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/Problem10_label42_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:05:20,990 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:05:20,994 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:05:21,008 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:05:21,008 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:05:21,009 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:05:21,011 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:05:21,012 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:05:21,014 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:05:21,015 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:05:21,016 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:05:21,016 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:05:21,017 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:05:21,018 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:05:21,019 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:05:21,020 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:05:21,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:05:21,023 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:05:21,025 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:05:21,026 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:05:21,027 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:05:21,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:05:21,031 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 22:05:21,040 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 [2018-10-23 22:05:21,056 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:05:21,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:05:21,058 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:05:21,058 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:05:21,058 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:05:21,058 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:05:21,058 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:05:21,059 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:05:21,059 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:05:21,059 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:05:21,059 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:05:21,059 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:05:21,060 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:05:21,060 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:05:21,060 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:05:21,060 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:05:21,061 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:05:21,061 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:05:21,061 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:05:21,061 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:05:21,062 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:05:21,062 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:05:21,062 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:05:21,062 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:05:21,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:05:21,062 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:05:21,063 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:05:21,063 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:05:21,063 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:05:21,063 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:05:21,063 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:05:21,064 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:05:21,064 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:05:21,064 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:05:21,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:05:21,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:05:21,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:05:21,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:05:21,134 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:05:21,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label42_false-unreach-call.c [2018-10-23 22:05:21,199 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7bf64cf8b/607d341f46d54ce384ddee212445b743/FLAG058a83c2f [2018-10-23 22:05:21,796 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:05:21,797 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label42_false-unreach-call.c [2018-10-23 22:05:21,812 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7bf64cf8b/607d341f46d54ce384ddee212445b743/FLAG058a83c2f [2018-10-23 22:05:21,834 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7bf64cf8b/607d341f46d54ce384ddee212445b743 [2018-10-23 22:05:21,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:05:21,851 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:05:21,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:05:21,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:05:21,859 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:05:21,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:05:21" (1/1) ... [2018-10-23 22:05:21,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52590c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:21, skipping insertion in model container [2018-10-23 22:05:21,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:05:21" (1/1) ... [2018-10-23 22:05:21,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:05:21,931 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:05:22,379 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:05:22,384 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:05:22,522 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:05:22,549 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:05:22,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22 WrapperNode [2018-10-23 22:05:22,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:05:22,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:05:22,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:05:22,551 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:05:22,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:05:22,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:05:22,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:05:22,740 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:05:22,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (1/1) ... [2018-10-23 22:05:22,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:05:22,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:05:22,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:05:22,831 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:05:22,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (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 [2018-10-23 22:05:22,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:05:22,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:05:22,917 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:05:22,918 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:05:22,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:05:22,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:05:22,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:05:22,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:05:26,242 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:05:26,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:05:26 BoogieIcfgContainer [2018-10-23 22:05:26,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:05:26,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:05:26,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:05:26,251 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:05:26,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:05:21" (1/3) ... [2018-10-23 22:05:26,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559a2954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:05:26, skipping insertion in model container [2018-10-23 22:05:26,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:05:22" (2/3) ... [2018-10-23 22:05:26,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559a2954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:05:26, skipping insertion in model container [2018-10-23 22:05:26,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:05:26" (3/3) ... [2018-10-23 22:05:26,257 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label42_false-unreach-call.c [2018-10-23 22:05:26,268 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:05:26,283 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:05:26,301 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:05:26,344 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:05:26,344 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:05:26,344 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:05:26,345 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:05:26,345 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:05:26,345 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:05:26,345 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:05:26,346 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:05:26,375 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-23 22:05:26,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-23 22:05:26,383 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:05:26,385 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] [2018-10-23 22:05:26,387 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:05:26,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:26,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1002972724, now seen corresponding path program 1 times [2018-10-23 22:05:26,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:05:26,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:26,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:05:26,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:26,454 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:05:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:05:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:05:26,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:05:26,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:05:26,755 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:05:26,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:05:26,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:05:26,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:05:26,780 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-10-23 22:05:31,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:05:31,895 INFO L93 Difference]: Finished difference Result 737 states and 1298 transitions. [2018-10-23 22:05:31,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:05:31,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-10-23 22:05:31,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:05:31,921 INFO L225 Difference]: With dead ends: 737 [2018-10-23 22:05:31,921 INFO L226 Difference]: Without dead ends: 515 [2018-10-23 22:05:31,929 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 [2018-10-23 22:05:31,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-10-23 22:05:32,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2018-10-23 22:05:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2018-10-23 22:05:32,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 848 transitions. [2018-10-23 22:05:32,029 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 848 transitions. Word has length 24 [2018-10-23 22:05:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:05:32,030 INFO L481 AbstractCegarLoop]: Abstraction has 515 states and 848 transitions. [2018-10-23 22:05:32,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:05:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 848 transitions. [2018-10-23 22:05:32,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-23 22:05:32,040 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:05:32,041 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] [2018-10-23 22:05:32,041 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:05:32,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:32,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1186733907, now seen corresponding path program 1 times [2018-10-23 22:05:32,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:05:32,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:32,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:05:32,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:32,048 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:05:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:05:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:05:32,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:05:32,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:05:32,363 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:05:32,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:05:32,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:05:32,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:05:32,366 INFO L87 Difference]: Start difference. First operand 515 states and 848 transitions. Second operand 6 states. [2018-10-23 22:05:35,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:05:35,310 INFO L93 Difference]: Finished difference Result 1863 states and 3251 transitions. [2018-10-23 22:05:35,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:05:35,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-10-23 22:05:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:05:35,325 INFO L225 Difference]: With dead ends: 1863 [2018-10-23 22:05:35,326 INFO L226 Difference]: Without dead ends: 1354 [2018-10-23 22:05:35,334 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:05:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2018-10-23 22:05:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1331. [2018-10-23 22:05:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1331 states. [2018-10-23 22:05:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2051 transitions. [2018-10-23 22:05:35,424 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2051 transitions. Word has length 99 [2018-10-23 22:05:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:05:35,425 INFO L481 AbstractCegarLoop]: Abstraction has 1331 states and 2051 transitions. [2018-10-23 22:05:35,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:05:35,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2051 transitions. [2018-10-23 22:05:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 22:05:35,433 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:05:35,433 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] [2018-10-23 22:05:35,434 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:05:35,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:35,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1340062609, now seen corresponding path program 1 times [2018-10-23 22:05:35,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:05:35,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:35,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:05:35,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:35,437 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:05:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:05:35,770 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 22:05:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:05:35,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:05:35,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:05:35,862 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:05:35,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:05:35,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:05:35,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:05:35,864 INFO L87 Difference]: Start difference. First operand 1331 states and 2051 transitions. Second operand 6 states. [2018-10-23 22:05:40,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:05:40,464 INFO L93 Difference]: Finished difference Result 3512 states and 5693 transitions. [2018-10-23 22:05:40,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:05:40,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-23 22:05:40,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:05:40,497 INFO L225 Difference]: With dead ends: 3512 [2018-10-23 22:05:40,497 INFO L226 Difference]: Without dead ends: 2187 [2018-10-23 22:05:40,513 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:05:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2018-10-23 22:05:40,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2165. [2018-10-23 22:05:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2165 states. [2018-10-23 22:05:40,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 3178 transitions. [2018-10-23 22:05:40,595 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 3178 transitions. Word has length 101 [2018-10-23 22:05:40,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:05:40,596 INFO L481 AbstractCegarLoop]: Abstraction has 2165 states and 3178 transitions. [2018-10-23 22:05:40,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:05:40,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 3178 transitions. [2018-10-23 22:05:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-23 22:05:40,599 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:05:40,600 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] [2018-10-23 22:05:40,600 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:05:40,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:40,600 INFO L82 PathProgramCache]: Analyzing trace with hash 457598944, now seen corresponding path program 1 times [2018-10-23 22:05:40,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:05:40,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:40,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:05:40,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:05:40,606 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:05:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:05:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:05:40,834 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:05:40,834 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:05:40,835 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 105 with the following transitions: [2018-10-23 22:05:40,837 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [93], [95], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [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], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-23 22:05:40,912 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:05:40,913 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:05:43,455 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:05:56,612 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:05:56,615 INFO L272 AbstractInterpreter]: Visited 87 different actions 492 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-23 22:05:56,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:05:56,662 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:05:59,059 INFO L232 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 78.1% of their original sizes. [2018-10-23 22:05:59,059 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:06:15,853 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:06:15,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:06:15,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [7] total 23 [2018-10-23 22:06:15,855 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:06:15,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-23 22:06:15,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-23 22:06:15,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2018-10-23 22:06:15,856 INFO L87 Difference]: Start difference. First operand 2165 states and 3178 transitions. Second operand 18 states. Received shutdown request... [2018-10-23 22:09:18,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-23 22:09:18,759 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:09:18,765 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:09:18,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:09:18 BoogieIcfgContainer [2018-10-23 22:09:18,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:09:18,767 INFO L168 Benchmark]: Toolchain (without parser) took 236917.76 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,769 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-23 22:09:18,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.67 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 189.22 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,771 INFO L168 Benchmark]: Boogie Preprocessor took 89.96 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,773 INFO L168 Benchmark]: RCFGBuilder took 3413.17 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 123.3 MB). Peak memory consumption was 123.3 MB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,775 INFO L168 Benchmark]: TraceAbstraction took 232518.99 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -926.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-23 22:09:18,782 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.67 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 189.22 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.96 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3413.17 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 123.3 MB). Peak memory consumption was 123.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232518.99 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -926.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 55). Cancelled while BasicCegarLoop was constructing difference of abstraction (2165states) and FLOYD_HOARE automaton (currently 23 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (4505 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 232.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 195.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 498 SDtfs, 3913 SDslu, 567 SDs, 0 SdLazy, 5066 SolverSat, 1126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 135 GetRequests, 83 SyntacticMatches, 14 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2165occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9910299704516672 AbsIntWeakeningRatio, 0.1941747572815534 AbsIntAvgWeakeningVarsNumRemoved, 222.35922330097088 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 45 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 183823 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 43/51 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown