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/Problem03_label45_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:20:20,955 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:20:20,957 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:20:20,970 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:20:20,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:20:20,971 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:20:20,973 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:20:20,974 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:20:20,976 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:20:20,977 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:20:20,978 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:20:20,978 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:20:20,979 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:20:20,980 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:20:20,981 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:20:20,982 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:20:20,983 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:20:20,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:20:20,987 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:20:20,988 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:20:20,989 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:20:20,990 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:20:20,993 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 21:20:21,001 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 21:20:21,017 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:20:21,017 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:20:21,018 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:20:21,018 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 21:20:21,018 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 21:20:21,019 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 21:20:21,019 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 21:20:21,019 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 21:20:21,019 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 21:20:21,019 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 21:20:21,020 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 21:20:21,020 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 21:20:21,020 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:20:21,021 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:20:21,021 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:20:21,021 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:20:21,021 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:20:21,021 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:20:21,022 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:20:21,022 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:20:21,022 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:20:21,022 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:20:21,022 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:20:21,023 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:20:21,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:20:21,023 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:20:21,023 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:20:21,023 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:20:21,024 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 21:20:21,024 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:20:21,024 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:20:21,024 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:20:21,024 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:20:21,025 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 21:20:21,070 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:20:21,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:20:21,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:20:21,092 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:20:21,093 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:20:21,093 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label45_false-unreach-call.c [2018-10-23 21:20:21,155 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16270e112/0031e968dd2e483eb34460ccf22d7fd5/FLAG0720b3ff8 [2018-10-23 21:20:21,891 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:20:21,892 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label45_false-unreach-call.c [2018-10-23 21:20:21,920 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16270e112/0031e968dd2e483eb34460ccf22d7fd5/FLAG0720b3ff8 [2018-10-23 21:20:21,945 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16270e112/0031e968dd2e483eb34460ccf22d7fd5 [2018-10-23 21:20:21,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:20:21,964 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:20:21,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:20:21,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:20:21,973 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:20:21,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:20:21" (1/1) ... [2018-10-23 21:20:21,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1597294d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:21, skipping insertion in model container [2018-10-23 21:20:21,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:20:21" (1/1) ... [2018-10-23 21:20:21,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:20:22,079 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:20:22,793 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:20:22,798 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:20:23,003 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:20:23,028 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:20:23,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23 WrapperNode [2018-10-23 21:20:23,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:20:23,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:20:23,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:20:23,030 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:20:23,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:20:23,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:20:23,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:20:23,403 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:20:23,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... [2018-10-23 21:20:23,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:20:23,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:20:23,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:20:23,562 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:20:23,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:20:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 21:20:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 21:20:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 21:20:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 21:20:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:20:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:20:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 21:20:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 21:20:28,593 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:20:28,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:20:28 BoogieIcfgContainer [2018-10-23 21:20:28,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:20:28,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:20:28,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:20:28,601 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:20:28,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:20:21" (1/3) ... [2018-10-23 21:20:28,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792415ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:20:28, skipping insertion in model container [2018-10-23 21:20:28,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:20:23" (2/3) ... [2018-10-23 21:20:28,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792415ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:20:28, skipping insertion in model container [2018-10-23 21:20:28,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:20:28" (3/3) ... [2018-10-23 21:20:28,608 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label45_false-unreach-call.c [2018-10-23 21:20:28,619 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:20:28,637 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:20:28,658 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:20:28,723 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:20:28,723 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:20:28,724 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:20:28,724 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:20:28,724 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:20:28,724 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:20:28,724 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:20:28,725 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:20:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-23 21:20:28,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-23 21:20:28,801 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:20:28,802 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, 1, 1, 1] [2018-10-23 21:20:28,805 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:20:28,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:20:28,814 INFO L82 PathProgramCache]: Analyzing trace with hash -554051460, now seen corresponding path program 1 times [2018-10-23 21:20:28,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:20:28,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:20:28,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:20:28,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:20:28,883 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:20:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:20:29,809 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-10-23 21:20:30,096 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 21:20:30,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:20:30,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:20:30,099 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:20:30,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:20:30,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:20:30,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:20:30,127 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-23 21:20:33,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:20:33,885 INFO L93 Difference]: Finished difference Result 1082 states and 1941 transitions. [2018-10-23 21:20:33,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:20:33,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2018-10-23 21:20:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:20:33,916 INFO L225 Difference]: With dead ends: 1082 [2018-10-23 21:20:33,916 INFO L226 Difference]: Without dead ends: 764 [2018-10-23 21:20:33,924 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:20:33,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2018-10-23 21:20:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 522. [2018-10-23 21:20:34,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-10-23 21:20:34,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 918 transitions. [2018-10-23 21:20:34,047 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 918 transitions. Word has length 151 [2018-10-23 21:20:34,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:20:34,048 INFO L481 AbstractCegarLoop]: Abstraction has 522 states and 918 transitions. [2018-10-23 21:20:34,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:20:34,049 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 918 transitions. [2018-10-23 21:20:34,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-10-23 21:20:34,055 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:20:34,055 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, 1, 1, 1, 1, 1] [2018-10-23 21:20:34,056 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:20:34,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:20:34,056 INFO L82 PathProgramCache]: Analyzing trace with hash 406455853, now seen corresponding path program 1 times [2018-10-23 21:20:34,057 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:20:34,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:20:34,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:20:34,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:20:34,058 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:20:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:20:34,368 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 21:20:34,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:20:34,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 21:20:34,369 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:20:34,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:20:34,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:20:34,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:20:34,372 INFO L87 Difference]: Start difference. First operand 522 states and 918 transitions. Second operand 5 states. [2018-10-23 21:20:37,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:20:37,289 INFO L93 Difference]: Finished difference Result 1609 states and 2931 transitions. [2018-10-23 21:20:37,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:20:37,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2018-10-23 21:20:37,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:20:37,307 INFO L225 Difference]: With dead ends: 1609 [2018-10-23 21:20:37,307 INFO L226 Difference]: Without dead ends: 1093 [2018-10-23 21:20:37,312 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 21:20:37,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2018-10-23 21:20:37,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1070. [2018-10-23 21:20:37,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2018-10-23 21:20:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1765 transitions. [2018-10-23 21:20:37,387 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1765 transitions. Word has length 162 [2018-10-23 21:20:37,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:20:37,388 INFO L481 AbstractCegarLoop]: Abstraction has 1070 states and 1765 transitions. [2018-10-23 21:20:37,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:20:37,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1765 transitions. [2018-10-23 21:20:37,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-23 21:20:37,399 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:20:37,403 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1] [2018-10-23 21:20:37,403 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:20:37,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:20:37,404 INFO L82 PathProgramCache]: Analyzing trace with hash 2048888082, now seen corresponding path program 1 times [2018-10-23 21:20:37,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:20:37,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:20:37,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:20:37,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:20:37,406 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:20:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:20:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 21:20:37,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:20:37,629 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:20:37,630 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-10-23 21:20:37,634 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [10], [12], [13], [16], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [669], [671], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-23 21:20:37,730 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:20:37,731 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-23 21:25:00,263 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 21:25:00,264 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 21:25:00,265 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 21:25:00,265 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:25:00,266 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:25:00,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:25:00,277 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 21:25:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:25:00,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:25:00,515 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 21:25:00,716 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:25:00,717 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:25:00,725 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:25:00,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:25:00 BoogieIcfgContainer [2018-10-23 21:25:00,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:25:00,729 INFO L168 Benchmark]: Toolchain (without parser) took 278764.00 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -848.5 MB). Peak memory consumption was 650.9 MB. Max. memory is 7.1 GB. [2018-10-23 21:25:00,730 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:25:00,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1063.87 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:25:00,732 INFO L168 Benchmark]: Boogie Procedure Inliner took 372.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -885.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:25:00,734 INFO L168 Benchmark]: Boogie Preprocessor took 158.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-10-23 21:25:00,738 INFO L168 Benchmark]: RCFGBuilder took 5032.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 265.3 MB). Peak memory consumption was 265.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:25:00,739 INFO L168 Benchmark]: TraceAbstraction took 272130.59 ms. Allocated memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: 738.7 MB). Free memory was 1.9 GB in the beginning and 2.3 GB in the end (delta: -327.2 MB). Peak memory consumption was 411.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:25:00,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1063.87 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 372.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -885.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5032.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 265.3 MB). Peak memory consumption was 265.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 272130.59 ms. Allocated memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: 738.7 MB). Free memory was 1.9 GB in the beginning and 2.3 GB in the end (delta: -327.2 MB). Peak memory consumption was 411.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1467]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1467). Cancelled while BasicCegarLoop was analyzing trace of length 173 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 272.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 6.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 294 SDtfs, 1602 SDslu, 272 SDs, 0 SdLazy, 2489 SolverSat, 614 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1070occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 262.6s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 265 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 313 NumberOfCodeBlocks, 313 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 224317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown