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/Problem19_label27_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:01:06,458 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:01:06,461 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:01:06,473 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:01:06,474 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:01:06,475 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:01:06,477 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:01:06,478 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:01:06,480 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:01:06,481 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:01:06,482 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:01:06,482 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:01:06,483 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:01:06,484 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:01:06,485 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:01:06,486 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:01:06,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:01:06,488 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:01:06,491 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:01:06,492 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:01:06,493 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:01:06,494 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:01:06,497 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 23:01:06,510 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 23:01:06,536 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:01:06,536 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:01:06,537 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:01:06,537 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:01:06,538 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:01:06,538 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:01:06,538 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:01:06,538 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:01:06,538 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:01:06,538 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:01:06,539 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:01:06,539 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:01:06,539 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:01:06,540 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:01:06,540 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:01:06,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:01:06,540 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:01:06,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:01:06,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:01:06,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:01:06,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:01:06,541 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:01:06,541 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:01:06,542 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:01:06,542 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:01:06,542 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:01:06,542 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:01:06,542 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:01:06,543 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:01:06,543 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:01:06,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:01:06,543 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:01:06,543 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:01:06,543 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:01:06,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:01:06,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:01:06,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:01:06,614 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:01:06,614 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:01:06,615 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label27_false-unreach-call.c [2018-10-23 23:01:06,683 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a18c13eb/c799060501114dd686c9bfcd46cf79c3/FLAG06ed3ddd3 [2018-10-23 23:01:07,573 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:01:07,575 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label27_false-unreach-call.c [2018-10-23 23:01:07,622 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a18c13eb/c799060501114dd686c9bfcd46cf79c3/FLAG06ed3ddd3 [2018-10-23 23:01:07,642 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a18c13eb/c799060501114dd686c9bfcd46cf79c3 [2018-10-23 23:01:07,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:01:07,658 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:01:07,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:01:07,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:01:07,666 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:01:07,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:01:07" (1/1) ... [2018-10-23 23:01:07,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e73541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:07, skipping insertion in model container [2018-10-23 23:01:07,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:01:07" (1/1) ... [2018-10-23 23:01:07,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:01:07,975 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:01:10,014 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:01:10,019 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:01:11,238 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:01:11,290 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:01:11,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11 WrapperNode [2018-10-23 23:01:11,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:01:11,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:01:11,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:01:11,292 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:01:11,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:11,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:12,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:01:12,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:01:12,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:01:12,085 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:01:12,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:12,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:12,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:12,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:12,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:12,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:12,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... [2018-10-23 23:01:12,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:01:12,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:01:12,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:01:12,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:01:12,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:01:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:01:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:01:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-23 23:01:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-23 23:01:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-23 23:01:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-23 23:01:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-23 23:01:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-23 23:01:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-23 23:01:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-23 23:01:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-23 23:01:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-23 23:01:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:01:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:01:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:01:12,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:01:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:01:12,783 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:01:30,011 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:01:30,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:01:30 BoogieIcfgContainer [2018-10-23 23:01:30,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:01:30,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:01:30,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:01:30,016 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:01:30,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:01:07" (1/3) ... [2018-10-23 23:01:30,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9258863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:01:30, skipping insertion in model container [2018-10-23 23:01:30,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:01:11" (2/3) ... [2018-10-23 23:01:30,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9258863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:01:30, skipping insertion in model container [2018-10-23 23:01:30,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:01:30" (3/3) ... [2018-10-23 23:01:30,020 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label27_false-unreach-call.c [2018-10-23 23:01:30,029 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:01:30,040 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:01:30,057 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:01:30,111 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:01:30,112 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:01:30,112 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:01:30,112 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:01:30,112 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:01:30,112 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:01:30,112 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:01:30,112 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:01:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-23 23:01:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-23 23:01:30,178 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:01:30,179 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] [2018-10-23 23:01:30,181 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:01:30,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:01:30,187 INFO L82 PathProgramCache]: Analyzing trace with hash 510178580, now seen corresponding path program 1 times [2018-10-23 23:01:30,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:01:30,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:01:30,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:01:30,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:01:30,246 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:01:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:01:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:01:30,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:01:30,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 23:01:30,685 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:01:30,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 23:01:30,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 23:01:30,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 23:01:30,711 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-23 23:01:55,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:01:55,546 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-10-23 23:01:55,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:01:55,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-10-23 23:01:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:01:55,606 INFO L225 Difference]: With dead ends: 6465 [2018-10-23 23:01:55,607 INFO L226 Difference]: Without dead ends: 4681 [2018-10-23 23:01:55,623 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 [2018-10-23 23:01:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-10-23 23:01:55,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-10-23 23:01:55,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-10-23 23:01:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-10-23 23:01:55,858 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 34 [2018-10-23 23:01:55,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:01:55,859 INFO L481 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-10-23 23:01:55,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 23:01:55,859 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-10-23 23:01:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-23 23:01:55,866 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:01:55,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:01:55,867 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:01:55,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:01:55,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1924817033, now seen corresponding path program 1 times [2018-10-23 23:01:55,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:01:55,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:01:55,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:01:55,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:01:55,870 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:01:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:01:56,253 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:01:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:01:56,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:01:56,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:01:56,661 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:01:56,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:01:56,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:01:56,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:01:56,665 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-10-23 23:02:22,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:02:22,991 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-10-23 23:02:22,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:02:22,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-10-23 23:02:22,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:02:23,047 INFO L225 Difference]: With dead ends: 12097 [2018-10-23 23:02:23,048 INFO L226 Difference]: Without dead ends: 8903 [2018-10-23 23:02:23,063 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:02:23,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-10-23 23:02:23,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-10-23 23:02:23,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-10-23 23:02:23,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-10-23 23:02:23,301 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 106 [2018-10-23 23:02:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:02:23,303 INFO L481 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-10-23 23:02:23,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:02:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-10-23 23:02:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-23 23:02:23,315 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:02:23,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:02:23,315 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:02:23,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:02:23,316 INFO L82 PathProgramCache]: Analyzing trace with hash 289117920, now seen corresponding path program 1 times [2018-10-23 23:02:23,316 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:02:23,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:02:23,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:02:23,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:02:23,317 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:02:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:02:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:02:23,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:02:23,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:02:23,523 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:02:23,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:02:23,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:02:23,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:02:23,524 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-10-23 23:02:51,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:02:51,413 INFO L93 Difference]: Finished difference Result 29446 states and 43442 transitions. [2018-10-23 23:02:51,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 23:02:51,415 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-10-23 23:02:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:02:51,483 INFO L225 Difference]: With dead ends: 29446 [2018-10-23 23:02:51,483 INFO L226 Difference]: Without dead ends: 20606 [2018-10-23 23:02:51,523 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:02:51,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20606 states. [2018-10-23 23:02:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20606 to 20450. [2018-10-23 23:02:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20450 states. [2018-10-23 23:02:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20450 states to 20450 states and 28694 transitions. [2018-10-23 23:02:51,991 INFO L78 Accepts]: Start accepts. Automaton has 20450 states and 28694 transitions. Word has length 108 [2018-10-23 23:02:51,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:02:51,992 INFO L481 AbstractCegarLoop]: Abstraction has 20450 states and 28694 transitions. [2018-10-23 23:02:51,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:02:51,993 INFO L276 IsEmpty]: Start isEmpty. Operand 20450 states and 28694 transitions. [2018-10-23 23:02:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-23 23:02:51,998 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:02:51,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:02:51,999 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:02:51,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:02:51,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1954797511, now seen corresponding path program 1 times [2018-10-23 23:02:51,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:02:52,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:02:52,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:02:52,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:02:52,003 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:02:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:02:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:02:52,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:02:52,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:02:52,495 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:02:52,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:02:52,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:02:52,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:02:52,497 INFO L87 Difference]: Start difference. First operand 20450 states and 28694 transitions. Second operand 6 states. [2018-10-23 23:03:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:03:14,350 INFO L93 Difference]: Finished difference Result 62305 states and 89760 transitions. [2018-10-23 23:03:14,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 23:03:14,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-10-23 23:03:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:03:14,521 INFO L225 Difference]: With dead ends: 62305 [2018-10-23 23:03:14,521 INFO L226 Difference]: Without dead ends: 41861 [2018-10-23 23:03:14,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:03:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41861 states. [2018-10-23 23:03:15,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41861 to 41524. [2018-10-23 23:03:15,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41524 states. [2018-10-23 23:03:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41524 states to 41524 states and 57773 transitions. [2018-10-23 23:03:15,563 INFO L78 Accepts]: Start accepts. Automaton has 41524 states and 57773 transitions. Word has length 116 [2018-10-23 23:03:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:03:15,563 INFO L481 AbstractCegarLoop]: Abstraction has 41524 states and 57773 transitions. [2018-10-23 23:03:15,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:03:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 41524 states and 57773 transitions. [2018-10-23 23:03:15,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-23 23:03:15,567 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:03:15,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:03:15,568 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:03:15,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:03:15,572 INFO L82 PathProgramCache]: Analyzing trace with hash -982448335, now seen corresponding path program 1 times [2018-10-23 23:03:15,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:03:15,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:03:15,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:03:15,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:03:15,573 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:03:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:03:16,281 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2018-10-23 23:03:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:03:16,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:03:16,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:03:16,297 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:03:16,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:03:16,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:03:16,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:03:16,299 INFO L87 Difference]: Start difference. First operand 41524 states and 57773 transitions. Second operand 5 states. [2018-10-23 23:03:51,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:03:51,828 INFO L93 Difference]: Finished difference Result 125889 states and 180467 transitions. [2018-10-23 23:03:51,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 23:03:51,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2018-10-23 23:03:51,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:03:52,105 INFO L225 Difference]: With dead ends: 125889 [2018-10-23 23:03:52,105 INFO L226 Difference]: Without dead ends: 84371 [2018-10-23 23:03:52,175 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 23:03:52,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84371 states. [2018-10-23 23:03:53,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84371 to 83175. [2018-10-23 23:03:53,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83175 states. [2018-10-23 23:03:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83175 states to 83175 states and 107209 transitions. [2018-10-23 23:03:53,485 INFO L78 Accepts]: Start accepts. Automaton has 83175 states and 107209 transitions. Word has length 136 [2018-10-23 23:03:53,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:03:53,485 INFO L481 AbstractCegarLoop]: Abstraction has 83175 states and 107209 transitions. [2018-10-23 23:03:53,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:03:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 83175 states and 107209 transitions. [2018-10-23 23:03:53,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-23 23:03:53,489 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:03:53,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:03:53,490 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:03:53,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:03:53,490 INFO L82 PathProgramCache]: Analyzing trace with hash -674403138, now seen corresponding path program 1 times [2018-10-23 23:03:53,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:03:53,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:03:53,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:03:53,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:03:53,492 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:03:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:03:53,775 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:03:54,020 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:03:54,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:03:54,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:03:54,020 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:03:54,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:03:54,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:03:54,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:03:54,022 INFO L87 Difference]: Start difference. First operand 83175 states and 107209 transitions. Second operand 6 states. [2018-10-23 23:04:09,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:04:09,748 INFO L93 Difference]: Finished difference Result 188159 states and 253150 transitions. [2018-10-23 23:04:09,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:04:09,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2018-10-23 23:04:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:04:10,163 INFO L225 Difference]: With dead ends: 188159 [2018-10-23 23:04:10,163 INFO L226 Difference]: Without dead ends: 104990 [2018-10-23 23:04:10,290 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:04:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104990 states. [2018-10-23 23:04:12,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104990 to 104223. [2018-10-23 23:04:12,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104223 states. [2018-10-23 23:04:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104223 states to 104223 states and 134727 transitions. [2018-10-23 23:04:12,597 INFO L78 Accepts]: Start accepts. Automaton has 104223 states and 134727 transitions. Word has length 199 [2018-10-23 23:04:12,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:04:12,597 INFO L481 AbstractCegarLoop]: Abstraction has 104223 states and 134727 transitions. [2018-10-23 23:04:12,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:04:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 104223 states and 134727 transitions. [2018-10-23 23:04:12,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2018-10-23 23:04:12,611 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:04:12,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:04:12,611 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:04:12,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:04:12,612 INFO L82 PathProgramCache]: Analyzing trace with hash 924629389, now seen corresponding path program 1 times [2018-10-23 23:04:12,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:04:12,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:04:12,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:04:12,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:04:12,613 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:04:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:04:13,135 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:04:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-23 23:04:13,577 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:04:13,577 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:04:13,578 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 522 with the following transitions: [2018-10-23 23:04:13,583 INFO L202 CegarAbsIntRunner]: [0], [1], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5093], [5226], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5398], [5400], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-10-23 23:04:13,696 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:04:13,696 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:04:32,705 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 23:04:32,762 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:04:32,763 INFO L272 AbstractInterpreter]: Visited 488 different actions 488 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-23 23:04:32,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:04:32,806 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:04:38,074 INFO L232 lantSequenceWeakener]: Weakened 513 states. On average, predicates are now at 75.13% of their original sizes. [2018-10-23 23:04:38,075 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 23:04:38,697 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 23:04:38,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 23:04:38,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2018-10-23 23:04:38,699 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:04:38,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-23 23:04:38,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-23 23:04:38,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:04:38,700 INFO L87 Difference]: Start difference. First operand 104223 states and 134727 transitions. Second operand 9 states. Received shutdown request... [2018-10-23 23:04:50,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:04:50,634 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:04:50,640 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:04:50,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:04:50 BoogieIcfgContainer [2018-10-23 23:04:50,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:04:50,642 INFO L168 Benchmark]: Toolchain (without parser) took 222984.70 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -676.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-23 23:04:50,643 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 23:04:50,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3631.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-23 23:04:50,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 793.41 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 850.9 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-23 23:04:50,646 INFO L168 Benchmark]: Boogie Preprocessor took 622.51 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. [2018-10-23 23:04:50,647 INFO L168 Benchmark]: RCFGBuilder took 17304.32 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 187.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 478.0 MB). Peak memory consumption was 674.5 MB. Max. memory is 7.1 GB. [2018-10-23 23:04:50,648 INFO L168 Benchmark]: TraceAbstraction took 200627.83 ms. Allocated memory was 2.6 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -346.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-23 23:04:50,654 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3631.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 793.41 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 850.9 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 622.51 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17304.32 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 187.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 478.0 MB). Peak memory consumption was 674.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200627.83 ms. Allocated memory was 2.6 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -346.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 97). Cancelled while BasicCegarLoop was constructing difference of abstraction (104223states) and FLOYD_HOARE automaton (currently 7 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (282 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 200.5s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 165.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4407 SDtfs, 39469 SDslu, 4877 SDs, 0 SdLazy, 59676 SolverSat, 14090 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 133.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 576 GetRequests, 529 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104223occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.998292899408284 AbsIntWeakeningRatio, 0.04807692307692308 AbsIntAvgWeakeningVarsNumRemoved, 1075.5134615384616 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 3994 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1213 ConstructedInterpolants, 0 QuantifiedInterpolants, 1280030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 139/162 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown