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/Problem01_label34_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 01:04:00,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 01:04:00,823 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 01:04:00,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 01:04:00,840 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 01:04:00,841 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 01:04:00,844 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 01:04:00,846 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 01:04:00,854 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 01:04:00,855 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 01:04:00,856 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 01:04:00,856 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 01:04:00,861 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 01:04:00,862 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 01:04:00,866 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 01:04:00,866 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 01:04:00,869 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 01:04:00,872 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 01:04:00,878 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 01:04:00,879 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 01:04:00,880 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 01:04:00,881 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 01:04:00,886 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 01:04:00,901 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 01:04:00,923 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 01:04:00,923 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 01:04:00,924 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 01:04:00,924 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 01:04:00,925 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 01:04:00,925 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 01:04:00,925 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 01:04:00,925 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 01:04:00,925 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 01:04:00,926 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 01:04:00,926 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 01:04:00,926 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 01:04:00,927 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 01:04:00,927 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 01:04:00,927 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 01:04:00,927 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 01:04:00,927 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 01:04:00,928 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 01:04:00,928 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 01:04:00,928 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 01:04:00,928 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 01:04:00,928 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 01:04:00,929 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 01:04:00,929 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 01:04:00,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 01:04:00,929 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 01:04:00,929 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 01:04:00,930 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 01:04:00,930 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 01:04:00,930 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 01:04:00,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 01:04:00,930 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 01:04:00,931 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 01:04:00,931 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 01:04:00,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 01:04:00,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 01:04:01,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 01:04:01,003 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 01:04:01,003 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 01:04:01,004 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c [2018-11-07 01:04:01,070 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe46d0894/b0de6c36a8254333b02c630413ee67db/FLAGb59ceb88e [2018-11-07 01:04:01,682 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 01:04:01,683 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label34_true-unreach-call_false-termination.c [2018-11-07 01:04:01,699 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe46d0894/b0de6c36a8254333b02c630413ee67db/FLAGb59ceb88e [2018-11-07 01:04:01,720 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe46d0894/b0de6c36a8254333b02c630413ee67db [2018-11-07 01:04:01,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 01:04:01,736 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 01:04:01,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 01:04:01,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 01:04:01,741 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 01:04:01,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:04:01" (1/1) ... [2018-11-07 01:04:01,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d73b804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:01, skipping insertion in model container [2018-11-07 01:04:01,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:04:01" (1/1) ... [2018-11-07 01:04:01,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 01:04:01,821 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 01:04:02,268 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:04:02,279 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 01:04:02,426 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:04:02,448 INFO L193 MainTranslator]: Completed translation [2018-11-07 01:04:02,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02 WrapperNode [2018-11-07 01:04:02,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 01:04:02,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 01:04:02,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 01:04:02,450 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 01:04:02,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 01:04:02,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 01:04:02,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 01:04:02,582 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 01:04:02,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (1/1) ... [2018-11-07 01:04:02,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 01:04:02,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 01:04:02,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 01:04:02,701 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 01:04:02,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (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 01:04:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 01:04:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 01:04:02,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 01:04:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 01:04:02,778 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 01:04:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 01:04:02,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 01:04:02,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 01:04:02,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 01:04:05,845 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 01:04:05,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:04:05 BoogieIcfgContainer [2018-11-07 01:04:05,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 01:04:05,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 01:04:05,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 01:04:05,851 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 01:04:05,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:04:01" (1/3) ... [2018-11-07 01:04:05,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486f34d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:04:05, skipping insertion in model container [2018-11-07 01:04:05,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:04:02" (2/3) ... [2018-11-07 01:04:05,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486f34d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:04:05, skipping insertion in model container [2018-11-07 01:04:05,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:04:05" (3/3) ... [2018-11-07 01:04:05,855 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label34_true-unreach-call_false-termination.c [2018-11-07 01:04:05,864 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 01:04:05,874 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 01:04:05,892 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 01:04:05,929 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 01:04:05,930 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 01:04:05,930 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 01:04:05,930 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 01:04:05,930 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 01:04:05,931 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 01:04:05,931 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 01:04:05,931 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 01:04:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-07 01:04:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-07 01:04:05,971 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:04:05,973 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:04:05,976 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:04:05,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:04:05,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1144269880, now seen corresponding path program 1 times [2018-11-07 01:04:05,983 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:04:06,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:04:06,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:04:06,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:04:06,040 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:04:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:04:06,622 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 01:04:06,751 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 01:04:06,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:04:06,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 01:04:06,754 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:04:06,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 01:04:06,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 01:04:06,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:04:06,779 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-07 01:04:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:04:08,462 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-07 01:04:08,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 01:04:08,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2018-11-07 01:04:08,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:04:08,482 INFO L225 Difference]: With dead ends: 550 [2018-11-07 01:04:08,483 INFO L226 Difference]: Without dead ends: 340 [2018-11-07 01:04:08,489 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 01:04:08,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-07 01:04:08,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-07 01:04:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-07 01:04:08,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-11-07 01:04:08,566 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 112 [2018-11-07 01:04:08,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:04:08,568 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-11-07 01:04:08,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 01:04:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-11-07 01:04:08,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-11-07 01:04:08,574 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:04:08,575 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 01:04:08,575 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:04:08,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:04:08,576 INFO L82 PathProgramCache]: Analyzing trace with hash -255516033, now seen corresponding path program 1 times [2018-11-07 01:04:08,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:04:08,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:04:08,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:04:08,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:04:08,578 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:04:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:04:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:04:08,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:04:08,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 01:04:08,756 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:04:08,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 01:04:08,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 01:04:08,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 01:04:08,759 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-11-07 01:04:10,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:04:10,773 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-11-07 01:04:10,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 01:04:10,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-11-07 01:04:10,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:04:10,783 INFO L225 Difference]: With dead ends: 1079 [2018-11-07 01:04:10,783 INFO L226 Difference]: Without dead ends: 745 [2018-11-07 01:04:10,787 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 01:04:10,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-11-07 01:04:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-11-07 01:04:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-11-07 01:04:10,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-11-07 01:04:10,853 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 122 [2018-11-07 01:04:10,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:04:10,853 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-11-07 01:04:10,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 01:04:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-11-07 01:04:10,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-07 01:04:10,861 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:04:10,861 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 01:04:10,861 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:04:10,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:04:10,862 INFO L82 PathProgramCache]: Analyzing trace with hash -289707029, now seen corresponding path program 1 times [2018-11-07 01:04:10,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:04:10,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:04:10,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:04:10,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:04:10,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:04:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:04:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:04:11,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:04:11,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 01:04:11,045 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:04:11,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 01:04:11,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 01:04:11,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:04:11,047 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 3 states. [2018-11-07 01:04:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:04:12,929 INFO L93 Difference]: Finished difference Result 1919 states and 3096 transitions. [2018-11-07 01:04:12,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 01:04:12,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2018-11-07 01:04:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:04:12,939 INFO L225 Difference]: With dead ends: 1919 [2018-11-07 01:04:12,939 INFO L226 Difference]: Without dead ends: 1192 [2018-11-07 01:04:12,943 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 01:04:12,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2018-11-07 01:04:12,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2018-11-07 01:04:12,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2018-11-07 01:04:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1735 transitions. [2018-11-07 01:04:12,989 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1735 transitions. Word has length 132 [2018-11-07 01:04:12,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:04:12,990 INFO L480 AbstractCegarLoop]: Abstraction has 1192 states and 1735 transitions. [2018-11-07 01:04:12,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 01:04:12,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1735 transitions. [2018-11-07 01:04:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-07 01:04:12,995 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:04:12,995 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-11-07 01:04:12,996 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:04:12,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:04:12,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1523382030, now seen corresponding path program 1 times [2018-11-07 01:04:12,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:04:12,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:04:12,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:04:12,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:04:12,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:04:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:04:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:04:13,264 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:04:13,264 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 01:04:13,265 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-11-07 01:04:13,268 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [533], [535], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-07 01:04:13,339 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 01:04:13,339 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 01:04:43,358 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 01:04:43,359 INFO L272 AbstractInterpreter]: Visited 116 different actions 181 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-07 01:04:43,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:04:43,372 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 01:04:51,120 INFO L227 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 83.75% of their original sizes. [2018-11-07 01:04:51,120 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 01:08:32,895 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 01:08:32,901 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 01:08:32,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:08:32 BoogieIcfgContainer [2018-11-07 01:08:32,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 01:08:32,903 INFO L168 Benchmark]: Toolchain (without parser) took 271167.95 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 605.8 MB. Max. memory is 7.1 GB. [2018-11-07 01:08:32,904 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:08:32,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 01:08:32,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -827.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-11-07 01:08:32,907 INFO L168 Benchmark]: Boogie Preprocessor took 118.61 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 01:08:32,907 INFO L168 Benchmark]: RCFGBuilder took 3145.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 101.5 MB). Peak memory consumption was 101.5 MB. Max. memory is 7.1 GB. [2018-11-07 01:08:32,908 INFO L168 Benchmark]: TraceAbstraction took 267054.31 ms. Allocated memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -580.7 MB). Peak memory consumption was 539.1 MB. Max. memory is 7.1 GB. [2018-11-07 01:08:32,913 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 132.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -827.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.61 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 3145.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 101.5 MB). Peak memory consumption was 101.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 267054.31 ms. Allocated memory was 2.3 GB in the beginning and 3.4 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -580.7 MB). Peak memory consumption was 539.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 491]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 491). Cancelled while BasicCegarLoop was analyzing trace of length 135 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 266.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 5.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 315 SDtfs, 1027 SDslu, 172 SDs, 0 SdLazy, 1633 SolverSat, 478 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1192occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 30.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9933457336721595 AbsIntWeakeningRatio, 0.2631578947368421 AbsIntAvgWeakeningVarsNumRemoved, 1514.9097744360902 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 363 ConstructedInterpolants, 0 QuantifiedInterpolants, 112830 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown