java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:15:53,767 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:15:53,769 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:15:53,782 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:15:53,782 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:15:53,783 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:15:53,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:15:53,786 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:15:53,788 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:15:53,789 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:15:53,790 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:15:53,790 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:15:53,791 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:15:53,792 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:15:53,795 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:15:53,803 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:15:53,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:15:53,808 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:15:53,814 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:15:53,815 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:15:53,819 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:15:53,820 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:15:53,822 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 20:15:53,832 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:15:53,832 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:15:53,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:15:53,836 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:15:53,836 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 20:15:53,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:15:53,870 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:15:53,871 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:15:53,871 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:15:53,874 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:15:53,874 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:15:53,874 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:15:53,876 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:15:53,876 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:15:53,876 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:15:53,876 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:15:53,877 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:15:53,877 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:15:53,878 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:15:53,878 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:15:53,878 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:15:53,878 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:15:53,878 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:15:53,878 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:15:53,879 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:15:53,879 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:15:53,879 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:15:53,881 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:15:53,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:15:53,882 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:15:53,882 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:15:53,882 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:15:53,883 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:15:53,883 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:15:53,883 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:15:53,883 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:15:53,883 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:15:53,883 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:15:53,947 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:15:53,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:15:53,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:15:53,974 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:15:53,975 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:15:53,975 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-07-23 20:15:54,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a1662aa/4cb9a9d74a4c4dd9a579696bc405b072/FLAG9ecbb172f [2018-07-23 20:15:54,659 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:15:54,660 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08_true-unreach-call_false-termination.c [2018-07-23 20:15:54,678 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a1662aa/4cb9a9d74a4c4dd9a579696bc405b072/FLAG9ecbb172f [2018-07-23 20:15:54,694 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a1662aa/4cb9a9d74a4c4dd9a579696bc405b072 [2018-07-23 20:15:54,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:15:54,709 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:15:54,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:15:54,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:15:54,717 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:15:54,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:15:54" (1/1) ... [2018-07-23 20:15:54,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4d8e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:54, skipping insertion in model container [2018-07-23 20:15:54,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:15:54" (1/1) ... [2018-07-23 20:15:54,934 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:15:55,204 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:15:55,222 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:15:55,383 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:15:55,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55 WrapperNode [2018-07-23 20:15:55,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:15:55,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:15:55,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:15:55,431 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:15:55,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:15:55,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:15:55,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:15:55,541 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:15:55,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (1/1) ... [2018-07-23 20:15:55,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:15:55,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:15:55,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:15:55,823 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:15:55,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (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 [2018-07-23 20:15:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 20:15:55,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 20:15:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:15:55,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:15:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:15:55,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:15:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:15:55,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:15:59,584 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:15:59,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:15:59 BoogieIcfgContainer [2018-07-23 20:15:59,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:15:59,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:15:59,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:15:59,594 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:15:59,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:15:54" (1/3) ... [2018-07-23 20:15:59,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1e97d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:15:59, skipping insertion in model container [2018-07-23 20:15:59,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:15:55" (2/3) ... [2018-07-23 20:15:59,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1e97d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:15:59, skipping insertion in model container [2018-07-23 20:15:59,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:15:59" (3/3) ... [2018-07-23 20:15:59,600 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label08_true-unreach-call_false-termination.c [2018-07-23 20:15:59,614 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:15:59,634 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:15:59,706 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:15:59,707 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:15:59,708 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:15:59,708 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:15:59,708 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:15:59,708 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:15:59,708 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:15:59,709 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:15:59,709 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:15:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-07-23 20:15:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-23 20:15:59,758 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:15:59,759 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:15:59,760 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:15:59,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1201390040, now seen corresponding path program 1 times [2018-07-23 20:15:59,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:15:59,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:15:59,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:15:59,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:15:59,826 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:15:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:16:00,467 WARN L169 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:16:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:16:00,544 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:16:00,544 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:16:00,544 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:16:00,551 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:16:00,567 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:16:00,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:16:00,571 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-07-23 20:16:02,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:16:02,419 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-07-23 20:16:02,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:16:02,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2018-07-23 20:16:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:16:02,440 INFO L225 Difference]: With dead ends: 550 [2018-07-23 20:16:02,440 INFO L226 Difference]: Without dead ends: 340 [2018-07-23 20:16:02,447 INFO L573 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 [2018-07-23 20:16:02,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-23 20:16:02,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-07-23 20:16:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-07-23 20:16:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 541 transitions. [2018-07-23 20:16:02,530 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 541 transitions. Word has length 120 [2018-07-23 20:16:02,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:16:02,531 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 541 transitions. [2018-07-23 20:16:02,531 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:16:02,531 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 541 transitions. [2018-07-23 20:16:02,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 20:16:02,540 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:16:02,540 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:16:02,541 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:16:02,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1573953925, now seen corresponding path program 1 times [2018-07-23 20:16:02,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:16:02,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:02,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:16:02,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:02,543 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:16:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:16:02,818 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:16:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:16:03,004 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:16:03,004 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:16:03,004 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:16:03,006 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:16:03,007 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:16:03,007 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:16:03,007 INFO L87 Difference]: Start difference. First operand 340 states and 541 transitions. Second operand 6 states. [2018-07-23 20:16:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:16:05,154 INFO L93 Difference]: Finished difference Result 1075 states and 1784 transitions. [2018-07-23 20:16:05,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:16:05,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-07-23 20:16:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:16:05,169 INFO L225 Difference]: With dead ends: 1075 [2018-07-23 20:16:05,170 INFO L226 Difference]: Without dead ends: 741 [2018-07-23 20:16:05,174 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:16:05,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-07-23 20:16:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-07-23 20:16:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-07-23 20:16:05,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1120 transitions. [2018-07-23 20:16:05,245 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1120 transitions. Word has length 131 [2018-07-23 20:16:05,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:16:05,245 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1120 transitions. [2018-07-23 20:16:05,246 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:16:05,246 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1120 transitions. [2018-07-23 20:16:05,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-23 20:16:05,252 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:16:05,253 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:16:05,253 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:16:05,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1519580315, now seen corresponding path program 1 times [2018-07-23 20:16:05,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:16:05,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:05,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:16:05,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:05,256 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:16:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:16:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:16:05,659 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:16:05,659 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 20:16:05,659 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:16:05,660 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 20:16:05,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 20:16:05,661 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:16:05,661 INFO L87 Difference]: Start difference. First operand 724 states and 1120 transitions. Second operand 5 states. [2018-07-23 20:16:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:16:07,976 INFO L93 Difference]: Finished difference Result 1578 states and 2483 transitions. [2018-07-23 20:16:07,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:16:07,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-07-23 20:16:07,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:16:07,985 INFO L225 Difference]: With dead ends: 1578 [2018-07-23 20:16:07,985 INFO L226 Difference]: Without dead ends: 721 [2018-07-23 20:16:07,988 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:16:07,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2018-07-23 20:16:08,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2018-07-23 20:16:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2018-07-23 20:16:08,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1044 transitions. [2018-07-23 20:16:08,033 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1044 transitions. Word has length 132 [2018-07-23 20:16:08,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:16:08,033 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1044 transitions. [2018-07-23 20:16:08,037 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 20:16:08,037 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1044 transitions. [2018-07-23 20:16:08,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-23 20:16:08,041 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:16:08,042 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:16:08,042 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:16:08,044 INFO L82 PathProgramCache]: Analyzing trace with hash 8483603, now seen corresponding path program 1 times [2018-07-23 20:16:08,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:16:08,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:08,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:16:08,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:08,046 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:16:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:16:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:16:08,338 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:16:08,338 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 20:16:08,338 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:16:08,339 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 20:16:08,339 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 20:16:08,339 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:16:08,340 INFO L87 Difference]: Start difference. First operand 721 states and 1044 transitions. Second operand 4 states. [2018-07-23 20:16:10,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:16:10,401 INFO L93 Difference]: Finished difference Result 1708 states and 2510 transitions. [2018-07-23 20:16:10,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:16:10,405 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2018-07-23 20:16:10,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:16:10,411 INFO L225 Difference]: With dead ends: 1708 [2018-07-23 20:16:10,411 INFO L226 Difference]: Without dead ends: 993 [2018-07-23 20:16:10,415 INFO L573 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 [2018-07-23 20:16:10,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2018-07-23 20:16:10,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2018-07-23 20:16:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2018-07-23 20:16:10,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1361 transitions. [2018-07-23 20:16:10,444 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1361 transitions. Word has length 136 [2018-07-23 20:16:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:16:10,444 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1361 transitions. [2018-07-23 20:16:10,445 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 20:16:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1361 transitions. [2018-07-23 20:16:10,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-23 20:16:10,450 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:16:10,450 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-23 20:16:10,450 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:16:10,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1200968691, now seen corresponding path program 1 times [2018-07-23 20:16:10,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:16:10,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:10,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:16:10,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:10,452 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:16:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:16:10,760 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:16:10,840 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 72 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-23 20:16:10,841 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:16:10,841 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:16:10,842 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-07-23 20:16:10,844 INFO L201 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [31], [32], [36], [40], [44], [47], [48], [52], [56], [60], [64], [68], [71], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [455], [463], [471], [479], [487], [495], [503], [511], [519], [527], [535], [543], [551], [559], [567], [575], [583], [591], [595], [597], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-23 20:16:10,922 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:16:10,923 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:16:30,127 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:16:30,129 INFO L272 AbstractInterpreter]: Visited 70 different actions 70 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-07-23 20:16:30,141 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:16:34,316 INFO L232 lantSequenceWeakener]: Weakened 119 states. On average, predicates are now at 79.88% of their original sizes. [2018-07-23 20:16:34,317 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:16:35,716 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:16:35,717 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:16:35,717 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-07-23 20:16:35,718 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:16:35,718 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 20:16:35,718 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 20:16:35,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-07-23 20:16:35,719 INFO L87 Difference]: Start difference. First operand 993 states and 1361 transitions. Second operand 12 states. [2018-07-23 20:16:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:16:43,491 INFO L93 Difference]: Finished difference Result 2041 states and 2796 transitions. [2018-07-23 20:16:43,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 20:16:43,492 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 182 [2018-07-23 20:16:43,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:16:43,498 INFO L225 Difference]: With dead ends: 2041 [2018-07-23 20:16:43,499 INFO L226 Difference]: Without dead ends: 1054 [2018-07-23 20:16:43,503 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-07-23 20:16:43,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2018-07-23 20:16:43,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2018-07-23 20:16:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2018-07-23 20:16:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1427 transitions. [2018-07-23 20:16:43,539 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1427 transitions. Word has length 182 [2018-07-23 20:16:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:16:43,540 INFO L471 AbstractCegarLoop]: Abstraction has 1054 states and 1427 transitions. [2018-07-23 20:16:43,540 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 20:16:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1427 transitions. [2018-07-23 20:16:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-23 20:16:43,545 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:16:43,545 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:16:43,546 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:16:43,546 INFO L82 PathProgramCache]: Analyzing trace with hash -633446802, now seen corresponding path program 1 times [2018-07-23 20:16:43,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:16:43,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:43,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:16:43,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:16:43,548 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:16:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:16:43,932 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 90 proven. 41 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-23 20:16:43,933 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:16:43,933 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:16:43,933 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 192 with the following transitions: [2018-07-23 20:16:43,934 INFO L201 CegarAbsIntRunner]: [0], [3], [4], [8], [12], [16], [20], [24], [28], [31], [32], [36], [40], [44], [47], [48], [52], [56], [60], [64], [68], [71], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [455], [463], [471], [479], [487], [495], [503], [511], [519], [527], [535], [543], [551], [559], [567], [575], [583], [591], [595], [597], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-23 20:16:43,940 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:16:43,941 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:18:36,145 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:18:36,145 INFO L272 AbstractInterpreter]: Visited 126 different actions 194 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-07-23 20:18:36,165 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:18:51,501 INFO L232 lantSequenceWeakener]: Weakened 189 states. On average, predicates are now at 80.55% of their original sizes. [2018-07-23 20:18:51,502 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:18:54,854 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:18:54,854 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:18:54,854 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [9] total 26 [2018-07-23 20:18:54,855 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:18:54,855 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 20:18:54,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 20:18:54,856 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-07-23 20:18:54,856 INFO L87 Difference]: Start difference. First operand 1054 states and 1427 transitions. Second operand 19 states. [2018-07-23 20:19:33,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:19:33,177 INFO L93 Difference]: Finished difference Result 2186 states and 2954 transitions. [2018-07-23 20:19:33,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 20:19:33,177 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 191 [2018-07-23 20:19:33,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:19:33,183 INFO L225 Difference]: With dead ends: 2186 [2018-07-23 20:19:33,184 INFO L226 Difference]: Without dead ends: 1199 [2018-07-23 20:19:33,188 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 20:19:33,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2018-07-23 20:19:33,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1192. [2018-07-23 20:19:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2018-07-23 20:19:33,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1569 transitions. [2018-07-23 20:19:33,229 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1569 transitions. Word has length 191 [2018-07-23 20:19:33,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:19:33,230 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1569 transitions. [2018-07-23 20:19:33,230 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 20:19:33,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1569 transitions. [2018-07-23 20:19:33,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-07-23 20:19:33,236 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:19:33,236 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-23 20:19:33,237 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:19:33,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1093421729, now seen corresponding path program 1 times [2018-07-23 20:19:33,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:19:33,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:19:33,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:19:33,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:19:33,238 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:19:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:19:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 94 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-23 20:19:33,454 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:19:33,454 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:19:33,454 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-07-23 20:19:33,454 INFO L201 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [31], [32], [36], [40], [44], [48], [52], [56], [60], [64], [68], [71], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [135], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [176], [180], [184], [188], [192], [196], [200], [204], [208], [212], [216], [220], [224], [228], [232], [236], [240], [244], [248], [252], [256], [260], [264], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [407], [415], [423], [431], [439], [447], [455], [463], [471], [479], [487], [495], [503], [511], [519], [527], [535], [543], [551], [559], [567], [575], [583], [591], [595], [597], [755], [756], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-07-23 20:19:33,461 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:19:33,462 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 20:20:11,379 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 20:20:11,381 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 20:20:11,382 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 20:20:11,382 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:20:11,382 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 20:20:11,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:20:11,392 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 20:20:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:20:11,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 20:20:11,590 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 20:20:11,792 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 20:20:11,793 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 20:20:11,799 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 20:20:11,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 08:20:11 BoogieIcfgContainer [2018-07-23 20:20:11,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 20:20:11,801 INFO L168 Benchmark]: Toolchain (without parser) took 257093.52 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -286.2 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-07-23 20:20:11,802 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:20:11,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.53 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:20:11,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 20:20:11,804 INFO L168 Benchmark]: Boogie Preprocessor took 281.41 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 737.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -852.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2018-07-23 20:20:11,805 INFO L168 Benchmark]: RCFGBuilder took 3764.72 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 123.5 MB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-07-23 20:20:11,806 INFO L168 Benchmark]: TraceAbstraction took 252210.84 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 400.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-23 20:20:11,811 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.53 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 109.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 281.41 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 737.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -852.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3764.72 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 123.5 MB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252210.84 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 400.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 515]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 515). Cancelled while BasicCegarLoop was analyzing trace of length 205 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 252.1s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 54.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 837 SDtfs, 2860 SDslu, 951 SDs, 0 SdLazy, 4025 SolverSat, 691 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 424 GetRequests, 356 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1192occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 169.4s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9944495055270162 AbsIntWeakeningRatio, 0.2371967654986523 AbsIntAvgWeakeningVarsNumRemoved, 1044.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 892 NumberOfCodeBlocks, 892 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 886 ConstructedInterpolants, 0 QuantifiedInterpolants, 581737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 217/273 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label08_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-20-11-827.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label08_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_20-20-11-827.csv Completed graceful shutdown