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/Problem01_label21_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:15:01,017 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:15:01,023 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:15:01,048 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:15:01,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:15:01,050 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:15:01,053 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:15:01,056 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:15:01,058 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:15:01,059 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:15:01,061 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:15:01,062 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:15:01,062 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:15:01,064 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:15:01,065 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:15:01,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:15:01,068 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:15:01,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:15:01,077 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:15:01,078 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:15:01,082 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:15:01,083 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:15:01,087 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 17:15:01,105 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 17:15:01,136 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:15:01,136 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:15:01,138 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:15:01,138 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 17:15:01,138 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 17:15:01,139 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 17:15:01,139 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 17:15:01,139 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 17:15:01,139 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 17:15:01,139 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 17:15:01,140 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 17:15:01,140 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 17:15:01,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:15:01,141 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:15:01,141 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:15:01,142 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:15:01,143 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:15:01,144 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:15:01,144 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:15:01,144 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:15:01,144 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:15:01,144 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:15:01,145 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:15:01,145 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:15:01,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:15:01,146 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:15:01,146 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:15:01,146 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:15:01,146 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 17:15:01,146 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:15:01,147 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:15:01,147 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:15:01,147 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:15:01,147 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 17:15:01,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:15:01,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:15:01,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:15:01,244 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:15:01,244 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:15:01,245 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label21_false-unreach-call_false-termination.c [2018-10-24 17:15:01,306 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3ac02dfb6/de815104064d4a84aff06f1aa6761760/FLAG8fca1ee9b [2018-10-24 17:15:01,951 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:15:01,952 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label21_false-unreach-call_false-termination.c [2018-10-24 17:15:01,964 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3ac02dfb6/de815104064d4a84aff06f1aa6761760/FLAG8fca1ee9b [2018-10-24 17:15:01,980 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3ac02dfb6/de815104064d4a84aff06f1aa6761760 [2018-10-24 17:15:01,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:15:01,993 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:15:01,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:15:01,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:15:01,999 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:15:02,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:15:01" (1/1) ... [2018-10-24 17:15:02,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e73589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02, skipping insertion in model container [2018-10-24 17:15:02,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:15:01" (1/1) ... [2018-10-24 17:15:02,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:15:02,086 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:15:02,570 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:15:02,578 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:15:02,703 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:15:02,723 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:15:02,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02 WrapperNode [2018-10-24 17:15:02,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:15:02,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:15:02,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:15:02,726 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:15:02,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:15:02,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:15:02,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:15:02,941 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:15:02,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:03,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:03,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:03,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:15:03,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:15:03,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:15:03,031 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:15:03,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (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 17:15:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 17:15:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 17:15:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 17:15:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 17:15:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:15:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:15:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 17:15:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 17:15:06,285 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:15:06,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:15:06 BoogieIcfgContainer [2018-10-24 17:15:06,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:15:06,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:15:06,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:15:06,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:15:06,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:15:01" (1/3) ... [2018-10-24 17:15:06,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192018a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:15:06, skipping insertion in model container [2018-10-24 17:15:06,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (2/3) ... [2018-10-24 17:15:06,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192018a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:15:06, skipping insertion in model container [2018-10-24 17:15:06,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:15:06" (3/3) ... [2018-10-24 17:15:06,295 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label21_false-unreach-call_false-termination.c [2018-10-24 17:15:06,305 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:15:06,314 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:15:06,332 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:15:06,371 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:15:06,372 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:15:06,372 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:15:06,372 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:15:06,372 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:15:06,373 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:15:06,373 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:15:06,373 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:15:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-24 17:15:06,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-24 17:15:06,420 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:06,421 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] [2018-10-24 17:15:06,424 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:06,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:06,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1428309616, now seen corresponding path program 1 times [2018-10-24 17:15:06,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:06,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:06,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:06,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:06,485 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:07,049 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 17:15:07,261 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 17:15:07,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:15:07,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:15:07,264 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:07,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:15:07,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:15:07,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:15:07,289 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-24 17:15:08,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:08,919 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-24 17:15:08,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:15:08,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2018-10-24 17:15:08,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:08,951 INFO L225 Difference]: With dead ends: 550 [2018-10-24 17:15:08,951 INFO L226 Difference]: Without dead ends: 340 [2018-10-24 17:15:08,963 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:15:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-24 17:15:09,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-24 17:15:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-24 17:15:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 541 transitions. [2018-10-24 17:15:09,046 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 541 transitions. Word has length 90 [2018-10-24 17:15:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:09,048 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 541 transitions. [2018-10-24 17:15:09,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:15:09,049 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 541 transitions. [2018-10-24 17:15:09,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 17:15:09,060 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:09,060 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:15:09,061 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:09,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:09,061 INFO L82 PathProgramCache]: Analyzing trace with hash 126198447, now seen corresponding path program 1 times [2018-10-24 17:15:09,061 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:09,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:09,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:09,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:09,064 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:15:09,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:15:09,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:15:09,284 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:09,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:15:09,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:15:09,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:15:09,287 INFO L87 Difference]: Start difference. First operand 340 states and 541 transitions. Second operand 6 states. [2018-10-24 17:15:11,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:11,100 INFO L93 Difference]: Finished difference Result 1075 states and 1784 transitions. [2018-10-24 17:15:11,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:15:11,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-24 17:15:11,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:11,109 INFO L225 Difference]: With dead ends: 1075 [2018-10-24 17:15:11,109 INFO L226 Difference]: Without dead ends: 741 [2018-10-24 17:15:11,113 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 [2018-10-24 17:15:11,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-10-24 17:15:11,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-10-24 17:15:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-10-24 17:15:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1120 transitions. [2018-10-24 17:15:11,187 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1120 transitions. Word has length 101 [2018-10-24 17:15:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:11,187 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1120 transitions. [2018-10-24 17:15:11,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:15:11,187 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1120 transitions. [2018-10-24 17:15:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-24 17:15:11,201 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:11,201 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:15:11,202 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:11,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:11,203 INFO L82 PathProgramCache]: Analyzing trace with hash -173396989, now seen corresponding path program 1 times [2018-10-24 17:15:11,203 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:11,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:11,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:11,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:11,208 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:15:11,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:15:11,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:15:11,456 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:11,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:15:11,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:15:11,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:15:11,457 INFO L87 Difference]: Start difference. First operand 724 states and 1120 transitions. Second operand 3 states. [2018-10-24 17:15:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:13,279 INFO L93 Difference]: Finished difference Result 2075 states and 3312 transitions. [2018-10-24 17:15:13,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:15:13,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2018-10-24 17:15:13,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:13,291 INFO L225 Difference]: With dead ends: 2075 [2018-10-24 17:15:13,291 INFO L226 Difference]: Without dead ends: 1357 [2018-10-24 17:15:13,301 INFO L605 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 [2018-10-24 17:15:13,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2018-10-24 17:15:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1350. [2018-10-24 17:15:13,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1350 states. [2018-10-24 17:15:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 2010 transitions. [2018-10-24 17:15:13,377 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 2010 transitions. Word has length 102 [2018-10-24 17:15:13,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:13,378 INFO L481 AbstractCegarLoop]: Abstraction has 1350 states and 2010 transitions. [2018-10-24 17:15:13,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:15:13,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 2010 transitions. [2018-10-24 17:15:13,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-24 17:15:13,382 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:13,383 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 17:15:13,383 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:13,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:13,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1013447672, now seen corresponding path program 1 times [2018-10-24 17:15:13,385 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:13,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:13,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:13,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:13,387 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:15:13,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:15:13,701 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 17:15:13,702 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-10-24 17:15:13,704 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [53], [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], [357], [359], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 17:15:13,779 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 17:15:13,780 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 17:15:50,985 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 17:15:50,987 INFO L272 AbstractInterpreter]: Visited 94 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-24 17:15:51,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:51,016 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 17:16:00,013 INFO L232 lantSequenceWeakener]: Weakened 16 states. On average, predicates are now at 81.72% of their original sizes. [2018-10-24 17:16:00,013 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 17:16:40,066 INFO L413 sIntCurrentIteration]: We have 122 unified AI predicates [2018-10-24 17:16:40,066 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 17:16:40,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:16:40,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-10-24 17:16:40,068 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:16:40,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 17:16:40,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 17:16:40,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-10-24 17:16:40,070 INFO L87 Difference]: Start difference. First operand 1350 states and 2010 transitions. Second operand 20 states. Received shutdown request... [2018-10-24 17:19:23,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 17:19:23,687 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:19:23,694 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:19:23,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:19:23 BoogieIcfgContainer [2018-10-24 17:19:23,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:19:23,695 INFO L168 Benchmark]: Toolchain (without parser) took 261702.86 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 342.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:23,696 INFO L168 Benchmark]: CDTParser took 0.19 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 17:19:23,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.97 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:23,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 214.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -828.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:23,699 INFO L168 Benchmark]: Boogie Preprocessor took 84.93 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 17:19:23,699 INFO L168 Benchmark]: RCFGBuilder took 3260.77 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: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:23,700 INFO L168 Benchmark]: TraceAbstraction took 257406.87 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 266.9 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:23,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 729.97 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 214.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -828.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.93 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 3260.77 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: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257406.87 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 266.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 425]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 425). Cancelled while BasicCegarLoop was constructing difference of abstraction (1350states) and FLOYD_HOARE automaton (currently 21 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (394 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 257.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 168.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 390 SDtfs, 1374 SDslu, 216 SDs, 0 SdLazy, 2324 SolverSat, 553 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 155 GetRequests, 112 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 56.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1350occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 37.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9927457588393215 AbsIntWeakeningRatio, 0.28688524590163933 AbsIntAvgWeakeningVarsNumRemoved, 910.2704918032787 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 416 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 101139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 54/56 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown