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/Problem13_label45_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:22:39,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:22:39,474 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:22:39,493 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:22:39,493 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:22:39,494 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:22:39,497 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:22:39,499 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:22:39,503 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:22:39,504 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:22:39,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:22:39,513 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:22:39,517 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:22:39,518 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:22:39,519 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:22:39,520 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:22:39,524 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:22:39,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:22:39,531 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:22:39,533 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:22:39,537 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:22:39,538 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:22:39,543 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 22:22:39,553 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 22:22:39,568 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:22:39,568 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:22:39,569 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:22:39,569 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:22:39,569 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:22:39,569 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:22:39,570 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:22:39,570 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:22:39,570 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:22:39,570 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:22:39,570 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:22:39,571 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:22:39,571 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:22:39,571 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:22:39,572 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:22:39,572 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:22:39,572 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:22:39,572 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:22:39,572 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:22:39,573 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:22:39,573 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:22:39,573 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:22:39,573 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:22:39,573 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:22:39,574 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:22:39,574 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:22:39,574 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:22:39,574 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:22:39,575 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:22:39,575 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:22:39,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:22:39,575 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:22:39,575 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:22:39,576 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:22:39,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:22:39,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:22:39,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:22:39,643 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:22:39,644 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:22:39,645 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label45_false-unreach-call.c [2018-10-23 22:22:39,719 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b6e9d88f9/b8f00b70aaab4dd0bdaffa64bd3821b8/FLAG26217e815 [2018-10-23 22:22:40,570 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:22:40,571 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label45_false-unreach-call.c [2018-10-23 22:22:40,614 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b6e9d88f9/b8f00b70aaab4dd0bdaffa64bd3821b8/FLAG26217e815 [2018-10-23 22:22:40,638 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b6e9d88f9/b8f00b70aaab4dd0bdaffa64bd3821b8 [2018-10-23 22:22:40,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:22:40,653 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:22:40,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:22:40,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:22:40,662 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:22:40,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:22:40" (1/1) ... [2018-10-23 22:22:40,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d48a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:40, skipping insertion in model container [2018-10-23 22:22:40,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:22:40" (1/1) ... [2018-10-23 22:22:40,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:22:40,864 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:22:42,399 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:22:42,406 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:22:43,161 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:22:43,205 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:22:43,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43 WrapperNode [2018-10-23 22:22:43,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:22:43,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:22:43,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:22:43,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:22:43,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:43,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:43,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:22:43,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:22:43,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:22:43,890 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:22:43,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:43,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:43,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:43,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:44,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:44,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:44,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (1/1) ... [2018-10-23 22:22:44,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:22:44,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:22:44,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:22:44,225 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:22:44,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (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 22:22:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:22:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:22:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-23 22:22:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-23 22:22:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-23 22:22:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-23 22:22:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-23 22:22:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-23 22:22:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:22:44,300 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:22:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:22:44,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:22:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:22:44,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:22:55,122 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:22:55,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:22:55 BoogieIcfgContainer [2018-10-23 22:22:55,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:22:55,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:22:55,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:22:55,128 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:22:55,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:22:40" (1/3) ... [2018-10-23 22:22:55,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569efd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:22:55, skipping insertion in model container [2018-10-23 22:22:55,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:22:43" (2/3) ... [2018-10-23 22:22:55,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569efd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:22:55, skipping insertion in model container [2018-10-23 22:22:55,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:22:55" (3/3) ... [2018-10-23 22:22:55,132 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label45_false-unreach-call.c [2018-10-23 22:22:55,144 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:22:55,157 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:22:55,176 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:22:55,226 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:22:55,226 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:22:55,227 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:22:55,227 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:22:55,227 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:22:55,227 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:22:55,227 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:22:55,227 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:22:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-23 22:22:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-23 22:22:55,282 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:22:55,283 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:22:55,285 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:22:55,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:22:55,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1438906236, now seen corresponding path program 1 times [2018-10-23 22:22:55,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:22:55,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:55,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:22:55,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:55,353 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:22:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:22:55,681 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 22:22:55,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:22:55,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:22:55,686 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:22:55,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:22:55,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:22:55,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:22:55,724 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-23 22:23:13,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:23:13,184 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-10-23 22:23:13,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:23:13,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-23 22:23:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:23:13,241 INFO L225 Difference]: With dead ends: 4063 [2018-10-23 22:23:13,242 INFO L226 Difference]: Without dead ends: 2937 [2018-10-23 22:23:13,256 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 22:23:13,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-10-23 22:23:13,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-10-23 22:23:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-10-23 22:23:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-10-23 22:23:13,452 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 14 [2018-10-23 22:23:13,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:23:13,452 INFO L481 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-10-23 22:23:13,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:23:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-10-23 22:23:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-23 22:23:13,460 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:23:13,460 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:23:13,460 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:23:13,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:23:13,461 INFO L82 PathProgramCache]: Analyzing trace with hash 78818025, now seen corresponding path program 1 times [2018-10-23 22:23:13,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:23:13,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:13,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:23:13,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:13,463 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:23:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:23:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:23:13,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:23:13,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:23:13,879 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:23:13,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:23:13,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:23:13,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:23:13,882 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-10-23 22:23:30,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:23:30,034 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-10-23 22:23:30,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:23:30,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2018-10-23 22:23:30,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:23:30,206 INFO L225 Difference]: With dead ends: 7277 [2018-10-23 22:23:30,207 INFO L226 Difference]: Without dead ends: 5301 [2018-10-23 22:23:30,219 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 22:23:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-10-23 22:23:30,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-10-23 22:23:30,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-10-23 22:23:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-10-23 22:23:30,386 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 85 [2018-10-23 22:23:30,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:23:30,386 INFO L481 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-10-23 22:23:30,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:23:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-10-23 22:23:30,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-23 22:23:30,390 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:23:30,390 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:23:30,391 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:23:30,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:23:30,391 INFO L82 PathProgramCache]: Analyzing trace with hash 418123736, now seen corresponding path program 1 times [2018-10-23 22:23:30,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:23:30,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:30,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:23:30,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:30,393 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:23:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:23:30,649 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:23:30,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:23:30,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:23:30,650 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:23:30,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:23:30,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:23:30,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:23:30,652 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-10-23 22:23:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:23:42,776 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-10-23 22:23:42,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:23:42,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-10-23 22:23:42,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:23:42,820 INFO L225 Difference]: With dead ends: 13914 [2018-10-23 22:23:42,821 INFO L226 Difference]: Without dead ends: 8668 [2018-10-23 22:23:42,844 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:23:42,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-10-23 22:23:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-10-23 22:23:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-23 22:23:43,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-10-23 22:23:43,060 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 88 [2018-10-23 22:23:43,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:23:43,061 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-10-23 22:23:43,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:23:43,061 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-10-23 22:23:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-10-23 22:23:43,072 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:23:43,073 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:23:43,073 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:23:43,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:23:43,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1382541628, now seen corresponding path program 1 times [2018-10-23 22:23:43,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:23:43,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:43,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:23:43,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:23:43,076 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:23:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:23:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:23:43,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:23:43,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 22:23:43,455 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:23:43,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 22:23:43,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 22:23:43,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 22:23:43,456 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-10-23 22:24:00,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:24:00,448 INFO L93 Difference]: Finished difference Result 25983 states and 40339 transitions. [2018-10-23 22:24:00,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 22:24:00,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2018-10-23 22:24:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:24:00,522 INFO L225 Difference]: With dead ends: 25983 [2018-10-23 22:24:00,523 INFO L226 Difference]: Without dead ends: 17384 [2018-10-23 22:24:00,557 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:24:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17384 states. [2018-10-23 22:24:00,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17384 to 17119. [2018-10-23 22:24:00,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17119 states. [2018-10-23 22:24:00,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17119 states to 17119 states and 24326 transitions. [2018-10-23 22:24:00,977 INFO L78 Accepts]: Start accepts. Automaton has 17119 states and 24326 transitions. Word has length 98 [2018-10-23 22:24:00,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:24:00,978 INFO L481 AbstractCegarLoop]: Abstraction has 17119 states and 24326 transitions. [2018-10-23 22:24:00,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 22:24:00,978 INFO L276 IsEmpty]: Start isEmpty. Operand 17119 states and 24326 transitions. [2018-10-23 22:24:00,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-23 22:24:00,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:24:00,981 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:24:00,981 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:24:00,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:24:00,982 INFO L82 PathProgramCache]: Analyzing trace with hash -916894984, now seen corresponding path program 1 times [2018-10-23 22:24:00,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:24:00,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:00,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:24:00,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:00,983 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:24:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:24:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:24:01,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:24:01,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:24:01,115 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:24:01,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:24:01,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:24:01,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:24:01,116 INFO L87 Difference]: Start difference. First operand 17119 states and 24326 transitions. Second operand 3 states. [2018-10-23 22:24:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:24:08,844 INFO L93 Difference]: Finished difference Result 47368 states and 71014 transitions. [2018-10-23 22:24:08,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:24:08,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2018-10-23 22:24:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:24:08,991 INFO L225 Difference]: With dead ends: 47368 [2018-10-23 22:24:08,991 INFO L226 Difference]: Without dead ends: 30255 [2018-10-23 22:24:09,077 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 [2018-10-23 22:24:09,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30255 states. [2018-10-23 22:24:10,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30255 to 30253. [2018-10-23 22:24:10,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30253 states. [2018-10-23 22:24:10,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30253 states to 30253 states and 42729 transitions. [2018-10-23 22:24:10,172 INFO L78 Accepts]: Start accepts. Automaton has 30253 states and 42729 transitions. Word has length 115 [2018-10-23 22:24:10,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:24:10,173 INFO L481 AbstractCegarLoop]: Abstraction has 30253 states and 42729 transitions. [2018-10-23 22:24:10,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:24:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 30253 states and 42729 transitions. [2018-10-23 22:24:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-23 22:24:10,177 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:24:10,177 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:24:10,177 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:24:10,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:24:10,178 INFO L82 PathProgramCache]: Analyzing trace with hash 196829947, now seen corresponding path program 1 times [2018-10-23 22:24:10,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:24:10,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:10,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:24:10,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:10,180 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:24:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:24:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:24:10,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:24:10,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:24:10,793 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:24:10,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:24:10,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:24:10,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:24:10,794 INFO L87 Difference]: Start difference. First operand 30253 states and 42729 transitions. Second operand 6 states. [2018-10-23 22:24:31,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:24:31,012 INFO L93 Difference]: Finished difference Result 98436 states and 150304 transitions. [2018-10-23 22:24:31,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:24:31,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-10-23 22:24:31,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:24:31,300 INFO L225 Difference]: With dead ends: 98436 [2018-10-23 22:24:31,301 INFO L226 Difference]: Without dead ends: 68189 [2018-10-23 22:24:31,414 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 22:24:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68189 states. [2018-10-23 22:24:32,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68189 to 68121. [2018-10-23 22:24:32,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68121 states. [2018-10-23 22:24:32,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68121 states to 68121 states and 98142 transitions. [2018-10-23 22:24:32,919 INFO L78 Accepts]: Start accepts. Automaton has 68121 states and 98142 transitions. Word has length 156 [2018-10-23 22:24:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:24:32,919 INFO L481 AbstractCegarLoop]: Abstraction has 68121 states and 98142 transitions. [2018-10-23 22:24:32,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:24:32,920 INFO L276 IsEmpty]: Start isEmpty. Operand 68121 states and 98142 transitions. [2018-10-23 22:24:32,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-10-23 22:24:32,927 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:24:32,927 INFO L375 BasicCegarLoop]: trace histogram [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, 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 22:24:32,927 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:24:32,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:24:32,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1968456128, now seen corresponding path program 1 times [2018-10-23 22:24:32,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:24:32,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:32,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:24:32,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:32,938 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:24:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:24:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-10-23 22:24:33,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:24:33,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:24:33,165 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:24:33,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:24:33,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:24:33,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:24:33,166 INFO L87 Difference]: Start difference. First operand 68121 states and 98142 transitions. Second operand 3 states. [2018-10-23 22:24:41,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:24:41,095 INFO L93 Difference]: Finished difference Result 136244 states and 197301 transitions. [2018-10-23 22:24:41,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:24:41,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2018-10-23 22:24:41,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:24:41,349 INFO L225 Difference]: With dead ends: 136244 [2018-10-23 22:24:41,350 INFO L226 Difference]: Without dead ends: 68129 [2018-10-23 22:24:41,519 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 [2018-10-23 22:24:41,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68129 states. [2018-10-23 22:24:42,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68129 to 68124. [2018-10-23 22:24:42,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68124 states. [2018-10-23 22:24:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68124 states to 68124 states and 92387 transitions. [2018-10-23 22:24:42,694 INFO L78 Accepts]: Start accepts. Automaton has 68124 states and 92387 transitions. Word has length 216 [2018-10-23 22:24:42,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:24:42,694 INFO L481 AbstractCegarLoop]: Abstraction has 68124 states and 92387 transitions. [2018-10-23 22:24:42,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:24:42,695 INFO L276 IsEmpty]: Start isEmpty. Operand 68124 states and 92387 transitions. [2018-10-23 22:24:42,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-23 22:24:42,701 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:24:42,701 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:24:42,701 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:24:42,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:24:42,702 INFO L82 PathProgramCache]: Analyzing trace with hash -967021314, now seen corresponding path program 1 times [2018-10-23 22:24:42,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:24:42,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:42,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:24:42,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:42,703 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:24:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:24:43,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:24:43,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:24:43,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:24:43,016 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:24:43,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:24:43,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:24:43,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:24:43,018 INFO L87 Difference]: Start difference. First operand 68124 states and 92387 transitions. Second operand 6 states. [2018-10-23 22:24:55,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:24:55,066 INFO L93 Difference]: Finished difference Result 176296 states and 264857 transitions. [2018-10-23 22:24:55,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:24:55,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 224 [2018-10-23 22:24:55,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:24:55,495 INFO L225 Difference]: With dead ends: 176296 [2018-10-23 22:24:55,495 INFO L226 Difference]: Without dead ends: 108178 [2018-10-23 22:24:55,654 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 22:24:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108178 states. [2018-10-23 22:24:58,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108178 to 107848. [2018-10-23 22:24:58,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107848 states. [2018-10-23 22:24:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107848 states to 107848 states and 147774 transitions. [2018-10-23 22:24:58,574 INFO L78 Accepts]: Start accepts. Automaton has 107848 states and 147774 transitions. Word has length 224 [2018-10-23 22:24:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:24:58,574 INFO L481 AbstractCegarLoop]: Abstraction has 107848 states and 147774 transitions. [2018-10-23 22:24:58,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:24:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 107848 states and 147774 transitions. [2018-10-23 22:24:58,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-10-23 22:24:58,584 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:24:58,584 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:24:58,584 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:24:58,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:24:58,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1811019067, now seen corresponding path program 1 times [2018-10-23 22:24:58,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:24:58,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:58,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:24:58,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:24:58,586 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:24:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:24:58,882 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-10-23 22:24:58,915 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-10-23 22:24:58,916 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:24:58,916 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:24:58,917 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 249 with the following transitions: [2018-10-23 22:24:58,920 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2639], [2641], [2644], [2652], [2660], [2668], [2676], [2684], [2692], [2700], [2708], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3320], [3321], [3325], [3329], [3333], [3344], [3355], [3358], [3361], [3365], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-23 22:24:58,999 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:24:59,000 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:25:07,821 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:25:07,822 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-23 22:25:07,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:25:07,832 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:25:12,358 INFO L232 lantSequenceWeakener]: Weakened 225 states. On average, predicates are now at 70.98% of their original sizes. [2018-10-23 22:25:12,359 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:25:13,951 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:25:13,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:25:13,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [3] total 12 [2018-10-23 22:25:13,952 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:25:13,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-23 22:25:13,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-23 22:25:13,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-23 22:25:13,953 INFO L87 Difference]: Start difference. First operand 107848 states and 147774 transitions. Second operand 11 states. [2018-10-23 22:26:02,531 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-23 22:26:19,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 22:26:19,008 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:26:19,014 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:26:19,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:26:19 BoogieIcfgContainer [2018-10-23 22:26:19,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:26:19,015 INFO L168 Benchmark]: Toolchain (without parser) took 218363.37 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-23 22:26:19,016 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:26:19,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2551.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:26:19,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 682.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 819.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-23 22:26:19,019 INFO L168 Benchmark]: Boogie Preprocessor took 334.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2018-10-23 22:26:19,020 INFO L168 Benchmark]: RCFGBuilder took 10898.75 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 206.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -24.2 MB). Peak memory consumption was 687.5 MB. Max. memory is 7.1 GB. [2018-10-23 22:26:19,021 INFO L168 Benchmark]: TraceAbstraction took 203889.69 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: -544.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-23 22:26:19,026 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2551.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 682.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 819.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 334.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10898.75 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 206.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -24.2 MB). Peak memory consumption was 687.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203889.69 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: -544.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 33). Cancelled while BasicCegarLoop was constructing difference of abstraction (107848states) and FLOYD_HOARE automaton (currently 10 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (535 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 203.7s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 177.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5459 SDtfs, 24824 SDslu, 3587 SDs, 0 SdLazy, 40055 SolverSat, 11879 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 135.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 312 GetRequests, 260 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107848occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9962379321083774 AbsIntWeakeningRatio, 0.1214574898785425 AbsIntAvgWeakeningVarsNumRemoved, 42.65182186234818 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 1737 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1244 NumberOfCodeBlocks, 1244 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1235 ConstructedInterpolants, 0 QuantifiedInterpolants, 705918 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 275/277 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown