-07 03:45:09,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:45:09,084 INFO L480 AbstractCegarLoop]: Abstraction has 12898 states and 18346 transitions. [2018-11-07 03:45:09,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 03:45:09,085 INFO L276 IsEmpty]: Start isEmpty. Operand 12898 states and 18346 transitions. [2018-11-07 03:45:09,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-11-07 03:45:09,106 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:45:09,106 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:45:09,107 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:45:09,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:45:09,107 INFO L82 PathProgramCache]: Analyzing trace with hash 2137201209, now seen corresponding path program 1 times [2018-11-07 03:45:09,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:45:09,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:45:09,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:45:09,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:45:09,109 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:45:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:45:09,447 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:45:09,944 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 117 proven. 22 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-07 03:45:09,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:45:09,944 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:45:09,945 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 308 with the following transitions: [2018-11-07 03:45:09,946 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [599], [601], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [992], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:45:09,957 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:45:09,957 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:45:11,175 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:45:27,543 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:45:27,543 INFO L272 AbstractInterpreter]: Visited 158 different actions 613 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:45:27,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:45:27,583 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:45:30,573 INFO L227 lantSequenceWeakener]: Weakened 84 states. On average, predicates are now at 80.54% of their original sizes. [2018-11-07 03:45:30,573 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:46:00,465 INFO L415 sIntCurrentIteration]: We unified 306 AI predicates to 306 [2018-11-07 03:46:00,465 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:46:00,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:46:00,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-07 03:46:00,466 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:46:00,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-07 03:46:00,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-07 03:46:00,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2018-11-07 03:46:00,467 INFO L87 Difference]: Start difference. First operand 12898 states and 18346 transitions. Second operand 23 states. Received shutdown request... [2018-11-07 03:47:02,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 03:47:02,908 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:47:02,913 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:47:02,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:47:02 BoogieIcfgContainer [2018-11-07 03:47:02,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:47:02,915 INFO L168 Benchmark]: Toolchain (without parser) took 223284.32 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-07 03:47:02,916 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:47:02,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1321.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-07 03:47:02,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 211.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -853.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:47:02,918 INFO L168 Benchmark]: Boogie Preprocessor took 156.08 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:47:02,919 INFO L168 Benchmark]: RCFGBuilder took 7467.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 259.7 MB). Peak memory consumption was 259.7 MB. Max. memory is 7.1 GB. [2018-11-07 03:47:02,920 INFO L168 Benchmark]: TraceAbstraction took 214121.99 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -588.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 03:47:02,925 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1321.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 211.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -853.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.08 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 7467.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 259.7 MB). Peak memory consumption was 259.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214121.99 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -588.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 181]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 181). Cancelled while BasicCegarLoop was constructing difference of abstraction (12898states) and FLOYD_HOARE automaton (currently 15 states, 23 states before enhancement),while ReachableStatesComputation was computing reachable states (213 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 214.0s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 151.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 939 SDtfs, 8165 SDslu, 937 SDs, 0 SdLazy, 14219 SolverSat, 3219 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 655 GetRequests, 550 SyntacticMatches, 41 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 33.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12898occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 21.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9963647744234194 AbsIntWeakeningRatio, 0.08637873754152824 AbsIntAvgWeakeningVarsNumRemoved, 650.7342192691029 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 87 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1331 NumberOfCodeBlocks, 1331 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1324 ConstructedInterpolants, 0 QuantifiedInterpolants, 1139381 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 539/638 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown