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/Problem18_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:21:00,096 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:21:00,098 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:21:00,117 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:21:00,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:21:00,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:21:00,120 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:21:00,123 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:21:00,124 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:21:00,125 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:21:00,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:21:00,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:21:00,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:21:00,130 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:21:00,132 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:21:00,134 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:21:00,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:21:00,142 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:21:00,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:21:00,151 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:21:00,152 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:21:00,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:21:00,158 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 00:21:00,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:21:00,167 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:21:00,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:21:00,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:21:00,169 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 [2018-10-27 00:21:00,198 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:21:00,198 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:21:00,200 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:21:00,200 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:21:00,200 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:21:00,200 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:21:00,200 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:21:00,201 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:21:00,201 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 00:21:00,201 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:21:00,201 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:21:00,201 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:21:00,203 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:21:00,203 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:21:00,203 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:21:00,203 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:21:00,203 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:21:00,204 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:21:00,204 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:21:00,204 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:21:00,204 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:21:00,204 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:21:00,204 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:21:00,206 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:21:00,207 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:21:00,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:21:00,207 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:21:00,207 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:21:00,207 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:21:00,208 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:21:00,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:21:00,208 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:21:00,208 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 00:21:00,209 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 00:21:00,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:21:00,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:21:00,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:21:00,293 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:21:00,293 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:21:00,294 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c [2018-10-27 00:21:00,351 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a4c01033f/8e3010dbafbf425a921189e8832d655c/FLAG6a7d928a9 [2018-10-27 00:21:01,091 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:21:01,092 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c [2018-10-27 00:21:01,117 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a4c01033f/8e3010dbafbf425a921189e8832d655c/FLAG6a7d928a9 [2018-10-27 00:21:01,134 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a4c01033f/8e3010dbafbf425a921189e8832d655c [2018-10-27 00:21:01,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:21:01,145 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:21:01,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:21:01,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:21:01,151 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:21:01,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:21:01" (1/1) ... [2018-10-27 00:21:01,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bfe4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:01, skipping insertion in model container [2018-10-27 00:21:01,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:21:01" (1/1) ... [2018-10-27 00:21:01,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:21:01,295 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:21:02,309 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:21:02,316 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:21:02,785 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:21:02,820 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:21:02,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02 WrapperNode [2018-10-27 00:21:02,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:21:02,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:21:02,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:21:02,822 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:21:02,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:02,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:03,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:21:03,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:21:03,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:21:03,236 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:21:03,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:03,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:03,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:03,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:03,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:03,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:03,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (1/1) ... [2018-10-27 00:21:03,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:21:03,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:21:03,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:21:03,472 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:21:03,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (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 [2018-10-27 00:21:03,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:21:03,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:21:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 00:21:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 00:21:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 00:21:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 00:21:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:21:03,555 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:21:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:21:03,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:21:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:21:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:21:12,695 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:21:12,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:21:12 BoogieIcfgContainer [2018-10-27 00:21:12,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:21:12,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:21:12,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:21:12,701 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:21:12,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:21:01" (1/3) ... [2018-10-27 00:21:12,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c636d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:21:12, skipping insertion in model container [2018-10-27 00:21:12,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:02" (2/3) ... [2018-10-27 00:21:12,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c636d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:21:12, skipping insertion in model container [2018-10-27 00:21:12,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:21:12" (3/3) ... [2018-10-27 00:21:12,705 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label09_false-unreach-call.c [2018-10-27 00:21:12,716 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:21:12,725 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:21:12,744 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:21:12,789 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:21:12,789 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:21:12,789 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:21:12,789 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:21:12,790 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:21:12,790 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:21:12,790 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:21:12,790 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:21:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 00:21:12,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-27 00:21:12,847 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:12,848 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:21:12,850 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:12,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:12,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1936021327, now seen corresponding path program 1 times [2018-10-27 00:21:12,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:12,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:12,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:12,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:12,906 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:13,246 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:21:13,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:13,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:13,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:21:13,352 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:13,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:21:13,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:21:13,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:21:13,379 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-27 00:21:20,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:20,104 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-27 00:21:20,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:21:20,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-10-27 00:21:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:20,137 INFO L225 Difference]: With dead ends: 2251 [2018-10-27 00:21:20,137 INFO L226 Difference]: Without dead ends: 1474 [2018-10-27 00:21:20,149 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:21:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-27 00:21:20,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-27 00:21:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 00:21:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-10-27 00:21:20,294 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 17 [2018-10-27 00:21:20,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:20,295 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-10-27 00:21:20,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:21:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-10-27 00:21:20,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-27 00:21:20,300 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:20,300 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:21:20,301 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:20,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:20,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1492732416, now seen corresponding path program 1 times [2018-10-27 00:21:20,301 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:20,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:20,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:20,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:20,303 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:20,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:20,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:20,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:21:20,574 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:20,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:21:20,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:21:20,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:21:20,576 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-10-27 00:21:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:28,619 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-10-27 00:21:28,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:21:28,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2018-10-27 00:21:28,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:28,643 INFO L225 Difference]: With dead ends: 4419 [2018-10-27 00:21:28,643 INFO L226 Difference]: Without dead ends: 2951 [2018-10-27 00:21:28,649 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:21:28,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-27 00:21:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-10-27 00:21:28,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-10-27 00:21:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-10-27 00:21:28,736 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 87 [2018-10-27 00:21:28,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:28,737 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-10-27 00:21:28,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:21:28,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-10-27 00:21:28,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-27 00:21:28,740 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:28,741 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:21:28,741 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:28,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:28,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1467766747, now seen corresponding path program 1 times [2018-10-27 00:21:28,742 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:28,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:28,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:28,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:28,743 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:28,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:28,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:21:28,981 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:28,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:21:28,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:21:28,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:21:28,982 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-10-27 00:21:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:34,411 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-10-27 00:21:34,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:21:34,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-10-27 00:21:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:34,434 INFO L225 Difference]: With dead ends: 7345 [2018-10-27 00:21:34,435 INFO L226 Difference]: Without dead ends: 4426 [2018-10-27 00:21:34,443 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:21:34,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-10-27 00:21:34,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-10-27 00:21:34,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-10-27 00:21:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-10-27 00:21:34,572 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 88 [2018-10-27 00:21:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:34,572 INFO L481 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-10-27 00:21:34,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:21:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-10-27 00:21:34,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-27 00:21:34,579 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:34,580 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:21:34,580 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:34,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:34,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1043283703, now seen corresponding path program 1 times [2018-10-27 00:21:34,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:34,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:34,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:34,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:34,583 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:34,757 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:34,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:34,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:21:34,758 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:34,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:21:34,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:21:34,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:21:34,759 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-10-27 00:21:43,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:43,988 INFO L93 Difference]: Finished difference Result 14819 states and 21982 transitions. [2018-10-27 00:21:43,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:21:43,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2018-10-27 00:21:43,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:44,037 INFO L225 Difference]: With dead ends: 14819 [2018-10-27 00:21:44,037 INFO L226 Difference]: Without dead ends: 10434 [2018-10-27 00:21:44,060 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:21:44,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2018-10-27 00:21:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 10284. [2018-10-27 00:21:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10284 states. [2018-10-27 00:21:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10284 states to 10284 states and 13624 transitions. [2018-10-27 00:21:44,339 INFO L78 Accepts]: Start accepts. Automaton has 10284 states and 13624 transitions. Word has length 90 [2018-10-27 00:21:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:44,339 INFO L481 AbstractCegarLoop]: Abstraction has 10284 states and 13624 transitions. [2018-10-27 00:21:44,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:21:44,340 INFO L276 IsEmpty]: Start isEmpty. Operand 10284 states and 13624 transitions. [2018-10-27 00:21:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-27 00:21:44,350 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:44,351 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-27 00:21:44,351 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:44,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:44,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1013837730, now seen corresponding path program 1 times [2018-10-27 00:21:44,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:44,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:44,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:44,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:44,353 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-27 00:21:44,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:44,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:21:44,563 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:44,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:21:44,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:21:44,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:21:44,565 INFO L87 Difference]: Start difference. First operand 10284 states and 13624 transitions. Second operand 3 states. [2018-10-27 00:21:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:51,626 INFO L93 Difference]: Finished difference Result 28424 states and 38618 transitions. [2018-10-27 00:21:51,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:21:51,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-10-27 00:21:51,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:51,717 INFO L225 Difference]: With dead ends: 28424 [2018-10-27 00:21:51,718 INFO L226 Difference]: Without dead ends: 18146 [2018-10-27 00:21:51,761 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:21:51,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18146 states. [2018-10-27 00:21:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18146 to 18140. [2018-10-27 00:21:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18140 states. [2018-10-27 00:21:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18140 states to 18140 states and 22671 transitions. [2018-10-27 00:21:52,204 INFO L78 Accepts]: Start accepts. Automaton has 18140 states and 22671 transitions. Word has length 194 [2018-10-27 00:21:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:52,205 INFO L481 AbstractCegarLoop]: Abstraction has 18140 states and 22671 transitions. [2018-10-27 00:21:52,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:21:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 18140 states and 22671 transitions. [2018-10-27 00:21:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-10-27 00:21:52,214 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:52,215 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-27 00:21:52,215 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:52,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:52,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1598601286, now seen corresponding path program 1 times [2018-10-27 00:21:52,216 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:52,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:52,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:52,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:52,217 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:52,632 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:21:53,583 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 15 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:53,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:21:53,584 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:21:53,585 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 279 with the following transitions: [2018-10-27 00:21:53,587 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1659], [1661], [1664], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 00:21:53,663 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:21:53,663 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:21:57,396 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:21:57,398 INFO L272 AbstractInterpreter]: Visited 143 different actions 143 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 00:21:57,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:57,408 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:21:59,757 INFO L227 lantSequenceWeakener]: Weakened 270 states. On average, predicates are now at 77.33% of their original sizes. [2018-10-27 00:21:59,758 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:22:00,162 INFO L415 sIntCurrentIteration]: We unified 277 AI predicates to 277 [2018-10-27 00:22:00,162 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:22:00,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:22:00,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-10-27 00:22:00,164 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:22:00,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:22:00,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:22:00,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:22:00,165 INFO L87 Difference]: Start difference. First operand 18140 states and 22671 transitions. Second operand 7 states. [2018-10-27 00:22:10,189 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 00:23:44,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:23:44,900 INFO L93 Difference]: Finished difference Result 36979 states and 46074 transitions. [2018-10-27 00:23:44,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:23:44,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2018-10-27 00:23:44,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:23:44,955 INFO L225 Difference]: With dead ends: 36979 [2018-10-27 00:23:44,955 INFO L226 Difference]: Without dead ends: 18845 [2018-10-27 00:23:44,989 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 278 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:23:45,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18845 states. [2018-10-27 00:23:45,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18845 to 18843. [2018-10-27 00:23:45,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18843 states. [2018-10-27 00:23:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18843 states to 18843 states and 23386 transitions. [2018-10-27 00:23:45,330 INFO L78 Accepts]: Start accepts. Automaton has 18843 states and 23386 transitions. Word has length 278 [2018-10-27 00:23:45,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:23:45,330 INFO L481 AbstractCegarLoop]: Abstraction has 18843 states and 23386 transitions. [2018-10-27 00:23:45,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:23:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand 18843 states and 23386 transitions. [2018-10-27 00:23:45,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2018-10-27 00:23:45,339 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:23:45,340 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:23:45,340 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:23:45,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:23:45,341 INFO L82 PathProgramCache]: Analyzing trace with hash 543398500, now seen corresponding path program 1 times [2018-10-27 00:23:45,341 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:23:45,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:23:45,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:23:45,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:23:45,342 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:23:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:45,866 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 00:23:46,065 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 00:23:46,284 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 00:23:46,708 WARN L179 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-27 00:23:47,140 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-27 00:23:47,461 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 89 proven. 219 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 00:23:47,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:23:47,461 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:23:47,462 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 400 with the following transitions: [2018-10-27 00:23:47,462 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1659], [1661], [1664], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2188], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 00:23:47,472 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:23:47,473 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:24:01,560 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:24:01,561 INFO L272 AbstractInterpreter]: Visited 196 different actions 386 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 00:24:01,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:24:01,571 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:24:05,136 INFO L227 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 77.84% of their original sizes. [2018-10-27 00:24:05,136 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:24:44,466 INFO L415 sIntCurrentIteration]: We unified 398 AI predicates to 398 [2018-10-27 00:24:44,466 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:24:44,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:24:44,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [11] total 28 [2018-10-27 00:24:44,467 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:24:44,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-27 00:24:44,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-27 00:24:44,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-10-27 00:24:44,469 INFO L87 Difference]: Start difference. First operand 18843 states and 23386 transitions. Second operand 19 states. Received shutdown request... [2018-10-27 00:24:45,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 00:24:45,770 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 00:24:45,774 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 00:24:45,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:24:45 BoogieIcfgContainer [2018-10-27 00:24:45,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:24:45,776 INFO L168 Benchmark]: Toolchain (without parser) took 224630.96 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 1.6 GB in the end (delta: -184.0 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-27 00:24:45,777 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-10-27 00:24:45,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1675.02 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-27 00:24:45,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 413.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 766.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -941.4 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2018-10-27 00:24:45,779 INFO L168 Benchmark]: Boogie Preprocessor took 235.23 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2018-10-27 00:24:45,780 INFO L168 Benchmark]: RCFGBuilder took 9225.69 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 512.2 MB). Peak memory consumption was 512.2 MB. Max. memory is 7.1 GB. [2018-10-27 00:24:45,782 INFO L168 Benchmark]: TraceAbstraction took 213077.03 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 82.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-27 00:24:45,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 1675.02 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 413.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 766.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -941.4 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 235.23 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9225.69 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 512.2 MB). Peak memory consumption was 512.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213077.03 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 82.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 39]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 39). Cancelled while BasicCegarLoop was constructing difference of abstraction (18843states) and FLOYD_HOARE automaton (currently 5 states, 19 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 20 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 212.9s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 142.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2004 SDtfs, 10952 SDslu, 879 SDs, 0 SdLazy, 20898 SolverSat, 4770 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 714 GetRequests, 590 SyntacticMatches, 79 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 39.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18843occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 17.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9963794954374663 AbsIntWeakeningRatio, 0.08592592592592592 AbsIntAvgWeakeningVarsNumRemoved, 512.8562962962963 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 219 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1153 NumberOfCodeBlocks, 1153 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1146 ConstructedInterpolants, 0 QuantifiedInterpolants, 1811537 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 229/576 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown