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/Problem17_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:09:19,148 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:09:19,156 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:09:19,169 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:09:19,170 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:09:19,171 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:09:19,172 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:09:19,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:09:19,176 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:09:19,177 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:09:19,178 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:09:19,178 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:09:19,179 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:09:19,180 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:09:19,181 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:09:19,182 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:09:19,183 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:09:19,185 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:09:19,190 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:09:19,191 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:09:19,192 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:09:19,194 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:09:19,197 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:09:19,206 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 22:09:19,224 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:09:19,224 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:09:19,225 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:09:19,225 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:09:19,225 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:09:19,225 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:09:19,226 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:09:19,226 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:09:19,226 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:09:19,226 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:09:19,226 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:09:19,227 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:09:19,227 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:09:19,228 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:09:19,228 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:09:19,228 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:09:19,228 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:09:19,228 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:09:19,229 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:09:19,229 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:09:19,229 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:09:19,229 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:09:19,229 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:09:19,230 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:09:19,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:09:19,230 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:09:19,230 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:09:19,230 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:09:19,231 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:09:19,231 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:09:19,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:09:19,231 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:09:19,231 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:09:19,232 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:09:19,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:09:19,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:09:19,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:09:19,301 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:09:19,302 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:09:19,303 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-10-24 22:09:19,380 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a5082b0e/8b69edede35040dda90cbf0282d6c88e/FLAGc5c8a377f [2018-10-24 22:09:20,133 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:09:20,134 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-10-24 22:09:20,169 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a5082b0e/8b69edede35040dda90cbf0282d6c88e/FLAGc5c8a377f [2018-10-24 22:09:20,192 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a5082b0e/8b69edede35040dda90cbf0282d6c88e [2018-10-24 22:09:20,207 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:09:20,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:09:20,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:09:20,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:09:20,218 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:09:20,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:09:20" (1/1) ... [2018-10-24 22:09:20,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a57073a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:20, skipping insertion in model container [2018-10-24 22:09:20,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:09:20" (1/1) ... [2018-10-24 22:09:20,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:09:20,353 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:09:21,288 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:09:21,293 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:09:21,724 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:09:21,751 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:09:21,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21 WrapperNode [2018-10-24 22:09:21,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:09:21,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:09:21,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:09:21,753 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:09:21,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:21,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:22,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:09:22,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:09:22,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:09:22,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:09:22,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:22,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:22,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:22,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:22,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:22,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:22,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (1/1) ... [2018-10-24 22:09:22,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:09:22,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:09:22,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:09:22,469 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:09:22,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (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 22:09:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:09:22,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:09:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:09:22,542 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:09:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:09:22,543 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:09:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:09:22,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:09:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:09:22,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:09:35,425 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:09:35,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:09:35 BoogieIcfgContainer [2018-10-24 22:09:35,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:09:35,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:09:35,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:09:35,431 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:09:35,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:09:20" (1/3) ... [2018-10-24 22:09:35,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132f7e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:09:35, skipping insertion in model container [2018-10-24 22:09:35,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:09:21" (2/3) ... [2018-10-24 22:09:35,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132f7e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:09:35, skipping insertion in model container [2018-10-24 22:09:35,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:09:35" (3/3) ... [2018-10-24 22:09:35,435 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label24_true-unreach-call.c [2018-10-24 22:09:35,446 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:09:35,456 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:09:35,474 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:09:35,523 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:09:35,523 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:09:35,524 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:09:35,524 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:09:35,524 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:09:35,524 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:09:35,524 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:09:35,525 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:09:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 22:09:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-24 22:09:35,576 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:09:35,577 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] [2018-10-24 22:09:35,579 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:09:35,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:09:35,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1873731430, now seen corresponding path program 1 times [2018-10-24 22:09:35,589 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:09:35,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:09:35,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:09:35,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:09:35,640 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:09:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:09:36,152 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 22:09:36,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:09:36,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 22:09:36,156 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:09:36,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 22:09:36,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 22:09:36,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:09:36,183 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 22:09:48,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:09:48,619 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-10-24 22:09:48,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 22:09:48,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-10-24 22:09:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:09:48,653 INFO L225 Difference]: With dead ends: 2133 [2018-10-24 22:09:48,653 INFO L226 Difference]: Without dead ends: 1523 [2018-10-24 22:09:48,666 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 22:09:48,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-10-24 22:09:48,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-10-24 22:09:48,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-10-24 22:09:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-10-24 22:09:48,863 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 67 [2018-10-24 22:09:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:09:48,864 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-10-24 22:09:48,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 22:09:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-10-24 22:09:48,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-24 22:09:48,878 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:09:48,878 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:09:48,880 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:09:48,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:09:48,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1143793551, now seen corresponding path program 1 times [2018-10-24 22:09:48,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:09:48,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:09:48,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:09:48,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:09:48,883 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:09:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:09:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:09:49,422 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:09:49,422 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:09:49,423 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-10-24 22:09:49,425 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1146], [1148], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 22:09:49,493 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:09:49,494 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:09:50,983 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:10:09,655 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 22:10:09,657 INFO L272 AbstractInterpreter]: Visited 83 different actions 544 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 22:10:09,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:10:09,671 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 22:10:09,671 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:10:09,671 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 [2018-10-24 22:10:09,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:10:09,684 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 22:10:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:10:09,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 22:10:36,612 WARN L179 SmtUtils]: Spent 24.24 s on a formula simplification. DAG size of input: 135 DAG size of output: 98 [2018-10-24 22:10:56,880 WARN L179 SmtUtils]: Spent 16.11 s on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2018-10-24 22:10:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:10:57,537 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 22:11:01,947 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-10-24 22:11:01,993 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-10-24 22:11:04,533 WARN L179 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-10-24 22:11:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:11:04,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-24 22:11:04,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-10-24 22:11:04,996 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:11:04,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:11:04,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:11:04,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=161, Unknown=4, NotChecked=0, Total=210 [2018-10-24 22:11:05,003 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-10-24 22:12:13,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:12:13,238 INFO L93 Difference]: Finished difference Result 5736 states and 8894 transitions. [2018-10-24 22:12:13,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 22:12:13,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-10-24 22:12:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:12:13,274 INFO L225 Difference]: With dead ends: 5736 [2018-10-24 22:12:13,274 INFO L226 Difference]: Without dead ends: 4226 [2018-10-24 22:12:13,287 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 54.1s TimeCoverageRelationStatistics Valid=45, Invalid=161, Unknown=4, NotChecked=0, Total=210 [2018-10-24 22:12:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2018-10-24 22:12:13,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 4197. [2018-10-24 22:12:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4197 states. [2018-10-24 22:12:13,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4197 states to 4197 states and 6149 transitions. [2018-10-24 22:12:13,432 INFO L78 Accepts]: Start accepts. Automaton has 4197 states and 6149 transitions. Word has length 142 [2018-10-24 22:12:13,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:12:13,433 INFO L481 AbstractCegarLoop]: Abstraction has 4197 states and 6149 transitions. [2018-10-24 22:12:13,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:12:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4197 states and 6149 transitions. [2018-10-24 22:12:13,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-24 22:12:13,452 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:12:13,452 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:12:13,453 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:12:13,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:12:13,453 INFO L82 PathProgramCache]: Analyzing trace with hash 211840503, now seen corresponding path program 1 times [2018-10-24 22:12:13,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:12:13,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:13,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:12:13,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:12:13,455 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:12:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:12:13,786 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:12:13,787 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:12:13,787 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:12:13,787 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-10-24 22:12:13,788 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1146], [1148], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 22:12:13,794 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:12:13,794 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:12:15,214 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:12:24,314 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:12:24,315 INFO L272 AbstractInterpreter]: Visited 95 different actions 272 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 22:12:24,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:12:24,353 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:12:26,490 INFO L232 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 82.14% of their original sizes. [2018-10-24 22:12:26,490 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:12:48,113 INFO L413 sIntCurrentIteration]: We have 154 unified AI predicates [2018-10-24 22:12:48,113 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:12:48,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:12:48,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [7] total 19 [2018-10-24 22:12:48,115 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:12:48,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 22:12:48,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 22:12:48,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-10-24 22:12:48,116 INFO L87 Difference]: Start difference. First operand 4197 states and 6149 transitions. Second operand 14 states. Received shutdown request... [2018-10-24 22:13:26,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 22:13:26,281 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:13:26,287 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:13:26,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:13:26 BoogieIcfgContainer [2018-10-24 22:13:26,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:13:26,289 INFO L168 Benchmark]: Toolchain (without parser) took 246081.38 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 22:13:26,290 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 22:13:26,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1542.49 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: 140.0 MB). Peak memory consumption was 140.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:13:26,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 479.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -900.7 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:13:26,292 INFO L168 Benchmark]: Boogie Preprocessor took 236.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. [2018-10-24 22:13:26,293 INFO L168 Benchmark]: RCFGBuilder took 12957.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 473.2 MB). Peak memory consumption was 473.2 MB. Max. memory is 7.1 GB. [2018-10-24 22:13:26,294 INFO L168 Benchmark]: TraceAbstraction took 230860.08 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.0 GB). Peak memory consumption was 859.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:13:26,300 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1542.49 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: 140.0 MB). Peak memory consumption was 140.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 479.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -900.7 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 236.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12957.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 473.2 MB). Peak memory consumption was 473.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230860.08 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.0 GB). Peak memory consumption was 859.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 188]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 188). Cancelled while BasicCegarLoop was constructing difference of abstraction (4197states) and FLOYD_HOARE automaton (currently 9 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (243 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 230.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 118.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 730 SDtfs, 3785 SDslu, 479 SDs, 0 SdLazy, 6406 SolverSat, 2259 SolverUnsat, 24 SolverUnknown, 0 SolverNotchecked, 85.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 457 GetRequests, 407 SyntacticMatches, 18 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 77.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4197occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 30.8s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.994215784215784 AbsIntWeakeningRatio, 0.13636363636363635 AbsIntAvgWeakeningVarsNumRemoved, 856.2662337662338 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 56.2s InterpolantComputationTime, 506 NumberOfCodeBlocks, 506 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 643 ConstructedInterpolants, 141 QuantifiedInterpolants, 2142573 SizeOfPredicates, 3 NumberOfNonLiveVariables, 295 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 118/240 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown