java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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/Problem11_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:12:21,782 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:12:21,787 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:12:21,802 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:12:21,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:12:21,804 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:12:21,805 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:12:21,807 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:12:21,808 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:12:21,809 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:12:21,810 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:12:21,810 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:12:21,811 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:12:21,812 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:12:21,813 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:12:21,814 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:12:21,815 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:12:21,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:12:21,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:12:21,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:12:21,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:12:21,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:12:21,826 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:12:21,835 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:12:21,865 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:12:21,865 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:12:21,869 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:12:21,870 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:12:21,870 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:12:21,870 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:12:21,870 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:12:21,870 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:12:21,871 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:12:21,871 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:12:21,871 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:12:21,871 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:12:21,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:12:21,873 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:12:21,873 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:12:21,873 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:12:21,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:12:21,873 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:12:21,873 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:12:21,874 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:12:21,874 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:12:21,874 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:12:21,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:12:21,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:12:21,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:12:21,877 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:12:21,877 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:12:21,877 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:12:21,877 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:12:21,877 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:12:21,878 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:12:21,878 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:12:21,878 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:12:21,878 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:12:21,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:12:21,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:12:21,968 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:12:21,971 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:12:21,971 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:12:21,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label37_true-unreach-call.c [2018-10-24 21:12:22,044 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5690e74a3/4e9b11aec1574f5cb1dab588a5ce6964/FLAG2917de3f3 [2018-10-24 21:12:22,628 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:12:22,629 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label37_true-unreach-call.c [2018-10-24 21:12:22,643 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5690e74a3/4e9b11aec1574f5cb1dab588a5ce6964/FLAG2917de3f3 [2018-10-24 21:12:22,659 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5690e74a3/4e9b11aec1574f5cb1dab588a5ce6964 [2018-10-24 21:12:22,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:12:22,673 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:12:22,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:12:22,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:12:22,683 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:12:22,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:12:22" (1/1) ... [2018-10-24 21:12:22,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5722cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:22, skipping insertion in model container [2018-10-24 21:12:22,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:12:22" (1/1) ... [2018-10-24 21:12:22,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:12:22,782 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:12:23,383 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:12:23,393 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:12:23,603 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:12:23,625 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:12:23,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23 WrapperNode [2018-10-24 21:12:23,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:12:23,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:12:23,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:12:23,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:12:23,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:23,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:23,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:12:23,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:12:23,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:12:23,901 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:12:23,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:23,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:23,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:23,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:23,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:23,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:24,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... [2018-10-24 21:12:24,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:12:24,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:12:24,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:12:24,053 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:12:24,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 21:12:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:12:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:12:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:12:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:12:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:12:24,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:12:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:12:24,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:12:28,820 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:12:28,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:12:28 BoogieIcfgContainer [2018-10-24 21:12:28,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:12:28,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:12:28,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:12:28,826 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:12:28,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:12:22" (1/3) ... [2018-10-24 21:12:28,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772fbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:12:28, skipping insertion in model container [2018-10-24 21:12:28,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:12:23" (2/3) ... [2018-10-24 21:12:28,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772fbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:12:28, skipping insertion in model container [2018-10-24 21:12:28,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:12:28" (3/3) ... [2018-10-24 21:12:28,831 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label37_true-unreach-call.c [2018-10-24 21:12:28,840 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:12:28,849 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:12:28,868 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:12:28,908 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:12:28,909 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:12:28,909 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:12:28,909 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:12:28,910 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:12:28,910 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:12:28,910 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:12:28,910 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:12:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:12:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-24 21:12:28,951 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:28,952 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] [2018-10-24 21:12:28,955 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:28,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:28,962 INFO L82 PathProgramCache]: Analyzing trace with hash -792813748, now seen corresponding path program 1 times [2018-10-24 21:12:28,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:29,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:29,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:29,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:29,026 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:29,465 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 21:12:29,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:12:29,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:12:29,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:12:29,491 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:29,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:12:29,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:12:29,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:12:29,521 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 21:12:33,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:12:33,138 INFO L93 Difference]: Finished difference Result 998 states and 1780 transitions. [2018-10-24 21:12:33,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:12:33,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-10-24 21:12:33,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:12:33,165 INFO L225 Difference]: With dead ends: 998 [2018-10-24 21:12:33,165 INFO L226 Difference]: Without dead ends: 699 [2018-10-24 21:12:33,175 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:12:33,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2018-10-24 21:12:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 693. [2018-10-24 21:12:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2018-10-24 21:12:33,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1109 transitions. [2018-10-24 21:12:33,278 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1109 transitions. Word has length 56 [2018-10-24 21:12:33,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:12:33,279 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1109 transitions. [2018-10-24 21:12:33,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:12:33,279 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1109 transitions. [2018-10-24 21:12:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 21:12:33,288 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:33,288 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:12:33,288 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:33,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:33,289 INFO L82 PathProgramCache]: Analyzing trace with hash -196930064, now seen corresponding path program 1 times [2018-10-24 21:12:33,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:33,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:33,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:33,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:33,291 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:12:33,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:12:33,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:12:33,620 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:33,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:12:33,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:12:33,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:12:33,623 INFO L87 Difference]: Start difference. First operand 693 states and 1109 transitions. Second operand 4 states. [2018-10-24 21:12:37,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:12:37,762 INFO L93 Difference]: Finished difference Result 2539 states and 4260 transitions. [2018-10-24 21:12:37,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:12:37,765 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2018-10-24 21:12:37,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:12:37,786 INFO L225 Difference]: With dead ends: 2539 [2018-10-24 21:12:37,786 INFO L226 Difference]: Without dead ends: 1852 [2018-10-24 21:12:37,795 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:12:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2018-10-24 21:12:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1835. [2018-10-24 21:12:37,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1835 states. [2018-10-24 21:12:37,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2814 transitions. [2018-10-24 21:12:37,902 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2814 transitions. Word has length 130 [2018-10-24 21:12:37,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:12:37,903 INFO L481 AbstractCegarLoop]: Abstraction has 1835 states and 2814 transitions. [2018-10-24 21:12:37,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:12:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2814 transitions. [2018-10-24 21:12:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-10-24 21:12:37,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:37,922 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:12:37,922 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:37,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:37,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1596026009, now seen corresponding path program 1 times [2018-10-24 21:12:37,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:37,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:37,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:37,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:37,924 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:38,514 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 98 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:12:38,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:12:38,515 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:12:38,516 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-10-24 21:12:38,518 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [349], [351], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [738], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:12:38,595 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:12:38,595 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:12:42,574 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:12:42,603 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:12:42,604 INFO L272 AbstractInterpreter]: Visited 129 different actions 129 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 21:12:42,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:42,650 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:12:46,074 INFO L232 lantSequenceWeakener]: Weakened 271 states. On average, predicates are now at 73.61% of their original sizes. [2018-10-24 21:12:46,075 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:12:46,598 INFO L413 sIntCurrentIteration]: We have 278 unified AI predicates [2018-10-24 21:12:46,598 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:12:46,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:12:46,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:12:46,600 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:46,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:12:46,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:12:46,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:12:46,601 INFO L87 Difference]: Start difference. First operand 1835 states and 2814 transitions. Second operand 7 states. [2018-10-24 21:13:12,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:13:12,105 INFO L93 Difference]: Finished difference Result 3856 states and 5888 transitions. [2018-10-24 21:13:12,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:13:12,105 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 279 [2018-10-24 21:13:12,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:13:12,119 INFO L225 Difference]: With dead ends: 3856 [2018-10-24 21:13:12,119 INFO L226 Difference]: Without dead ends: 2027 [2018-10-24 21:13:12,128 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 279 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:13:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2018-10-24 21:13:12,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 2025. [2018-10-24 21:13:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2025 states. [2018-10-24 21:13:12,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 3014 transitions. [2018-10-24 21:13:12,193 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 3014 transitions. Word has length 279 [2018-10-24 21:13:12,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:13:12,194 INFO L481 AbstractCegarLoop]: Abstraction has 2025 states and 3014 transitions. [2018-10-24 21:13:12,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:13:12,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 3014 transitions. [2018-10-24 21:13:12,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2018-10-24 21:13:12,209 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:13:12,210 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:13:12,210 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:13:12,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:12,211 INFO L82 PathProgramCache]: Analyzing trace with hash 25340317, now seen corresponding path program 1 times [2018-10-24 21:13:12,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:13:12,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:12,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:13:12,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:12,213 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:13:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:13:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-10-24 21:13:13,040 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:13:13,040 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:13:13,040 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 372 with the following transitions: [2018-10-24 21:13:13,041 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [349], [351], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [870], [874], [878], [889], [893], [897], [901], [905], [909], [913], [924], [928], [932], [936], [940], [944], [948], [952], [956], [959], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:13:13,051 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:13:13,051 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:13:16,763 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:14:53,686 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:14:53,686 INFO L272 AbstractInterpreter]: Visited 175 different actions 1029 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:14:53,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:14:53,694 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:15:00,678 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 82.69% of their original sizes. [2018-10-24 21:15:00,678 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 21:16:28,527 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:16:28,532 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:16:28,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:16:28 BoogieIcfgContainer [2018-10-24 21:16:28,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:16:28,534 INFO L168 Benchmark]: Toolchain (without parser) took 245862.25 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 925.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:28,535 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-24 21:16:28,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 951.97 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:28,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 273.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:28,538 INFO L168 Benchmark]: Boogie Preprocessor took 151.21 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. [2018-10-24 21:16:28,539 INFO L168 Benchmark]: RCFGBuilder took 4769.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 173.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:28,539 INFO L168 Benchmark]: TraceAbstraction took 239710.38 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -796.6 MB). Peak memory consumption was 765.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:16:28,545 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 951.97 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 273.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.21 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 4769.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 173.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239710.38 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -796.6 MB). Peak memory consumption was 765.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 153). Cancelled while BasicCegarLoop was analyzing trace of length 372 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 239.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 33.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 610 SDtfs, 1415 SDslu, 342 SDs, 0 SdLazy, 2322 SolverSat, 877 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 290 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2025occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 104.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.996889084852048 AbsIntWeakeningRatio, 0.08641975308641975 AbsIntAvgWeakeningVarsNumRemoved, 1181.3703703703704 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 465 NumberOfCodeBlocks, 465 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 328268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 152/246 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown