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_label33_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:38:06,873 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:38:06,875 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:38:06,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:38:06,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:38:06,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:38:06,891 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:38:06,893 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:38:06,894 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:38:06,895 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:38:06,896 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:38:06,897 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:38:06,898 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:38:06,899 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:38:06,900 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:38:06,901 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:38:06,902 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:38:06,904 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:38:06,906 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:38:06,908 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:38:06,909 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:38:06,910 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:38:06,912 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 22:38:06,922 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 [2018-10-26 22:38:06,937 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:38:06,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:38:06,939 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:38:06,939 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:38:06,939 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:38:06,939 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:38:06,940 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:38:06,940 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:38:06,940 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-26 22:38:06,940 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:38:06,940 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:38:06,941 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:38:06,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:38:06,942 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:38:06,942 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:38:06,942 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:38:06,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:38:06,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:38:06,943 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:38:06,943 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:38:06,943 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:38:06,943 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:38:06,944 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:38:06,944 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:38:06,944 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:38:06,944 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:38:06,944 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:38:06,945 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:38:06,945 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:38:06,945 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:38:06,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:38:06,945 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:38:06,946 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:38:06,946 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-26 22:38:07,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:38:07,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:38:07,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:38:07,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:38:07,025 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:38:07,026 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label33_false-unreach-call_false-termination.c [2018-10-26 22:38:07,090 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/67c526314/aa27dff3842547e6ae3d1122e49f42f3/FLAGda3bd685b [2018-10-26 22:38:07,709 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:38:07,710 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label33_false-unreach-call_false-termination.c [2018-10-26 22:38:07,729 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/67c526314/aa27dff3842547e6ae3d1122e49f42f3/FLAGda3bd685b [2018-10-26 22:38:07,754 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/67c526314/aa27dff3842547e6ae3d1122e49f42f3 [2018-10-26 22:38:07,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:38:07,770 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:38:07,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:38:07,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:38:07,779 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:38:07,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:38:07" (1/1) ... [2018-10-26 22:38:07,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b98b391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:07, skipping insertion in model container [2018-10-26 22:38:07,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:38:07" (1/1) ... [2018-10-26 22:38:07,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:38:07,876 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:38:08,384 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:38:08,392 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:38:08,538 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:38:08,563 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:38:08,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08 WrapperNode [2018-10-26 22:38:08,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:38:08,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:38:08,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:38:08,566 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:38:08,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:38:08,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:38:08,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:38:08,781 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:38:08,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (1/1) ... [2018-10-26 22:38:08,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:38:08,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:38:08,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:38:08,884 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:38:08,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (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 [2018-10-26 22:38:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:38:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:38:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-26 22:38:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-26 22:38:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:38:08,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:38:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:38:08,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:38:12,419 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:38:12,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:38:12 BoogieIcfgContainer [2018-10-26 22:38:12,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:38:12,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:38:12,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:38:12,429 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:38:12,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:38:07" (1/3) ... [2018-10-26 22:38:12,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188ed34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:38:12, skipping insertion in model container [2018-10-26 22:38:12,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:38:08" (2/3) ... [2018-10-26 22:38:12,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188ed34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:38:12, skipping insertion in model container [2018-10-26 22:38:12,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:38:12" (3/3) ... [2018-10-26 22:38:12,434 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label33_false-unreach-call_false-termination.c [2018-10-26 22:38:12,446 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:38:12,459 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:38:12,478 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:38:12,530 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:38:12,532 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:38:12,532 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:38:12,532 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:38:12,533 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:38:12,533 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:38:12,533 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:38:12,533 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:38:12,574 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-26 22:38:12,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-26 22:38:12,589 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:38:12,591 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] [2018-10-26 22:38:12,593 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:38:12,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:38:12,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1595865960, now seen corresponding path program 1 times [2018-10-26 22:38:12,603 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:38:12,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:38:12,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:38:12,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:38:12,662 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:38:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:38:13,151 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 22:38:13,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:13,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:38:13,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:38:13,288 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:38:13,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:38:13,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:38:13,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:38:13,317 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-26 22:38:15,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:38:15,474 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-26 22:38:15,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:38:15,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2018-10-26 22:38:15,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:38:15,493 INFO L225 Difference]: With dead ends: 550 [2018-10-26 22:38:15,494 INFO L226 Difference]: Without dead ends: 340 [2018-10-26 22:38:15,500 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:38:15,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-26 22:38:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-26 22:38:15,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-26 22:38:15,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 541 transitions. [2018-10-26 22:38:15,576 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 541 transitions. Word has length 84 [2018-10-26 22:38:15,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:38:15,577 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 541 transitions. [2018-10-26 22:38:15,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:38:15,578 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 541 transitions. [2018-10-26 22:38:15,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-26 22:38:15,583 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:38:15,583 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] [2018-10-26 22:38:15,584 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:38:15,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:38:15,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1870262519, now seen corresponding path program 1 times [2018-10-26 22:38:15,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:38:15,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:38:15,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:38:15,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:38:15,586 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:38:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:38:15,829 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 22:38:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:15,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:38:15,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:38:15,864 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:38:15,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:38:15,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:38:15,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:38:15,867 INFO L87 Difference]: Start difference. First operand 340 states and 541 transitions. Second operand 6 states. [2018-10-26 22:38:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:38:17,850 INFO L93 Difference]: Finished difference Result 1075 states and 1784 transitions. [2018-10-26 22:38:17,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:38:17,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2018-10-26 22:38:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:38:17,864 INFO L225 Difference]: With dead ends: 1075 [2018-10-26 22:38:17,865 INFO L226 Difference]: Without dead ends: 741 [2018-10-26 22:38:17,870 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 [2018-10-26 22:38:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-10-26 22:38:17,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-10-26 22:38:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-10-26 22:38:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1120 transitions. [2018-10-26 22:38:17,931 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1120 transitions. Word has length 95 [2018-10-26 22:38:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:38:17,931 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1120 transitions. [2018-10-26 22:38:17,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:38:17,931 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1120 transitions. [2018-10-26 22:38:17,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-26 22:38:17,936 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:38:17,936 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] [2018-10-26 22:38:17,936 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:38:17,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:38:17,937 INFO L82 PathProgramCache]: Analyzing trace with hash -792393397, now seen corresponding path program 1 times [2018-10-26 22:38:17,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:38:17,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:38:17,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:38:17,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:38:17,938 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:38:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:38:18,142 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:18,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:38:18,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:38:18,143 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:38:18,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:38:18,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:38:18,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:38:18,147 INFO L87 Difference]: Start difference. First operand 724 states and 1120 transitions. Second operand 3 states. [2018-10-26 22:38:19,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:38:19,883 INFO L93 Difference]: Finished difference Result 1877 states and 2955 transitions. [2018-10-26 22:38:19,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:38:19,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2018-10-26 22:38:19,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:38:19,896 INFO L225 Difference]: With dead ends: 1877 [2018-10-26 22:38:19,896 INFO L226 Difference]: Without dead ends: 1159 [2018-10-26 22:38:19,904 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 [2018-10-26 22:38:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2018-10-26 22:38:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1156. [2018-10-26 22:38:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2018-10-26 22:38:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1649 transitions. [2018-10-26 22:38:19,994 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1649 transitions. Word has length 96 [2018-10-26 22:38:19,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:38:19,995 INFO L481 AbstractCegarLoop]: Abstraction has 1156 states and 1649 transitions. [2018-10-26 22:38:19,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:38:19,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1649 transitions. [2018-10-26 22:38:20,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-26 22:38:20,002 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:38:20,004 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] [2018-10-26 22:38:20,005 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:38:20,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:38:20,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1004701968, now seen corresponding path program 1 times [2018-10-26 22:38:20,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:38:20,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:38:20,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:38:20,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:38:20,008 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:38:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:38:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:20,429 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:38:20,429 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 22:38:20,430 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-10-26 22:38:20,432 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], [309], [311], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-26 22:38:20,509 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 22:38:20,510 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 22:38:58,619 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 22:38:58,621 INFO L272 AbstractInterpreter]: Visited 88 different actions 153 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-26 22:38:58,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:38:58,636 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 22:39:05,007 INFO L227 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 80.45% of their original sizes. [2018-10-26 22:39:05,007 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 22:39:25,271 INFO L415 sIntCurrentIteration]: We unified 116 AI predicates to 116 [2018-10-26 22:39:25,271 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 22:39:25,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 22:39:25,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-10-26 22:39:25,273 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:39:25,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-26 22:39:25,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-26 22:39:25,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-10-26 22:39:25,274 INFO L87 Difference]: Start difference. First operand 1156 states and 1649 transitions. Second operand 14 states. Received shutdown request... [2018-10-26 22:42:29,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-26 22:42:29,469 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 22:42:29,475 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 22:42:29,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:42:29 BoogieIcfgContainer [2018-10-26 22:42:29,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:42:29,477 INFO L168 Benchmark]: Toolchain (without parser) took 261708.58 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -45.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-26 22:42:29,478 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-26 22:42:29,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 793.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-26 22:42:29,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 215.17 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 695.7 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -777.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2018-10-26 22:42:29,481 INFO L168 Benchmark]: Boogie Preprocessor took 101.38 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-26 22:42:29,483 INFO L168 Benchmark]: RCFGBuilder took 3537.36 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 107.6 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. [2018-10-26 22:42:29,484 INFO L168 Benchmark]: TraceAbstraction took 257050.69 ms. Allocated memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: 530.6 MB). Free memory was 2.0 GB in the beginning and 1.4 GB in the end (delta: 567.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-26 22:42:29,490 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 793.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 215.17 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 695.7 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -777.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.38 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3537.36 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 107.6 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257050.69 ms. Allocated memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: 530.6 MB). Free memory was 2.0 GB in the beginning and 1.4 GB in the end (delta: 567.6 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: 407]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 407). Cancelled while BasicCegarLoop was constructing difference of abstraction (1156states) and FLOYD_HOARE automaton (currently 21 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (717 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 256.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 190.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 391 SDtfs, 1509 SDslu, 205 SDs, 0 SdLazy, 2184 SolverSat, 561 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 145 GetRequests, 112 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 33.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1156occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 38.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9923705394689415 AbsIntWeakeningRatio, 0.3017241379310345 AbsIntAvgWeakeningVarsNumRemoved, 210.0344827586207 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 392 NumberOfCodeBlocks, 392 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 90195 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