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/Problem12_label07_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:14:18,081 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:14:18,083 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:14:18,101 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:14:18,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:14:18,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:14:18,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:14:18,106 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:14:18,107 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:14:18,108 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:14:18,109 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:14:18,109 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:14:18,110 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:14:18,111 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:14:18,112 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:14:18,113 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:14:18,114 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:14:18,119 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:14:18,121 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:14:18,123 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:14:18,129 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:14:18,130 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:14:18,136 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:14:18,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:14:18,148 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:14:18,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:14:18,150 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:14:18,150 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:14:18,182 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:14:18,184 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:14:18,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:14:18,185 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:14:18,186 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:14:18,186 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:14:18,186 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:14:18,186 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:14:18,187 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:14:18,187 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:14:18,187 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:14:18,187 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:14:18,188 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:14:18,188 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:14:18,188 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:14:18,189 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:14:18,189 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:14:18,189 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:14:18,189 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:14:18,189 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:14:18,190 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:14:18,190 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:14:18,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:14:18,190 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:14:18,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:14:18,191 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:14:18,191 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:14:18,191 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:14:18,191 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:14:18,191 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:14:18,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:14:18,192 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:14:18,192 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:14:18,192 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:14:18,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:14:18,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:14:18,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:14:18,282 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:14:18,282 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:14:18,283 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label07_false-unreach-call.c [2018-10-24 18:14:18,351 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5555f668a/5148589d2d1e4421a380ac4ffdb02092/FLAGc16dd7ff3 [2018-10-24 18:14:19,173 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:14:19,174 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label07_false-unreach-call.c [2018-10-24 18:14:19,213 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5555f668a/5148589d2d1e4421a380ac4ffdb02092/FLAGc16dd7ff3 [2018-10-24 18:14:19,234 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5555f668a/5148589d2d1e4421a380ac4ffdb02092 [2018-10-24 18:14:19,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:14:19,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:14:19,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:14:19,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:14:19,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:14:19,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:14:19" (1/1) ... [2018-10-24 18:14:19,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4aab1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:19, skipping insertion in model container [2018-10-24 18:14:19,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:14:19" (1/1) ... [2018-10-24 18:14:19,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:14:19,457 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:14:20,809 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:14:20,814 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:14:21,459 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:14:21,499 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:14:21,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21 WrapperNode [2018-10-24 18:14:21,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:14:21,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:14:21,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:14:21,501 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:14:21,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:21,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:22,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:14:22,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:14:22,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:14:22,010 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:14:22,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:22,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:22,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:22,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:22,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:22,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:22,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... [2018-10-24 18:14:22,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:14:22,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:14:22,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:14:22,277 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:14:22,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:14:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:14:22,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:14:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 18:14:22,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 18:14:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 18:14:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 18:14:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:14:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:14:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:14:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:14:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:14:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:14:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:14:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:14:34,500 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:14:34,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:14:34 BoogieIcfgContainer [2018-10-24 18:14:34,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:14:34,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:14:34,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:14:34,505 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:14:34,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:14:19" (1/3) ... [2018-10-24 18:14:34,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c48ae83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:14:34, skipping insertion in model container [2018-10-24 18:14:34,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:14:21" (2/3) ... [2018-10-24 18:14:34,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c48ae83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:14:34, skipping insertion in model container [2018-10-24 18:14:34,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:14:34" (3/3) ... [2018-10-24 18:14:34,509 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label07_false-unreach-call.c [2018-10-24 18:14:34,520 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:14:34,531 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:14:34,550 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:14:34,611 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:14:34,612 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:14:34,612 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:14:34,612 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:14:34,612 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:14:34,612 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:14:34,613 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:14:34,613 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:14:34,678 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-24 18:14:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 18:14:34,687 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:14:34,689 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:14:34,691 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:14:34,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:14:34,700 INFO L82 PathProgramCache]: Analyzing trace with hash -654729357, now seen corresponding path program 1 times [2018-10-24 18:14:34,703 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:14:34,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:14:34,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:14:34,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:14:34,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:14:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:14:35,127 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:14:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:14:35,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:14:35,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:14:35,240 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:14:35,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:14:35,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:14:35,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:14:35,288 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-24 18:14:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:14:45,782 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-24 18:14:45,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:14:45,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-24 18:14:45,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:14:45,825 INFO L225 Difference]: With dead ends: 2446 [2018-10-24 18:14:45,825 INFO L226 Difference]: Without dead ends: 1604 [2018-10-24 18:14:45,839 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 [2018-10-24 18:14:45,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-24 18:14:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-24 18:14:45,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-24 18:14:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2969 transitions. [2018-10-24 18:14:46,010 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2969 transitions. Word has length 13 [2018-10-24 18:14:46,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:14:46,011 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 2969 transitions. [2018-10-24 18:14:46,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:14:46,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2969 transitions. [2018-10-24 18:14:46,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-24 18:14:46,017 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:14:46,017 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] [2018-10-24 18:14:46,017 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:14:46,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:14:46,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1884712044, now seen corresponding path program 1 times [2018-10-24 18:14:46,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:14:46,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:14:46,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:14:46,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:14:46,022 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:14:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:14:46,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:14:46,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:14:46,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:14:46,349 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:14:46,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:14:46,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:14:46,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:14:46,352 INFO L87 Difference]: Start difference. First operand 1604 states and 2969 transitions. Second operand 5 states. [2018-10-24 18:15:01,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:15:01,662 INFO L93 Difference]: Finished difference Result 4038 states and 7427 transitions. [2018-10-24 18:15:01,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:15:01,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2018-10-24 18:15:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:15:01,681 INFO L225 Difference]: With dead ends: 4038 [2018-10-24 18:15:01,681 INFO L226 Difference]: Without dead ends: 2440 [2018-10-24 18:15:01,687 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 [2018-10-24 18:15:01,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2018-10-24 18:15:01,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2413. [2018-10-24 18:15:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2413 states. [2018-10-24 18:15:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 4141 transitions. [2018-10-24 18:15:01,781 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 4141 transitions. Word has length 87 [2018-10-24 18:15:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:15:01,782 INFO L481 AbstractCegarLoop]: Abstraction has 2413 states and 4141 transitions. [2018-10-24 18:15:01,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:15:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 4141 transitions. [2018-10-24 18:15:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-24 18:15:01,788 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:15:01,788 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] [2018-10-24 18:15:01,791 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:15:01,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:15:01,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1339015792, now seen corresponding path program 1 times [2018-10-24 18:15:01,792 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:15:01,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:15:01,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:15:01,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:15:01,793 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:15:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:15:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 18:15:01,986 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:15:01,986 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:15:01,987 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-10-24 18:15:01,989 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1871], [1873], [1876], [1884], [1892], [1900], [1908], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-24 18:15:02,057 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:15:02,057 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:15:06,793 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:15:06,795 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:15:06,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:15:06,834 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:15:08,869 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 82.02% of their original sizes. [2018-10-24 18:15:08,869 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:15:21,910 INFO L413 sIntCurrentIteration]: We have 88 unified AI predicates [2018-10-24 18:15:21,911 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:15:21,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:15:21,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [4] total 19 [2018-10-24 18:15:21,912 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:15:21,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 18:15:21,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 18:15:21,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2018-10-24 18:15:21,913 INFO L87 Difference]: Start difference. First operand 2413 states and 4141 transitions. Second operand 17 states. [2018-10-24 18:16:01,484 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 18:18:16,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 18:18:16,569 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:18:16,575 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:18:16,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:18:16 BoogieIcfgContainer [2018-10-24 18:18:16,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:18:16,576 INFO L168 Benchmark]: Toolchain (without parser) took 237327.06 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 152.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:18:16,577 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. [2018-10-24 18:18:16,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2248.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:18:16,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 508.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:18:16,580 INFO L168 Benchmark]: Boogie Preprocessor took 266.36 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: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:18:16,580 INFO L168 Benchmark]: RCFGBuilder took 12224.32 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 177.7 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -161.0 MB). Peak memory consumption was 662.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:18:16,581 INFO L168 Benchmark]: TraceAbstraction took 222073.30 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 147.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:18:16,587 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 2248.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 508.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 266.36 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: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12224.32 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 177.7 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -161.0 MB). Peak memory consumption was 662.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222073.30 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 147.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 30). Cancelled while BasicCegarLoop was constructing difference of abstraction (2413states) and FLOYD_HOARE automaton (currently 17 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (1066 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 221.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 200.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 391 SDtfs, 4975 SDslu, 280 SDs, 0 SdLazy, 8159 SolverSat, 2277 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 110.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 107 GetRequests, 74 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2413occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9898776223776224 AbsIntWeakeningRatio, 0.23863636363636365 AbsIntAvgWeakeningVarsNumRemoved, 482.64772727272725 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 27 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 47352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown