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/Problem02_label33_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:25:43,074 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:25:43,076 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:25:43,088 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:25:43,089 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:25:43,090 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:25:43,091 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:25:43,093 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:25:43,094 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:25:43,095 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:25:43,096 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:25:43,097 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:25:43,097 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:25:43,098 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:25:43,100 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:25:43,100 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:25:43,101 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:25:43,103 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:25:43,105 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:25:43,107 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:25:43,108 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:25:43,109 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:25:43,112 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 23:25:43,122 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 23:25:43,143 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:25:43,143 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:25:43,144 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:25:43,144 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:25:43,144 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:25:43,145 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:25:43,145 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:25:43,145 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:25:43,145 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:25:43,145 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:25:43,146 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:25:43,146 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:25:43,147 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:25:43,147 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:25:43,147 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:25:43,147 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:25:43,147 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:25:43,148 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:25:43,148 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:25:43,148 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:25:43,148 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:25:43,148 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:25:43,149 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:25:43,149 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:25:43,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:25:43,149 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:25:43,149 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:25:43,150 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:25:43,150 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:25:43,150 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:25:43,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:25:43,150 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:25:43,151 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:25:43,151 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:25:43,210 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:25:43,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:25:43,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:25:43,240 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:25:43,240 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:25:43,241 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33_true-unreach-call_false-termination.c [2018-10-23 23:25:43,312 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/284484f10/9a492ed689234a2ebbc82202d2e6802f/FLAGa279defb1 [2018-10-23 23:25:43,920 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:25:43,921 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33_true-unreach-call_false-termination.c [2018-10-23 23:25:43,950 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/284484f10/9a492ed689234a2ebbc82202d2e6802f/FLAGa279defb1 [2018-10-23 23:25:43,967 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/284484f10/9a492ed689234a2ebbc82202d2e6802f [2018-10-23 23:25:43,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:25:43,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:25:43,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:25:43,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:25:43,987 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:25:43,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:25:43" (1/1) ... [2018-10-23 23:25:43,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41551d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:43, skipping insertion in model container [2018-10-23 23:25:43,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:25:43" (1/1) ... [2018-10-23 23:25:44,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:25:44,066 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:25:44,589 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:25:44,594 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:25:44,689 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:25:44,708 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:25:44,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44 WrapperNode [2018-10-23 23:25:44,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:25:44,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:25:44,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:25:44,710 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:25:44,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:25:44,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:25:44,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:25:44,797 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:25:44,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (1/1) ... [2018-10-23 23:25:44,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:25:45,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:25:45,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:25:45,000 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:25:45,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (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 23:25:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:25:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:25:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:25:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:25:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:25:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:25:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:25:45,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:25:48,418 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:25:48,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:25:48 BoogieIcfgContainer [2018-10-23 23:25:48,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:25:48,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:25:48,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:25:48,427 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:25:48,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:25:43" (1/3) ... [2018-10-23 23:25:48,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c454779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:25:48, skipping insertion in model container [2018-10-23 23:25:48,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:44" (2/3) ... [2018-10-23 23:25:48,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c454779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:25:48, skipping insertion in model container [2018-10-23 23:25:48,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:25:48" (3/3) ... [2018-10-23 23:25:48,436 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label33_true-unreach-call_false-termination.c [2018-10-23 23:25:48,448 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:25:48,459 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:25:48,478 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:25:48,514 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:25:48,515 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:25:48,515 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:25:48,515 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:25:48,515 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:25:48,516 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:25:48,516 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:25:48,516 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:25:48,543 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-23 23:25:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-23 23:25:48,561 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:48,563 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:25:48,565 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:48,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:48,573 INFO L82 PathProgramCache]: Analyzing trace with hash 928371784, now seen corresponding path program 1 times [2018-10-23 23:25:48,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:48,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:48,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:48,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:48,633 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:49,319 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:25:49,511 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 23:25:49,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:25:49,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:25:49,516 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:49,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:25:49,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:25:49,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:25:49,545 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-23 23:25:51,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:25:51,184 INFO L93 Difference]: Finished difference Result 621 states and 1060 transitions. [2018-10-23 23:25:51,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:25:51,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2018-10-23 23:25:51,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:25:51,207 INFO L225 Difference]: With dead ends: 621 [2018-10-23 23:25:51,207 INFO L226 Difference]: Without dead ends: 382 [2018-10-23 23:25:51,214 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:25:51,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-23 23:25:51,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2018-10-23 23:25:51,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-10-23 23:25:51,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 637 transitions. [2018-10-23 23:25:51,338 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 637 transitions. Word has length 148 [2018-10-23 23:25:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:25:51,341 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 637 transitions. [2018-10-23 23:25:51,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:25:51,342 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 637 transitions. [2018-10-23 23:25:51,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-23 23:25:51,361 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:51,361 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:25:51,362 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:51,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:51,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1776379179, now seen corresponding path program 1 times [2018-10-23 23:25:51,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:51,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:51,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:51,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:51,365 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:25:51,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:25:51,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:25:51,856 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:51,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:25:51,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:25:51,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:25:51,859 INFO L87 Difference]: Start difference. First operand 381 states and 637 transitions. Second operand 5 states. [2018-10-23 23:25:53,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:25:53,439 INFO L93 Difference]: Finished difference Result 901 states and 1555 transitions. [2018-10-23 23:25:53,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:25:53,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-10-23 23:25:53,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:25:53,447 INFO L225 Difference]: With dead ends: 901 [2018-10-23 23:25:53,447 INFO L226 Difference]: Without dead ends: 380 [2018-10-23 23:25:53,454 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:25:53,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2018-10-23 23:25:53,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2018-10-23 23:25:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-10-23 23:25:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 632 transitions. [2018-10-23 23:25:53,479 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 632 transitions. Word has length 157 [2018-10-23 23:25:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:25:53,480 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 632 transitions. [2018-10-23 23:25:53,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:25:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 632 transitions. [2018-10-23 23:25:53,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-10-23 23:25:53,484 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:53,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:25:53,485 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:53,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:53,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1550055566, now seen corresponding path program 1 times [2018-10-23 23:25:53,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:53,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:53,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:53,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:53,487 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:53,724 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:25:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:25:53,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:25:53,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:25:53,796 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:53,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:25:53,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:25:53,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:25:53,797 INFO L87 Difference]: Start difference. First operand 380 states and 632 transitions. Second operand 6 states. [2018-10-23 23:25:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:25:56,338 INFO L93 Difference]: Finished difference Result 1184 states and 2066 transitions. [2018-10-23 23:25:56,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:25:56,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2018-10-23 23:25:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:25:56,348 INFO L225 Difference]: With dead ends: 1184 [2018-10-23 23:25:56,348 INFO L226 Difference]: Without dead ends: 810 [2018-10-23 23:25:56,354 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 23:25:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2018-10-23 23:25:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 800. [2018-10-23 23:25:56,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2018-10-23 23:25:56,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1274 transitions. [2018-10-23 23:25:56,422 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1274 transitions. Word has length 182 [2018-10-23 23:25:56,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:25:56,422 INFO L481 AbstractCegarLoop]: Abstraction has 800 states and 1274 transitions. [2018-10-23 23:25:56,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:25:56,422 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1274 transitions. [2018-10-23 23:25:56,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-23 23:25:56,427 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:56,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:25:56,429 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:56,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:56,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1945419898, now seen corresponding path program 1 times [2018-10-23 23:25:56,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:56,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:56,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:56,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:56,431 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:25:56,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:25:56,829 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:25:56,830 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-10-23 23:25:56,833 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [819], [827], [835], [843], [851], [855], [857], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-23 23:25:56,912 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:25:56,912 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:26:27,401 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:26:27,403 INFO L272 AbstractInterpreter]: Visited 151 different actions 296 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-10-23 23:26:27,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:26:27,417 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:26:38,012 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 83.62% of their original sizes. [2018-10-23 23:26:38,013 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 23:27:47,192 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 23:27:47,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 23:27:47,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [7] total 25 [2018-10-23 23:27:47,193 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:27:47,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-23 23:27:47,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-23 23:27:47,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2018-10-23 23:27:47,196 INFO L87 Difference]: Start difference. First operand 800 states and 1274 transitions. Second operand 20 states. Received shutdown request... [2018-10-23 23:29:59,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-23 23:29:59,485 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:29:59,490 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:29:59,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:29:59 BoogieIcfgContainer [2018-10-23 23:29:59,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:29:59,491 INFO L168 Benchmark]: Toolchain (without parser) took 255511.40 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -504.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-23 23:29:59,492 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-10-23 23:29:59,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.05 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 23:29:59,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.16 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 23:29:59,494 INFO L168 Benchmark]: Boogie Preprocessor took 202.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -825.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2018-10-23 23:29:59,495 INFO L168 Benchmark]: RCFGBuilder took 3419.19 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: 119.1 MB). Peak memory consumption was 119.1 MB. Max. memory is 7.1 GB. [2018-10-23 23:29:59,496 INFO L168 Benchmark]: TraceAbstraction took 251070.39 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 906.5 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 171.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-23 23:29:59,501 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 727.05 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 86.16 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. * Boogie Preprocessor took 202.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -825.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3419.19 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: 119.1 MB). Peak memory consumption was 119.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 251070.39 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 906.5 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 171.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 595]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 595). Cancelled while BasicCegarLoop was constructing difference of abstraction (800states) and FLOYD_HOARE automaton (currently 23 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (681 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 250.9s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 138.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 454 SDtfs, 2337 SDslu, 280 SDs, 0 SdLazy, 2758 SolverSat, 640 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 211 GetRequests, 161 SyntacticMatches, 14 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 72.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=800occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 30.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9957911931596145 AbsIntWeakeningRatio, 0.14835164835164835 AbsIntAvgWeakeningVarsNumRemoved, 338.4065934065934 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 666 ConstructedInterpolants, 0 QuantifiedInterpolants, 601188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 37/69 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown