java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:34:06,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:34:06,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:34:06,730 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:34:06,730 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:34:06,731 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:34:06,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:34:06,734 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:34:06,736 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:34:06,737 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:34:06,738 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:34:06,738 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:34:06,739 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:34:06,740 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:34:06,741 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:34:06,742 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:34:06,743 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:34:06,744 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:34:06,747 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:34:06,748 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:34:06,749 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:34:06,750 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:34:06,753 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 00:34:06,753 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 00:34:06,753 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 00:34:06,754 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 00:34:06,755 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 00:34:06,756 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 00:34:06,757 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 00:34:06,758 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 00:34:06,758 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 00:34:06,759 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 00:34:06,759 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 00:34:06,760 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 00:34:06,761 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 00:34:06,761 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 00:34:06,762 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 00:34:06,777 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:34:06,777 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:34:06,778 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:34:06,778 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:34:06,779 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:34:06,779 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:34:06,779 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:34:06,779 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:34:06,779 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:34:06,780 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:34:06,780 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:34:06,780 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:34:06,780 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:34:06,780 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:34:06,780 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:34:06,781 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:34:06,781 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:34:06,781 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:34:06,781 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:34:06,781 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:34:06,782 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:34:06,782 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:34:06,782 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:34:06,782 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:34:06,782 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:34:06,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:34:06,783 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:34:06,783 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:34:06,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:34:06,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:34:06,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:34:06,844 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:34:06,844 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:34:06,845 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c [2018-07-24 00:34:07,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f0c4f1c/04a1b64192f040d1a018b542c83c9a91/FLAG79fda07ac [2018-07-24 00:34:07,678 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:34:07,679 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c [2018-07-24 00:34:07,717 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f0c4f1c/04a1b64192f040d1a018b542c83c9a91/FLAG79fda07ac [2018-07-24 00:34:07,740 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f0c4f1c/04a1b64192f040d1a018b542c83c9a91 [2018-07-24 00:34:07,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:34:07,756 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:34:07,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:34:07,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:34:07,768 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:34:07,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:34:07" (1/1) ... [2018-07-24 00:34:07,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6375fbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:07, skipping insertion in model container [2018-07-24 00:34:07,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:34:07" (1/1) ... [2018-07-24 00:34:08,183 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:34:09,339 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:34:09,358 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:34:10,408 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:34:10,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10 WrapperNode [2018-07-24 00:34:10,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:34:10,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:34:10,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:34:10,669 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:34:10,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:10,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:11,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:34:11,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:34:11,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:34:11,154 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:34:11,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:11,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:12,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:12,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:12,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:12,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:12,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... [2018-07-24 00:34:12,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:34:12,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:34:12,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:34:12,331 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:34:12,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-24 00:34:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:34:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:34:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:34:21,520 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:34:21,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:34:21 BoogieIcfgContainer [2018-07-24 00:34:21,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:34:21,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:34:21,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:34:21,525 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:34:21,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:34:07" (1/3) ... [2018-07-24 00:34:21,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f40e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:34:21, skipping insertion in model container [2018-07-24 00:34:21,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:34:10" (2/3) ... [2018-07-24 00:34:21,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f40e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:34:21, skipping insertion in model container [2018-07-24 00:34:21,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:34:21" (3/3) ... [2018-07-24 00:34:21,529 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label52_false-unreach-call.c [2018-07-24 00:34:21,537 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:34:21,545 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:34:21,599 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:34:21,599 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:34:21,600 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:34:21,600 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:34:21,600 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:34:21,600 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:34:21,600 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:34:21,600 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:34:21,601 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:34:21,631 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-07-24 00:34:21,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-24 00:34:21,638 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:34:21,639 INFO L353 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] [2018-07-24 00:34:21,640 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:34:21,645 INFO L82 PathProgramCache]: Analyzing trace with hash -692138422, now seen corresponding path program 1 times [2018-07-24 00:34:21,647 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:34:21,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:34:21,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:21,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:34:21,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:34:22,084 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-24 00:34:22,481 WARN L169 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-07-24 00:34:23,016 WARN L169 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 16 [2018-07-24 00:34:23,654 WARN L169 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2018-07-24 00:34:23,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:34:23,930 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:34:23,931 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 00:34:23,936 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 00:34:23,952 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 00:34:23,953 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:34:23,955 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 7 states. [2018-07-24 00:34:24,154 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-24 00:34:46,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:34:46,179 INFO L93 Difference]: Finished difference Result 5413 states and 10642 transitions. [2018-07-24 00:34:46,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 00:34:46,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-07-24 00:34:46,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:34:46,231 INFO L225 Difference]: With dead ends: 5413 [2018-07-24 00:34:46,232 INFO L226 Difference]: Without dead ends: 4578 [2018-07-24 00:34:46,242 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-07-24 00:34:46,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2018-07-24 00:34:46,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 3072. [2018-07-24 00:34:46,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3072 states. [2018-07-24 00:34:46,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4384 transitions. [2018-07-24 00:34:46,442 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4384 transitions. Word has length 31 [2018-07-24 00:34:46,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:34:46,443 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 4384 transitions. [2018-07-24 00:34:46,443 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 00:34:46,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4384 transitions. [2018-07-24 00:34:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-24 00:34:46,451 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:34:46,451 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:34:46,451 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:34:46,452 INFO L82 PathProgramCache]: Analyzing trace with hash -2123542619, now seen corresponding path program 1 times [2018-07-24 00:34:46,452 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:34:46,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:34:46,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:46,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:34:46,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:34:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 121 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:34:46,970 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:34:46,970 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:34:46,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:34:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:34:47,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:34:47,292 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:34:47,320 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:34:47,321 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-07-24 00:34:47,323 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:34:47,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:34:47,324 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:34:47,324 INFO L87 Difference]: Start difference. First operand 3072 states and 4384 transitions. Second operand 6 states. [2018-07-24 00:35:09,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:35:09,312 INFO L93 Difference]: Finished difference Result 15950 states and 24157 transitions. [2018-07-24 00:35:09,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 00:35:09,313 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 173 [2018-07-24 00:35:09,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:35:09,359 INFO L225 Difference]: With dead ends: 15950 [2018-07-24 00:35:09,359 INFO L226 Difference]: Without dead ends: 10621 [2018-07-24 00:35:09,368 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 174 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:35:09,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2018-07-24 00:35:09,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 4575. [2018-07-24 00:35:09,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4575 states. [2018-07-24 00:35:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 5823 transitions. [2018-07-24 00:35:09,491 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 5823 transitions. Word has length 173 [2018-07-24 00:35:09,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:35:09,496 INFO L471 AbstractCegarLoop]: Abstraction has 4575 states and 5823 transitions. [2018-07-24 00:35:09,496 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:35:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 5823 transitions. [2018-07-24 00:35:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-07-24 00:35:09,504 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:35:09,504 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:35:09,505 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:35:09,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1384179756, now seen corresponding path program 1 times [2018-07-24 00:35:09,505 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:35:09,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:35:09,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:09,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:09,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-07-24 00:35:10,205 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:35:10,205 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:35:10,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:10,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:35:10,460 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 00:35:10,493 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:35:10,494 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-24 00:35:10,495 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:35:10,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:35:10,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:35:10,496 INFO L87 Difference]: Start difference. First operand 4575 states and 5823 transitions. Second operand 5 states. [2018-07-24 00:35:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:35:22,974 INFO L93 Difference]: Finished difference Result 23436 states and 32015 transitions. [2018-07-24 00:35:22,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 00:35:22,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2018-07-24 00:35:22,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:35:23,037 INFO L225 Difference]: With dead ends: 23436 [2018-07-24 00:35:23,038 INFO L226 Difference]: Without dead ends: 18863 [2018-07-24 00:35:23,047 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:35:23,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18863 states. [2018-07-24 00:35:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18863 to 18863. [2018-07-24 00:35:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18863 states. [2018-07-24 00:35:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18863 states to 18863 states and 23542 transitions. [2018-07-24 00:35:23,392 INFO L78 Accepts]: Start accepts. Automaton has 18863 states and 23542 transitions. Word has length 243 [2018-07-24 00:35:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:35:23,393 INFO L471 AbstractCegarLoop]: Abstraction has 18863 states and 23542 transitions. [2018-07-24 00:35:23,394 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:35:23,394 INFO L276 IsEmpty]: Start isEmpty. Operand 18863 states and 23542 transitions. [2018-07-24 00:35:23,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-07-24 00:35:23,400 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:35:23,400 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:35:23,401 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:35:23,401 INFO L82 PathProgramCache]: Analyzing trace with hash -494094147, now seen corresponding path program 1 times [2018-07-24 00:35:23,401 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:35:23,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:35:23,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:23,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:23,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:23,877 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:35:23,877 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:35:23,877 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:35:23,878 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:35:23,878 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:35:23,878 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:23,878 INFO L87 Difference]: Start difference. First operand 18863 states and 23542 transitions. Second operand 4 states. [2018-07-24 00:35:31,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:35:31,770 INFO L93 Difference]: Finished difference Result 44492 states and 55982 transitions. [2018-07-24 00:35:31,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:35:31,770 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 285 [2018-07-24 00:35:31,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:35:31,821 INFO L225 Difference]: With dead ends: 44492 [2018-07-24 00:35:31,822 INFO L226 Difference]: Without dead ends: 25631 [2018-07-24 00:35:31,841 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:31,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25631 states. [2018-07-24 00:35:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25631 to 25631. [2018-07-24 00:35:32,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25631 states. [2018-07-24 00:35:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25631 states to 25631 states and 31283 transitions. [2018-07-24 00:35:32,181 INFO L78 Accepts]: Start accepts. Automaton has 25631 states and 31283 transitions. Word has length 285 [2018-07-24 00:35:32,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:35:32,182 INFO L471 AbstractCegarLoop]: Abstraction has 25631 states and 31283 transitions. [2018-07-24 00:35:32,182 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:35:32,182 INFO L276 IsEmpty]: Start isEmpty. Operand 25631 states and 31283 transitions. [2018-07-24 00:35:32,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-07-24 00:35:32,187 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:35:32,188 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:35:32,188 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:35:32,188 INFO L82 PathProgramCache]: Analyzing trace with hash -722939449, now seen corresponding path program 1 times [2018-07-24 00:35:32,188 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:35:32,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:35:32,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:32,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:32,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-07-24 00:35:32,654 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:35:32,654 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:35:32,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:32,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:35:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:35:32,848 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:35:32,849 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 00:35:32,849 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:35:32,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:35:32,850 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:32,850 INFO L87 Difference]: Start difference. First operand 25631 states and 31283 transitions. Second operand 4 states. [2018-07-24 00:35:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:35:41,351 INFO L93 Difference]: Finished difference Result 88169 states and 108730 transitions. [2018-07-24 00:35:41,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:35:41,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 289 [2018-07-24 00:35:41,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:35:41,450 INFO L225 Difference]: With dead ends: 88169 [2018-07-24 00:35:41,450 INFO L226 Difference]: Without dead ends: 62540 [2018-07-24 00:35:41,480 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:41,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62540 states. [2018-07-24 00:35:42,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62540 to 36911. [2018-07-24 00:35:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36911 states. [2018-07-24 00:35:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36911 states to 36911 states and 43466 transitions. [2018-07-24 00:35:42,054 INFO L78 Accepts]: Start accepts. Automaton has 36911 states and 43466 transitions. Word has length 289 [2018-07-24 00:35:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:35:42,055 INFO L471 AbstractCegarLoop]: Abstraction has 36911 states and 43466 transitions. [2018-07-24 00:35:42,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:35:42,055 INFO L276 IsEmpty]: Start isEmpty. Operand 36911 states and 43466 transitions. [2018-07-24 00:35:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-07-24 00:35:42,061 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:35:42,061 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:35:42,062 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:35:42,062 INFO L82 PathProgramCache]: Analyzing trace with hash 531043655, now seen corresponding path program 1 times [2018-07-24 00:35:42,062 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:35:42,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:35:42,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:42,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:42,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:42,355 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-07-24 00:35:42,356 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:35:42,356 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:35:42,356 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:35:42,357 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:35:42,357 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:42,357 INFO L87 Difference]: Start difference. First operand 36911 states and 43466 transitions. Second operand 4 states. [2018-07-24 00:35:50,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:35:50,599 INFO L93 Difference]: Finished difference Result 86604 states and 102880 transitions. [2018-07-24 00:35:50,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:35:50,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 289 [2018-07-24 00:35:50,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:35:50,672 INFO L225 Difference]: With dead ends: 86604 [2018-07-24 00:35:50,673 INFO L226 Difference]: Without dead ends: 49695 [2018-07-24 00:35:50,699 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:50,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49695 states. [2018-07-24 00:35:51,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49695 to 48191. [2018-07-24 00:35:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48191 states. [2018-07-24 00:35:51,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48191 states to 48191 states and 54451 transitions. [2018-07-24 00:35:51,253 INFO L78 Accepts]: Start accepts. Automaton has 48191 states and 54451 transitions. Word has length 289 [2018-07-24 00:35:51,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:35:51,254 INFO L471 AbstractCegarLoop]: Abstraction has 48191 states and 54451 transitions. [2018-07-24 00:35:51,254 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:35:51,254 INFO L276 IsEmpty]: Start isEmpty. Operand 48191 states and 54451 transitions. [2018-07-24 00:35:51,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-07-24 00:35:51,274 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:35:51,275 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:35:51,275 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:35:51,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1034869550, now seen corresponding path program 1 times [2018-07-24 00:35:51,276 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:35:51,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:35:51,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:51,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:51,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 00:35:51,661 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:35:51,662 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:35:51,662 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:35:51,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:35:51,663 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:51,663 INFO L87 Difference]: Start difference. First operand 48191 states and 54451 transitions. Second operand 4 states. [2018-07-24 00:35:59,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:35:59,665 INFO L93 Difference]: Finished difference Result 117436 states and 132075 transitions. [2018-07-24 00:35:59,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:35:59,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 413 [2018-07-24 00:35:59,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:35:59,739 INFO L225 Difference]: With dead ends: 117436 [2018-07-24 00:35:59,739 INFO L226 Difference]: Without dead ends: 62463 [2018-07-24 00:35:59,762 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:59,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2018-07-24 00:36:00,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 60959. [2018-07-24 00:36:00,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60959 states. [2018-07-24 00:36:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60959 states to 60959 states and 66783 transitions. [2018-07-24 00:36:00,405 INFO L78 Accepts]: Start accepts. Automaton has 60959 states and 66783 transitions. Word has length 413 [2018-07-24 00:36:00,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:36:00,406 INFO L471 AbstractCegarLoop]: Abstraction has 60959 states and 66783 transitions. [2018-07-24 00:36:00,406 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:36:00,406 INFO L276 IsEmpty]: Start isEmpty. Operand 60959 states and 66783 transitions. [2018-07-24 00:36:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2018-07-24 00:36:00,424 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:36:00,424 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:36:00,425 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:36:00,425 INFO L82 PathProgramCache]: Analyzing trace with hash -416192898, now seen corresponding path program 1 times [2018-07-24 00:36:00,425 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:36:00,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:36:00,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:00,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:36:00,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:36:01,210 WARN L169 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-07-24 00:36:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 124 proven. 263 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 00:36:01,713 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:36:01,713 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:36:01,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:36:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:36:01,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:36:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 128 proven. 259 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 00:36:02,427 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:36:02,428 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2018-07-24 00:36:02,429 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 00:36:02,429 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 00:36:02,429 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:36:02,429 INFO L87 Difference]: Start difference. First operand 60959 states and 66783 transitions. Second operand 8 states. [2018-07-24 00:36:19,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:36:19,016 INFO L93 Difference]: Finished difference Result 146731 states and 161759 transitions. [2018-07-24 00:36:19,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 00:36:19,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 440 [2018-07-24 00:36:19,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:36:19,145 INFO L225 Difference]: With dead ends: 146731 [2018-07-24 00:36:19,145 INFO L226 Difference]: Without dead ends: 86526 [2018-07-24 00:36:19,195 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 439 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2018-07-24 00:36:19,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86526 states. [2018-07-24 00:36:20,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86526 to 82014. [2018-07-24 00:36:20,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82014 states. [2018-07-24 00:36:20,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82014 states to 82014 states and 90526 transitions. [2018-07-24 00:36:20,385 INFO L78 Accepts]: Start accepts. Automaton has 82014 states and 90526 transitions. Word has length 440 [2018-07-24 00:36:20,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:36:20,385 INFO L471 AbstractCegarLoop]: Abstraction has 82014 states and 90526 transitions. [2018-07-24 00:36:20,385 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 00:36:20,385 INFO L276 IsEmpty]: Start isEmpty. Operand 82014 states and 90526 transitions. [2018-07-24 00:36:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2018-07-24 00:36:20,400 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:36:20,401 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 00:36:20,401 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:36:20,401 INFO L82 PathProgramCache]: Analyzing trace with hash 376814410, now seen corresponding path program 1 times [2018-07-24 00:36:20,402 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:36:20,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:36:20,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:20,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:36:20,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:36:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-07-24 00:36:20,760 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:36:20,760 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:36:20,761 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:36:20,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:36:20,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:36:20,761 INFO L87 Difference]: Start difference. First operand 82014 states and 90526 transitions. Second operand 3 states. [2018-07-24 00:36:27,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:36:27,256 INFO L93 Difference]: Finished difference Result 196362 states and 216714 transitions. [2018-07-24 00:36:27,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:36:27,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 509 [2018-07-24 00:36:27,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:36:27,372 INFO L225 Difference]: With dead ends: 196362 [2018-07-24 00:36:27,373 INFO L226 Difference]: Without dead ends: 115102 [2018-07-24 00:36:27,421 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:36:27,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115102 states. [2018-07-24 00:36:28,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115102 to 112094. [2018-07-24 00:36:28,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112094 states. [2018-07-24 00:36:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112094 states to 112094 states and 122253 transitions. [2018-07-24 00:36:28,888 INFO L78 Accepts]: Start accepts. Automaton has 112094 states and 122253 transitions. Word has length 509 [2018-07-24 00:36:28,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:36:28,889 INFO L471 AbstractCegarLoop]: Abstraction has 112094 states and 122253 transitions. [2018-07-24 00:36:28,889 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:36:28,889 INFO L276 IsEmpty]: Start isEmpty. Operand 112094 states and 122253 transitions. [2018-07-24 00:36:28,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2018-07-24 00:36:28,901 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:36:28,901 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2018-07-24 00:36:28,902 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:36:28,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1526771628, now seen corresponding path program 1 times [2018-07-24 00:36:28,902 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:36:28,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:36:28,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:28,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:36:28,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:36:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2018-07-24 00:36:29,277 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:36:29,277 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:36:29,277 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:36:29,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:36:29,278 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:36:29,281 INFO L87 Difference]: Start difference. First operand 112094 states and 122253 transitions. Second operand 3 states. [2018-07-24 00:36:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:36:34,455 INFO L93 Difference]: Finished difference Result 224185 states and 244643 transitions. [2018-07-24 00:36:34,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:36:34,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 532 [2018-07-24 00:36:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:36:34,576 INFO L225 Difference]: With dead ends: 224185 [2018-07-24 00:36:34,576 INFO L226 Difference]: Without dead ends: 112845 [2018-07-24 00:36:34,643 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:36:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112845 states. [2018-07-24 00:36:35,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112845 to 106077. [2018-07-24 00:36:35,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106077 states. [2018-07-24 00:36:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106077 states to 106077 states and 113252 transitions. [2018-07-24 00:36:35,570 INFO L78 Accepts]: Start accepts. Automaton has 106077 states and 113252 transitions. Word has length 532 [2018-07-24 00:36:35,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:36:35,572 INFO L471 AbstractCegarLoop]: Abstraction has 106077 states and 113252 transitions. [2018-07-24 00:36:35,572 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:36:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 106077 states and 113252 transitions. [2018-07-24 00:36:35,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2018-07-24 00:36:35,656 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:36:35,657 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:36:35,657 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:36:35,657 INFO L82 PathProgramCache]: Analyzing trace with hash 631280039, now seen corresponding path program 1 times [2018-07-24 00:36:35,657 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:36:35,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:36:35,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:35,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:36:35,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:36:37,473 WARN L169 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-24 00:36:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-07-24 00:36:38,039 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:36:38,040 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:36:38,041 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:36:38,041 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:36:38,041 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:36:38,041 INFO L87 Difference]: Start difference. First operand 106077 states and 113252 transitions. Second operand 4 states. [2018-07-24 00:36:44,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:36:44,073 INFO L93 Difference]: Finished difference Result 224936 states and 239813 transitions. [2018-07-24 00:36:44,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:36:44,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1036 [2018-07-24 00:36:44,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:36:44,178 INFO L225 Difference]: With dead ends: 224936 [2018-07-24 00:36:44,178 INFO L226 Difference]: Without dead ends: 119613 [2018-07-24 00:36:44,210 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:36:44,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119613 states. [2018-07-24 00:36:44,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119613 to 115101. [2018-07-24 00:36:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115101 states. [2018-07-24 00:36:45,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115101 states to 115101 states and 122177 transitions. [2018-07-24 00:36:45,065 INFO L78 Accepts]: Start accepts. Automaton has 115101 states and 122177 transitions. Word has length 1036 [2018-07-24 00:36:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:36:45,067 INFO L471 AbstractCegarLoop]: Abstraction has 115101 states and 122177 transitions. [2018-07-24 00:36:45,067 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:36:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 115101 states and 122177 transitions. [2018-07-24 00:36:45,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1121 [2018-07-24 00:36:45,151 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:36:45,152 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 00:36:45,152 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:36:45,153 INFO L82 PathProgramCache]: Analyzing trace with hash -24614869, now seen corresponding path program 1 times [2018-07-24 00:36:45,153 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:36:45,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:36:45,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:45,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:36:45,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:36:47,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 644 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2018-07-24 00:36:47,558 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:36:47,558 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:36:47,559 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:36:47,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:36:47,559 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:36:47,560 INFO L87 Difference]: Start difference. First operand 115101 states and 122177 transitions. Second operand 4 states. [2018-07-24 00:36:54,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:36:54,385 INFO L93 Difference]: Finished difference Result 230200 states and 244357 transitions. [2018-07-24 00:36:54,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:36:54,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1120 [2018-07-24 00:36:54,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:36:54,492 INFO L225 Difference]: With dead ends: 230200 [2018-07-24 00:36:54,492 INFO L226 Difference]: Without dead ends: 115100 [2018-07-24 00:36:55,400 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:36:55,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115100 states. [2018-07-24 00:36:56,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115100 to 109836. [2018-07-24 00:36:56,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109836 states. [2018-07-24 00:36:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109836 states to 109836 states and 114639 transitions. [2018-07-24 00:36:56,268 INFO L78 Accepts]: Start accepts. Automaton has 109836 states and 114639 transitions. Word has length 1120 [2018-07-24 00:36:56,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:36:56,268 INFO L471 AbstractCegarLoop]: Abstraction has 109836 states and 114639 transitions. [2018-07-24 00:36:56,268 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:36:56,269 INFO L276 IsEmpty]: Start isEmpty. Operand 109836 states and 114639 transitions. [2018-07-24 00:36:56,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2018-07-24 00:36:56,323 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:36:56,324 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:36:56,325 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:36:56,325 INFO L82 PathProgramCache]: Analyzing trace with hash 752005048, now seen corresponding path program 1 times [2018-07-24 00:36:56,325 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:36:56,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:36:56,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:56,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:36:56,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:36:58,387 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2018-07-24 00:36:58,387 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:36:58,387 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:36:58,388 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:36:58,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:36:58,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:36:58,389 INFO L87 Difference]: Start difference. First operand 109836 states and 114639 transitions. Second operand 3 states. [2018-07-24 00:37:03,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:37:03,881 INFO L93 Difference]: Finished difference Result 248246 states and 259204 transitions. [2018-07-24 00:37:03,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:37:03,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1130 [2018-07-24 00:37:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:37:04,763 INFO L225 Difference]: With dead ends: 248246 [2018-07-24 00:37:04,763 INFO L226 Difference]: Without dead ends: 138411 [2018-07-24 00:37:04,807 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:37:04,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138411 states. [2018-07-24 00:37:05,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138411 to 134651. [2018-07-24 00:37:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134651 states. [2018-07-24 00:37:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134651 states to 134651 states and 140299 transitions. [2018-07-24 00:37:05,973 INFO L78 Accepts]: Start accepts. Automaton has 134651 states and 140299 transitions. Word has length 1130 [2018-07-24 00:37:05,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:37:05,974 INFO L471 AbstractCegarLoop]: Abstraction has 134651 states and 140299 transitions. [2018-07-24 00:37:05,974 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:37:05,974 INFO L276 IsEmpty]: Start isEmpty. Operand 134651 states and 140299 transitions. [2018-07-24 00:37:06,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1247 [2018-07-24 00:37:06,082 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:06,083 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:37:06,083 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:06,083 INFO L82 PathProgramCache]: Analyzing trace with hash 598361191, now seen corresponding path program 1 times [2018-07-24 00:37:06,083 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:06,084 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:06,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:06,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:06,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:06,573 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-07-24 00:37:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 1092 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2018-07-24 00:37:07,576 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:37:07,576 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:37:07,577 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:37:07,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:37:07,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:07,578 INFO L87 Difference]: Start difference. First operand 134651 states and 140299 transitions. Second operand 4 states. [2018-07-24 00:37:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:37:14,849 INFO L93 Difference]: Finished difference Result 267795 states and 279056 transitions. [2018-07-24 00:37:14,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:37:14,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1246 [2018-07-24 00:37:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:37:14,989 INFO L225 Difference]: With dead ends: 267795 [2018-07-24 00:37:14,989 INFO L226 Difference]: Without dead ends: 133898 [2018-07-24 00:37:15,051 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:15,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133898 states. [2018-07-24 00:37:16,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133898 to 124122. [2018-07-24 00:37:16,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124122 states. [2018-07-24 00:37:16,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124122 states to 124122 states and 127411 transitions. [2018-07-24 00:37:16,810 INFO L78 Accepts]: Start accepts. Automaton has 124122 states and 127411 transitions. Word has length 1246 [2018-07-24 00:37:16,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:37:16,810 INFO L471 AbstractCegarLoop]: Abstraction has 124122 states and 127411 transitions. [2018-07-24 00:37:16,810 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:37:16,811 INFO L276 IsEmpty]: Start isEmpty. Operand 124122 states and 127411 transitions. [2018-07-24 00:37:16,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2018-07-24 00:37:16,901 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:16,902 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:37:16,902 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:16,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1568951165, now seen corresponding path program 1 times [2018-07-24 00:37:16,903 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:16,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:16,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:16,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:16,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1914 backedges. 1414 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2018-07-24 00:37:20,869 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:37:20,869 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:37:20,870 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:37:20,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:37:20,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:20,871 INFO L87 Difference]: Start difference. First operand 124122 states and 127411 transitions. Second operand 4 states. [2018-07-24 00:37:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:37:26,508 INFO L93 Difference]: Finished difference Result 259522 states and 266369 transitions. [2018-07-24 00:37:26,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:37:26,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1384 [2018-07-24 00:37:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:37:26,629 INFO L225 Difference]: With dead ends: 259522 [2018-07-24 00:37:26,629 INFO L226 Difference]: Without dead ends: 136154 [2018-07-24 00:37:26,658 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136154 states. [2018-07-24 00:37:27,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136154 to 127130. [2018-07-24 00:37:27,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127130 states. [2018-07-24 00:37:27,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127130 states to 127130 states and 130286 transitions. [2018-07-24 00:37:27,640 INFO L78 Accepts]: Start accepts. Automaton has 127130 states and 130286 transitions. Word has length 1384 [2018-07-24 00:37:27,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:37:27,641 INFO L471 AbstractCegarLoop]: Abstraction has 127130 states and 130286 transitions. [2018-07-24 00:37:27,641 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:37:27,641 INFO L276 IsEmpty]: Start isEmpty. Operand 127130 states and 130286 transitions. [2018-07-24 00:37:27,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2018-07-24 00:37:27,729 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:27,730 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:37:27,730 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:27,731 INFO L82 PathProgramCache]: Analyzing trace with hash -2146172628, now seen corresponding path program 1 times [2018-07-24 00:37:27,731 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:27,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:27,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:27,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:27,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 911 proven. 262 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-07-24 00:37:30,672 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:37:30,673 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:37:30,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:31,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:37:36,241 WARN L169 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 160 DAG size of output: 31 [2018-07-24 00:37:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 1056 proven. 117 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-07-24 00:37:42,188 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:37:42,188 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-07-24 00:37:42,190 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 00:37:42,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 00:37:42,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:37:42,190 INFO L87 Difference]: Start difference. First operand 127130 states and 130286 transitions. Second operand 8 states. Received shutdown request... [2018-07-24 00:38:01,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 00:38:01,420 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:38:01,427 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:38:01,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:38:01 BoogieIcfgContainer [2018-07-24 00:38:01,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:38:01,428 INFO L168 Benchmark]: Toolchain (without parser) took 233673.63 ms. Allocated memory was 1.6 GB in the beginning and 4.8 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-24 00:38:01,430 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 00:38:01,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2910.74 ms. Allocated memory is still 1.6 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. [2018-07-24 00:38:01,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 484.00 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 7.1 GB. [2018-07-24 00:38:01,432 INFO L168 Benchmark]: Boogie Preprocessor took 1176.70 ms. Allocated memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: 986.7 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. [2018-07-24 00:38:01,433 INFO L168 Benchmark]: RCFGBuilder took 9190.88 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 135.8 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -84.9 MB). Peak memory consumption was 734.0 MB. Max. memory is 7.1 GB. [2018-07-24 00:38:01,434 INFO L168 Benchmark]: TraceAbstraction took 219905.48 ms. Allocated memory was 2.7 GB in the beginning and 4.8 GB in the end (delta: 2.1 GB). Free memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: -578.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-07-24 00:38:01,438 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2910.74 ms. Allocated memory is still 1.6 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 484.00 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1176.70 ms. Allocated memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: 986.7 MB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9190.88 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 135.8 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -84.9 MB). Peak memory consumption was 734.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219905.48 ms. Allocated memory was 2.7 GB in the beginning and 4.8 GB in the end (delta: 2.1 GB). Free memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: -578.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 102). Cancelled while BasicCegarLoop was constructing difference of abstraction (127130states) and interpolant automaton (currently 9 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (36244 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 219.8s OverallTime, 16 OverallIterations, 7 TraceHistogramMax, 171.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10341 SDtfs, 41153 SDslu, 1567 SDs, 0 SdLazy, 82235 SolverSat, 18007 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 136.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2656 GetRequests, 2588 SyntacticMatches, 12 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134651occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.9s AutomataMinimizationTime, 15 MinimizatonAttempts, 82813 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 13111 NumberOfCodeBlocks, 13111 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 13090 ConstructedInterpolants, 444 QuantifiedInterpolants, 54684840 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3133 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 21 InterpolantComputations, 14 PerfectInterpolantSequences, 11823/12737 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label52_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-38-01-453.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label52_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-38-01-453.csv Completed graceful shutdown