java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:03:44,944 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:03:44,949 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:03:44,966 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:03:44,966 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:03:44,967 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:03:44,969 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:03:44,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:03:44,974 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:03:44,974 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:03:44,977 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:03:44,977 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:03:44,979 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:03:44,980 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:03:44,982 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:03:44,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:03:44,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:03:44,986 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:03:44,988 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:03:44,989 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:03:44,990 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:03:44,992 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:03:44,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 22:03:44,995 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 22:03:44,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 22:03:44,996 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 22:03:44,997 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 22:03:44,997 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 22:03:45,000 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 22:03:45,002 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 22:03:45,002 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 22:03:45,008 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 22:03:45,008 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 22:03:45,008 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 22:03:45,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 22:03:45,010 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 22:03:45,011 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 [2018-11-06 22:03:45,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:03:45,037 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:03:45,038 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:03:45,038 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:03:45,038 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:03:45,039 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:03:45,039 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:03:45,039 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:03:45,039 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:03:45,040 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:03:45,040 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:03:45,040 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:03:45,040 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:03:45,040 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:03:45,040 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:03:45,041 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:03:45,041 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:03:45,041 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:03:45,041 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:03:45,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:03:45,042 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:03:45,042 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:03:45,042 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:03:45,042 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:03:45,042 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:03:45,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:03:45,045 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:03:45,045 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:03:45,111 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:03:45,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:03:45,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:03:45,130 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:03:45,131 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:03:45,132 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c [2018-11-06 22:03:45,189 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda010c75/1bf82fc516464440bc1ab28ea9bdfb70/FLAG34d4f360e [2018-11-06 22:03:46,110 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:03:46,110 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c [2018-11-06 22:03:46,166 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda010c75/1bf82fc516464440bc1ab28ea9bdfb70/FLAG34d4f360e [2018-11-06 22:03:46,186 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda010c75/1bf82fc516464440bc1ab28ea9bdfb70 [2018-11-06 22:03:46,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:03:46,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:03:46,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:03:46,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:03:46,207 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:03:46,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:46" (1/1) ... [2018-11-06 22:03:46,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19823fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:46, skipping insertion in model container [2018-11-06 22:03:46,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:46" (1/1) ... [2018-11-06 22:03:46,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:03:46,494 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:03:48,577 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:03:48,582 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:03:49,698 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:03:49,755 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:03:49,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49 WrapperNode [2018-11-06 22:03:49,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:03:49,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:03:49,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:03:49,758 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:03:49,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:50,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:50,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:03:50,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:03:50,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:03:50,807 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:03:50,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:50,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:50,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:50,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:51,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:51,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:51,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (1/1) ... [2018-11-06 22:03:51,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:03:51,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:03:51,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:03:51,604 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:03:51,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (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 [2018-11-06 22:03:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 22:03:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:03:51,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:04:07,426 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:04:07,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:04:07 BoogieIcfgContainer [2018-11-06 22:04:07,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:04:07,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:04:07,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:04:07,431 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:04:07,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:03:46" (1/3) ... [2018-11-06 22:04:07,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62938801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:04:07, skipping insertion in model container [2018-11-06 22:04:07,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49" (2/3) ... [2018-11-06 22:04:07,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62938801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:04:07, skipping insertion in model container [2018-11-06 22:04:07,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:04:07" (3/3) ... [2018-11-06 22:04:07,435 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label49_true-unreach-call.c [2018-11-06 22:04:07,445 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:04:07,456 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:04:07,474 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:04:07,533 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:04:07,534 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:04:07,534 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:04:07,534 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:04:07,534 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:04:07,535 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:04:07,535 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:04:07,535 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:04:07,535 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:04:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-11-06 22:04:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-06 22:04:07,607 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:04:07,609 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:04:07,611 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:04:07,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:04:07,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1586436998, now seen corresponding path program 1 times [2018-11-06 22:04:07,621 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:04:07,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:04:07,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:07,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:04:07,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:04:08,124 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-06 22:04:08,324 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-11-06 22:04:08,606 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-11-06 22:04:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:04:08,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:04:08,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 22:04:08,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 22:04:08,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 22:04:08,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 22:04:08,725 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 6 states. [2018-11-06 22:04:08,959 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-06 22:04:47,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:04:47,472 INFO L93 Difference]: Finished difference Result 9077 states and 17599 transitions. [2018-11-06 22:04:47,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 22:04:47,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-11-06 22:04:47,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:04:47,542 INFO L225 Difference]: With dead ends: 9077 [2018-11-06 22:04:47,542 INFO L226 Difference]: Without dead ends: 7315 [2018-11-06 22:04:47,553 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-11-06 22:04:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2018-11-06 22:04:47,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 5898. [2018-11-06 22:04:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5898 states. [2018-11-06 22:04:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8690 transitions. [2018-11-06 22:04:47,796 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8690 transitions. Word has length 43 [2018-11-06 22:04:47,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:04:47,796 INFO L480 AbstractCegarLoop]: Abstraction has 5898 states and 8690 transitions. [2018-11-06 22:04:47,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 22:04:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8690 transitions. [2018-11-06 22:04:47,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-11-06 22:04:47,806 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:04:47,807 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:04:47,807 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:04:47,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:04:47,808 INFO L82 PathProgramCache]: Analyzing trace with hash -752812192, now seen corresponding path program 1 times [2018-11-06 22:04:47,808 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:04:47,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:04:47,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:47,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:04:47,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:04:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:04:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-06 22:04:48,576 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:04:48,576 INFO L225 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 [2018-11-06 22:04:48,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:04:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:04:48,765 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:04:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:04:49,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:04:49,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-11-06 22:04:49,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:04:49,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:04:49,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:04:49,024 INFO L87 Difference]: Start difference. First operand 5898 states and 8690 transitions. Second operand 5 states. [2018-11-06 22:05:13,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:05:13,857 INFO L93 Difference]: Finished difference Result 22882 states and 36397 transitions. [2018-11-06 22:05:13,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 22:05:13,858 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2018-11-06 22:05:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:05:13,934 INFO L225 Difference]: With dead ends: 22882 [2018-11-06 22:05:13,935 INFO L226 Difference]: Without dead ends: 16986 [2018-11-06 22:05:13,945 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:05:13,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16986 states. [2018-11-06 22:05:14,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16986 to 11422. [2018-11-06 22:05:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11422 states. [2018-11-06 22:05:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11422 states to 11422 states and 16438 transitions. [2018-11-06 22:05:14,227 INFO L78 Accepts]: Start accepts. Automaton has 11422 states and 16438 transitions. Word has length 279 [2018-11-06 22:05:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:05:14,228 INFO L480 AbstractCegarLoop]: Abstraction has 11422 states and 16438 transitions. [2018-11-06 22:05:14,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:05:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 11422 states and 16438 transitions. [2018-11-06 22:05:14,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-11-06 22:05:14,248 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:05:14,248 INFO L375 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:05:14,248 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:05:14,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:05:14,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1244154395, now seen corresponding path program 1 times [2018-11-06 22:05:14,249 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:05:14,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:05:14,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:05:14,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:05:14,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:05:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:05:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:05:14,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:05:14,829 INFO L225 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 [2018-11-06 22:05:14,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:05:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:05:14,934 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:05:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:05:15,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:05:15,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-11-06 22:05:15,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:05:15,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:05:15,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:05:15,133 INFO L87 Difference]: Start difference. First operand 11422 states and 16438 transitions. Second operand 5 states. [2018-11-06 22:05:46,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:05:46,181 INFO L93 Difference]: Finished difference Result 45064 states and 64999 transitions. [2018-11-06 22:05:46,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 22:05:46,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 347 [2018-11-06 22:05:46,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:05:46,267 INFO L225 Difference]: With dead ends: 45064 [2018-11-06 22:05:46,268 INFO L226 Difference]: Without dead ends: 28178 [2018-11-06 22:05:46,284 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 22:05:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28178 states. [2018-11-06 22:05:46,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28178 to 28096. [2018-11-06 22:05:46,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28096 states. [2018-11-06 22:05:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28096 states to 28096 states and 34479 transitions. [2018-11-06 22:05:46,682 INFO L78 Accepts]: Start accepts. Automaton has 28096 states and 34479 transitions. Word has length 347 [2018-11-06 22:05:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:05:46,683 INFO L480 AbstractCegarLoop]: Abstraction has 28096 states and 34479 transitions. [2018-11-06 22:05:46,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:05:46,683 INFO L276 IsEmpty]: Start isEmpty. Operand 28096 states and 34479 transitions. [2018-11-06 22:05:46,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-11-06 22:05:46,689 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:05:46,689 INFO L375 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:05:46,690 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:05:46,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:05:46,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1128196187, now seen corresponding path program 1 times [2018-11-06 22:05:46,690 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:05:46,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:05:46,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:05:46,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:05:46,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:05:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:05:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 81 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-06 22:05:47,288 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:05:47,288 INFO L225 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 [2018-11-06 22:05:47,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:05:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:05:47,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:05:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:05:47,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:05:47,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-11-06 22:05:47,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:05:47,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:05:47,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:05:47,578 INFO L87 Difference]: Start difference. First operand 28096 states and 34479 transitions. Second operand 4 states. [2018-11-06 22:06:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:06:06,136 INFO L93 Difference]: Finished difference Result 107042 states and 132020 transitions. [2018-11-06 22:06:06,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:06:06,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 349 [2018-11-06 22:06:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:06:06,264 INFO L225 Difference]: With dead ends: 107042 [2018-11-06 22:06:06,265 INFO L226 Difference]: Without dead ends: 78948 [2018-11-06 22:06:06,297 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:06:06,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78948 states. [2018-11-06 22:06:07,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78948 to 51317. [2018-11-06 22:06:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51317 states. [2018-11-06 22:06:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51317 states to 51317 states and 61847 transitions. [2018-11-06 22:06:07,102 INFO L78 Accepts]: Start accepts. Automaton has 51317 states and 61847 transitions. Word has length 349 [2018-11-06 22:06:07,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:06:07,102 INFO L480 AbstractCegarLoop]: Abstraction has 51317 states and 61847 transitions. [2018-11-06 22:06:07,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:06:07,103 INFO L276 IsEmpty]: Start isEmpty. Operand 51317 states and 61847 transitions. [2018-11-06 22:06:07,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2018-11-06 22:06:07,130 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:06:07,130 INFO L375 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:06:07,131 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:06:07,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:06:07,131 INFO L82 PathProgramCache]: Analyzing trace with hash 629702866, now seen corresponding path program 1 times [2018-11-06 22:06:07,132 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:06:07,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:06:07,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:06:07,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:06:07,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:06:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:06:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 565 proven. 4 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-11-06 22:06:09,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:06:09,015 INFO L225 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 [2018-11-06 22:06:09,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:06:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:06:09,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:06:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 569 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-11-06 22:06:09,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:06:09,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 22:06:09,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:06:09,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:06:09,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:06:09,630 INFO L87 Difference]: Start difference. First operand 51317 states and 61847 transitions. Second operand 5 states. [2018-11-06 22:06:28,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:06:28,937 INFO L93 Difference]: Finished difference Result 113563 states and 134986 transitions. [2018-11-06 22:06:28,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 22:06:28,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 730 [2018-11-06 22:06:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:06:29,010 INFO L225 Difference]: With dead ends: 113563 [2018-11-06 22:06:29,010 INFO L226 Difference]: Without dead ends: 58147 [2018-11-06 22:06:29,055 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 730 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 22:06:29,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58147 states. [2018-11-06 22:06:29,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58147 to 56779. [2018-11-06 22:06:29,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56779 states. [2018-11-06 22:06:29,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56779 states to 56779 states and 63423 transitions. [2018-11-06 22:06:29,669 INFO L78 Accepts]: Start accepts. Automaton has 56779 states and 63423 transitions. Word has length 730 [2018-11-06 22:06:29,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:06:29,670 INFO L480 AbstractCegarLoop]: Abstraction has 56779 states and 63423 transitions. [2018-11-06 22:06:29,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:06:29,670 INFO L276 IsEmpty]: Start isEmpty. Operand 56779 states and 63423 transitions. [2018-11-06 22:06:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2018-11-06 22:06:29,698 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:06:29,699 INFO L375 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:06:29,699 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:06:29,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:06:29,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1844742664, now seen corresponding path program 1 times [2018-11-06 22:06:29,700 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:06:29,700 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:06:29,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:06:29,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:06:29,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:06:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:06:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 220 proven. 72 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2018-11-06 22:06:31,369 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:06:31,369 INFO L225 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 [2018-11-06 22:06:31,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:06:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:06:31,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:06:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2018-11-06 22:06:32,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:06:32,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 22:06:32,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:06:32,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:06:32,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:06:32,031 INFO L87 Difference]: Start difference. First operand 56779 states and 63423 transitions. Second operand 5 states. [2018-11-06 22:06:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:06:45,417 INFO L93 Difference]: Finished difference Result 187325 states and 211262 transitions. [2018-11-06 22:06:45,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:06:45,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 753 [2018-11-06 22:06:45,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:06:45,554 INFO L225 Difference]: With dead ends: 187325 [2018-11-06 22:06:45,554 INFO L226 Difference]: Without dead ends: 130548 [2018-11-06 22:06:45,596 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 752 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:06:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130548 states. [2018-11-06 22:06:46,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130548 to 130541. [2018-11-06 22:06:46,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130541 states. [2018-11-06 22:06:46,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130541 states to 130541 states and 142309 transitions. [2018-11-06 22:06:46,654 INFO L78 Accepts]: Start accepts. Automaton has 130541 states and 142309 transitions. Word has length 753 [2018-11-06 22:06:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:06:46,654 INFO L480 AbstractCegarLoop]: Abstraction has 130541 states and 142309 transitions. [2018-11-06 22:06:46,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:06:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 130541 states and 142309 transitions. [2018-11-06 22:06:46,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 899 [2018-11-06 22:06:46,667 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:06:46,668 INFO L375 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:06:46,669 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:06:46,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:06:46,669 INFO L82 PathProgramCache]: Analyzing trace with hash -454332109, now seen corresponding path program 1 times [2018-11-06 22:06:46,669 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:06:46,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:06:46,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:06:46,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:06:46,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:06:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:06:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-11-06 22:06:48,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:06:48,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:06:48,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:06:48,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:06:48,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:06:48,125 INFO L87 Difference]: Start difference. First operand 130541 states and 142309 transitions. Second operand 4 states. [2018-11-06 22:07:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:07:00,573 INFO L93 Difference]: Finished difference Result 307531 states and 336334 transitions. [2018-11-06 22:07:00,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:07:00,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 898 [2018-11-06 22:07:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:07:00,770 INFO L225 Difference]: With dead ends: 307531 [2018-11-06 22:07:00,771 INFO L226 Difference]: Without dead ends: 176992 [2018-11-06 22:07:00,823 INFO L604 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 [2018-11-06 22:07:00,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176992 states. [2018-11-06 22:07:02,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176992 to 166053. [2018-11-06 22:07:02,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166053 states. [2018-11-06 22:07:02,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166053 states to 166053 states and 177807 transitions. [2018-11-06 22:07:02,246 INFO L78 Accepts]: Start accepts. Automaton has 166053 states and 177807 transitions. Word has length 898 [2018-11-06 22:07:02,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:07:02,247 INFO L480 AbstractCegarLoop]: Abstraction has 166053 states and 177807 transitions. [2018-11-06 22:07:02,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:07:02,247 INFO L276 IsEmpty]: Start isEmpty. Operand 166053 states and 177807 transitions. [2018-11-06 22:07:02,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 932 [2018-11-06 22:07:02,259 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:07:02,260 INFO L375 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:07:02,260 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:07:02,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:07:02,261 INFO L82 PathProgramCache]: Analyzing trace with hash 819861566, now seen corresponding path program 1 times [2018-11-06 22:07:02,261 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:07:02,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:07:02,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:07:02,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:07:02,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:07:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:07:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-11-06 22:07:04,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:07:04,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:07:04,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:07:04,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:07:04,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:07:04,264 INFO L87 Difference]: Start difference. First operand 166053 states and 177807 transitions. Second operand 4 states. [2018-11-06 22:07:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:07:18,509 INFO L93 Difference]: Finished difference Result 430606 states and 464893 transitions. [2018-11-06 22:07:18,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:07:18,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 931 [2018-11-06 22:07:18,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:07:18,885 INFO L225 Difference]: With dead ends: 430606 [2018-11-06 22:07:18,886 INFO L226 Difference]: Without dead ends: 264555 [2018-11-06 22:07:18,980 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:07:19,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264555 states. [2018-11-06 22:07:21,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264555 to 264467. [2018-11-06 22:07:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264467 states. [2018-11-06 22:07:21,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264467 states to 264467 states and 282838 transitions. [2018-11-06 22:07:21,558 INFO L78 Accepts]: Start accepts. Automaton has 264467 states and 282838 transitions. Word has length 931 [2018-11-06 22:07:21,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:07:21,559 INFO L480 AbstractCegarLoop]: Abstraction has 264467 states and 282838 transitions. [2018-11-06 22:07:21,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:07:21,559 INFO L276 IsEmpty]: Start isEmpty. Operand 264467 states and 282838 transitions. [2018-11-06 22:07:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 982 [2018-11-06 22:07:21,573 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:07:21,574 INFO L375 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:07:21,575 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:07:21,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:07:21,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1121038853, now seen corresponding path program 1 times [2018-11-06 22:07:21,575 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:07:21,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:07:21,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:07:21,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:07:21,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:07:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:07:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-11-06 22:07:23,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:07:23,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 22:07:23,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 22:07:23,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 22:07:23,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:07:23,561 INFO L87 Difference]: Start difference. First operand 264467 states and 282838 transitions. Second operand 3 states. [2018-11-06 22:07:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:07:33,235 INFO L93 Difference]: Finished difference Result 548096 states and 587701 transitions. [2018-11-06 22:07:33,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 22:07:33,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 981 [2018-11-06 22:07:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:07:33,581 INFO L225 Difference]: With dead ends: 548096 [2018-11-06 22:07:33,581 INFO L226 Difference]: Without dead ends: 283631 [2018-11-06 22:07:33,715 INFO L604 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 [2018-11-06 22:07:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283631 states. [2018-11-06 22:07:37,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283631 to 283611. [2018-11-06 22:07:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283611 states. [2018-11-06 22:07:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283611 states to 283611 states and 303114 transitions. [2018-11-06 22:07:37,392 INFO L78 Accepts]: Start accepts. Automaton has 283611 states and 303114 transitions. Word has length 981 [2018-11-06 22:07:37,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:07:37,393 INFO L480 AbstractCegarLoop]: Abstraction has 283611 states and 303114 transitions. [2018-11-06 22:07:37,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 22:07:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 283611 states and 303114 transitions. [2018-11-06 22:07:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2018-11-06 22:07:37,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:07:37,408 INFO L375 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:07:37,409 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:07:37,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:07:37,409 INFO L82 PathProgramCache]: Analyzing trace with hash 169695182, now seen corresponding path program 1 times [2018-11-06 22:07:37,409 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:07:37,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:07:37,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:07:37,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:07:37,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:07:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-11-06 22:07:37,915 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:215) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:919) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-06 22:07:37,919 INFO L168 Benchmark]: Toolchain (without parser) took 231719.56 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 41.9 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-06 22:07:37,922 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:07:37,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3554.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-11-06 22:07:37,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 1049.10 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 865.6 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:07:37,924 INFO L168 Benchmark]: Boogie Preprocessor took 796.77 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 101.4 MB). Peak memory consumption was 101.4 MB. Max. memory is 7.1 GB. [2018-11-06 22:07:37,925 INFO L168 Benchmark]: RCFGBuilder took 15823.24 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 305.1 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -381.0 MB). Peak memory consumption was 818.8 MB. Max. memory is 7.1 GB. [2018-11-06 22:07:37,928 INFO L168 Benchmark]: TraceAbstraction took 210490.70 ms. Allocated memory was 2.7 GB in the beginning and 3.6 GB in the end (delta: 917.5 MB). Free memory was 2.4 GB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-06 22:07:37,936 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3554.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1049.10 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 865.6 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 796.77 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 101.4 MB). Peak memory consumption was 101.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15823.24 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 305.1 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -381.0 MB). Peak memory consumption was 818.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210490.70 ms. Allocated memory was 2.7 GB in the beginning and 3.6 GB in the end (delta: 917.5 MB). Free memory was 2.4 GB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:215) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown