java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/memsafety/20020406-1_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 21:57:10,159 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 21:57:10,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 21:57:10,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 21:57:10,175 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 21:57:10,176 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 21:57:10,177 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 21:57:10,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 21:57:10,182 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 21:57:10,182 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 21:57:10,183 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 21:57:10,184 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 21:57:10,185 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 21:57:10,186 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 21:57:10,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 21:57:10,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 21:57:10,192 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 21:57:10,194 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 21:57:10,195 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 21:57:10,196 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 21:57:10,199 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-20 21:57:10,203 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 21:57:10,204 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 21:57:10,204 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-20 21:57:10,213 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 21:57:10,213 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 21:57:10,214 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 21:57:10,214 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 21:57:10,214 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 21:57:10,214 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 21:57:10,214 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 21:57:10,215 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 21:57:10,215 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 21:57:10,215 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 21:57:10,215 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 21:57:10,215 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 21:57:10,215 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 21:57:10,216 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 21:57:10,216 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 21:57:10,216 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 21:57:10,216 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 21:57:10,216 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 21:57:10,216 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 21:57:10,216 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 21:57:10,217 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 21:57:10,217 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 21:57:10,217 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 21:57:10,217 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 21:57:10,217 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 21:57:10,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 21:57:10,218 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 21:57:10,218 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 21:57:10,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 21:57:10,218 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 21:57:10,218 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 21:57:10,218 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-20 21:57:10,218 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 21:57:10,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 21:57:10,219 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 21:57:10,219 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 21:57:10,220 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 21:57:10,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 21:57:10,262 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 21:57:10,266 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 21:57:10,267 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 21:57:10,267 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 21:57:10,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/20020406-1_false-valid-memtrack.i [2018-01-20 21:57:10,479 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 21:57:10,483 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 21:57:10,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 21:57:10,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 21:57:10,489 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 21:57:10,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb5cd73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10, skipping insertion in model container [2018-01-20 21:57:10,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,506 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 21:57:10,555 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 21:57:10,688 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 21:57:10,717 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 21:57:10,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10 WrapperNode [2018-01-20 21:57:10,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 21:57:10,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 21:57:10,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 21:57:10,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 21:57:10,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (1/1) ... [2018-01-20 21:57:10,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 21:57:10,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 21:57:10,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 21:57:10,772 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 21:57:10,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (1/1) ... No working directory specified, using /storage/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 [2018-01-20 21:57:10,825 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 21:57:10,825 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 21:57:10,825 INFO L136 BoogieDeclarations]: Found implementation of procedure FFmul [2018-01-20 21:57:10,825 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFdeg [2018-01-20 21:57:10,825 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFnew [2018-01-20 21:57:10,826 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFfree [2018-01-20 21:57:10,826 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFswap [2018-01-20 21:57:10,826 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFcopy [2018-01-20 21:57:10,826 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFshift_add [2018-01-20 21:57:10,826 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFexgcd [2018-01-20 21:57:10,826 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 21:57:10,826 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-20 21:57:10,826 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-20 21:57:10,826 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-20 21:57:10,826 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-20 21:57:10,827 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure FFmul [2018-01-20 21:57:10,827 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFdeg [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFnew [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFfree [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFswap [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFcopy [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFshift_add [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFexgcd [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 21:57:10,828 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 21:57:11,330 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 21:57:11,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:57:11 BoogieIcfgContainer [2018-01-20 21:57:11,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 21:57:11,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 21:57:11,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 21:57:11,357 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 21:57:11,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:57:10" (1/3) ... [2018-01-20 21:57:11,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d9295c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:57:11, skipping insertion in model container [2018-01-20 21:57:11,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:57:10" (2/3) ... [2018-01-20 21:57:11,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d9295c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:57:11, skipping insertion in model container [2018-01-20 21:57:11,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:57:11" (3/3) ... [2018-01-20 21:57:11,362 INFO L105 eAbstractionObserver]: Analyzing ICFG 20020406-1_false-valid-memtrack.i [2018-01-20 21:57:11,371 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 21:57:11,378 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-01-20 21:57:11,430 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:11,430 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:11,430 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:11,430 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:11,431 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:11,431 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:11,431 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:11,431 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFnewErr0EnsuresViolation======== [2018-01-20 21:57:11,432 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:11,457 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:11,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-20 21:57:11,464 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:11,466 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:57:11,466 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:11,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1285108215, now seen corresponding path program 1 times [2018-01-20 21:57:11,474 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:11,474 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:11,517 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:11,517 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:11,518 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:11,588 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:11,775 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:11,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 21:57:11,777 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 21:57:11,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 21:57:11,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 21:57:11,793 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 4 states. [2018-01-20 21:57:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:11,881 INFO L93 Difference]: Finished difference Result 329 states and 416 transitions. [2018-01-20 21:57:11,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 21:57:11,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-01-20 21:57:11,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:11,891 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:11,891 INFO L226 Difference]: Without dead ends: 103 [2018-01-20 21:57:11,896 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:11,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-01-20 21:57:11,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2018-01-20 21:57:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-01-20 21:57:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2018-01-20 21:57:11,944 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 19 [2018-01-20 21:57:11,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:11,944 INFO L432 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2018-01-20 21:57:11,944 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 21:57:11,945 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2018-01-20 21:57:11,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-20 21:57:11,947 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:11,947 INFO L322 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] [2018-01-20 21:57:11,947 INFO L371 AbstractCegarLoop]: === Iteration 2 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:11,947 INFO L82 PathProgramCache]: Analyzing trace with hash 824169485, now seen corresponding path program 1 times [2018-01-20 21:57:11,947 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:11,947 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:11,949 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:11,949 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:11,949 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:11,978 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:12,064 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:12,064 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-20 21:57:12,066 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-20 21:57:12,066 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-20 21:57:12,066 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-20 21:57:12,067 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 6 states. [2018-01-20 21:57:12,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:12,196 INFO L93 Difference]: Finished difference Result 189 states and 223 transitions. [2018-01-20 21:57:12,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-20 21:57:12,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-01-20 21:57:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:12,199 INFO L225 Difference]: With dead ends: 189 [2018-01-20 21:57:12,199 INFO L226 Difference]: Without dead ends: 106 [2018-01-20 21:57:12,200 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-20 21:57:12,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-01-20 21:57:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2018-01-20 21:57:12,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-01-20 21:57:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2018-01-20 21:57:12,209 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 28 [2018-01-20 21:57:12,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:12,210 INFO L432 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2018-01-20 21:57:12,210 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-20 21:57:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2018-01-20 21:57:12,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-20 21:57:12,210 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:12,211 INFO L322 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] [2018-01-20 21:57:12,211 INFO L371 AbstractCegarLoop]: === Iteration 3 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:12,211 INFO L82 PathProgramCache]: Analyzing trace with hash 2128486935, now seen corresponding path program 1 times [2018-01-20 21:57:12,211 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:12,211 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:12,212 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:12,212 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:12,212 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:12,242 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:12,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:12,352 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:12,352 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-01-20 21:57:12,368 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:12,424 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:12,530 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:12,531 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2018-01-20 21:57:12,531 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-20 21:57:12,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-20 21:57:12,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-01-20 21:57:12,532 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 10 states. [2018-01-20 21:57:12,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:12,745 INFO L93 Difference]: Finished difference Result 211 states and 251 transitions. [2018-01-20 21:57:12,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-20 21:57:12,745 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2018-01-20 21:57:12,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:12,747 INFO L225 Difference]: With dead ends: 211 [2018-01-20 21:57:12,747 INFO L226 Difference]: Without dead ends: 125 [2018-01-20 21:57:12,748 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-01-20 21:57:12,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-01-20 21:57:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2018-01-20 21:57:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-01-20 21:57:12,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2018-01-20 21:57:12,763 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 29 [2018-01-20 21:57:12,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:12,763 INFO L432 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2018-01-20 21:57:12,764 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-20 21:57:12,764 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2018-01-20 21:57:12,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-20 21:57:12,765 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:12,765 INFO L322 BasicCegarLoop]: trace histogram [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] [2018-01-20 21:57:12,765 INFO L371 AbstractCegarLoop]: === Iteration 4 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:12,765 INFO L82 PathProgramCache]: Analyzing trace with hash -387345075, now seen corresponding path program 2 times [2018-01-20 21:57:12,765 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:12,765 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:12,766 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:12,767 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:12,767 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:12,795 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:12,909 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:12,910 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-01-20 21:57:12,918 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-20 21:57:12,944 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:12,956 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:12,958 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-20 21:57:12,961 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:13,039 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:13,039 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2018-01-20 21:57:13,039 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-20 21:57:13,039 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-20 21:57:13,040 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-01-20 21:57:13,040 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 11 states. [2018-01-20 21:57:13,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:13,314 INFO L93 Difference]: Finished difference Result 230 states and 271 transitions. [2018-01-20 21:57:13,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-20 21:57:13,315 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-01-20 21:57:13,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:13,317 INFO L225 Difference]: With dead ends: 230 [2018-01-20 21:57:13,317 INFO L226 Difference]: Without dead ends: 128 [2018-01-20 21:57:13,318 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-01-20 21:57:13,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-01-20 21:57:13,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2018-01-20 21:57:13,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-01-20 21:57:13,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2018-01-20 21:57:13,332 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 30 [2018-01-20 21:57:13,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:13,332 INFO L432 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2018-01-20 21:57:13,332 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-20 21:57:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2018-01-20 21:57:13,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-20 21:57:13,333 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:13,334 INFO L322 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:57:13,334 INFO L371 AbstractCegarLoop]: === Iteration 5 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:13,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1068726057, now seen corresponding path program 3 times [2018-01-20 21:57:13,334 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:13,334 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:13,335 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:13,335 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-20 21:57:13,335 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:13,357 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:13,431 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:13,432 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:13,432 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-01-20 21:57:13,436 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-20 21:57:13,458 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-20 21:57:13,472 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-20 21:57:13,497 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-20 21:57:13,498 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-20 21:57:13,501 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:13,573 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:13,573 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2018-01-20 21:57:13,573 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-20 21:57:13,574 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-20 21:57:13,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-01-20 21:57:13,574 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 12 states. [2018-01-20 21:57:13,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:13,738 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2018-01-20 21:57:13,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-20 21:57:13,738 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2018-01-20 21:57:13,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:13,740 INFO L225 Difference]: With dead ends: 234 [2018-01-20 21:57:13,740 INFO L226 Difference]: Without dead ends: 131 [2018-01-20 21:57:13,740 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-01-20 21:57:13,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-01-20 21:57:13,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2018-01-20 21:57:13,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-01-20 21:57:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2018-01-20 21:57:13,750 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 31 [2018-01-20 21:57:13,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:13,751 INFO L432 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2018-01-20 21:57:13,751 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-20 21:57:13,751 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2018-01-20 21:57:13,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-20 21:57:13,751 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:13,751 INFO L322 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:57:13,752 INFO L371 AbstractCegarLoop]: === Iteration 6 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:13,752 INFO L82 PathProgramCache]: Analyzing trace with hash -716700019, now seen corresponding path program 4 times [2018-01-20 21:57:13,752 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:13,752 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:13,753 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:13,753 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-20 21:57:13,753 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:13,775 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:13,878 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:13,878 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-01-20 21:57:13,890 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-20 21:57:13,929 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-20 21:57:13,932 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:14,007 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:14,008 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2018-01-20 21:57:14,008 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-20 21:57:14,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-20 21:57:14,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-01-20 21:57:14,009 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 13 states. [2018-01-20 21:57:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:14,177 INFO L93 Difference]: Finished difference Result 238 states and 283 transitions. [2018-01-20 21:57:14,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-20 21:57:14,177 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2018-01-20 21:57:14,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:14,179 INFO L225 Difference]: With dead ends: 238 [2018-01-20 21:57:14,179 INFO L226 Difference]: Without dead ends: 134 [2018-01-20 21:57:14,179 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2018-01-20 21:57:14,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-01-20 21:57:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 124. [2018-01-20 21:57:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-01-20 21:57:14,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2018-01-20 21:57:14,188 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 32 [2018-01-20 21:57:14,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:14,189 INFO L432 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2018-01-20 21:57:14,189 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-20 21:57:14,189 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2018-01-20 21:57:14,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-20 21:57:14,190 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:14,190 INFO L322 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:57:14,190 INFO L371 AbstractCegarLoop]: === Iteration 7 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:14,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1606172567, now seen corresponding path program 5 times [2018-01-20 21:57:14,191 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:14,191 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:14,192 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:14,192 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-20 21:57:14,192 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:14,216 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:14,386 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:14,386 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-01-20 21:57:14,394 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-20 21:57:14,405 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:14,408 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:14,414 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:14,440 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:14,443 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-20 21:57:14,447 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:14,511 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:14,511 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2018-01-20 21:57:14,512 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-20 21:57:14,512 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-20 21:57:14,512 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2018-01-20 21:57:14,513 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand 14 states. [2018-01-20 21:57:14,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:14,676 INFO L93 Difference]: Finished difference Result 242 states and 289 transitions. [2018-01-20 21:57:14,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-20 21:57:14,676 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-01-20 21:57:14,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:14,678 INFO L225 Difference]: With dead ends: 242 [2018-01-20 21:57:14,678 INFO L226 Difference]: Without dead ends: 137 [2018-01-20 21:57:14,679 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2018-01-20 21:57:14,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-01-20 21:57:14,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2018-01-20 21:57:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-01-20 21:57:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 149 transitions. [2018-01-20 21:57:14,690 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 149 transitions. Word has length 33 [2018-01-20 21:57:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:14,690 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 149 transitions. [2018-01-20 21:57:14,690 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-20 21:57:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 149 transitions. [2018-01-20 21:57:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-20 21:57:14,691 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:14,692 INFO L322 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:57:14,692 INFO L371 AbstractCegarLoop]: === Iteration 8 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:14,692 INFO L82 PathProgramCache]: Analyzing trace with hash 600778701, now seen corresponding path program 6 times [2018-01-20 21:57:14,692 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:14,692 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:14,693 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:14,693 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-20 21:57:14,693 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:14,713 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:14,827 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:14,827 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:14,827 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:14,838 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-20 21:57:14,855 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-20 21:57:14,870 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-20 21:57:14,886 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-20 21:57:14,998 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-20 21:57:14,999 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-20 21:57:15,002 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:15,065 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:15,065 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 15 [2018-01-20 21:57:15,066 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-20 21:57:15,066 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-20 21:57:15,066 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2018-01-20 21:57:15,066 INFO L87 Difference]: Start difference. First operand 125 states and 149 transitions. Second operand 15 states. [2018-01-20 21:57:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:15,283 INFO L93 Difference]: Finished difference Result 246 states and 295 transitions. [2018-01-20 21:57:15,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-01-20 21:57:15,283 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2018-01-20 21:57:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:15,284 INFO L225 Difference]: With dead ends: 246 [2018-01-20 21:57:15,284 INFO L226 Difference]: Without dead ends: 140 [2018-01-20 21:57:15,285 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2018-01-20 21:57:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-01-20 21:57:15,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 126. [2018-01-20 21:57:15,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-01-20 21:57:15,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 151 transitions. [2018-01-20 21:57:15,293 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 151 transitions. Word has length 34 [2018-01-20 21:57:15,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:15,293 INFO L432 AbstractCegarLoop]: Abstraction has 126 states and 151 transitions. [2018-01-20 21:57:15,293 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-20 21:57:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 151 transitions. [2018-01-20 21:57:15,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-20 21:57:15,294 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:15,294 INFO L322 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:57:15,294 INFO L371 AbstractCegarLoop]: === Iteration 9 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:15,294 INFO L82 PathProgramCache]: Analyzing trace with hash -501660073, now seen corresponding path program 7 times [2018-01-20 21:57:15,294 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:15,295 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:15,295 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:15,295 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-20 21:57:15,296 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:15,313 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:15,401 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:15,401 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:15,407 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:15,431 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 21:57:15,488 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:15,488 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2018-01-20 21:57:15,489 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-20 21:57:15,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-20 21:57:15,489 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-01-20 21:57:15,489 INFO L87 Difference]: Start difference. First operand 126 states and 151 transitions. Second operand 16 states. [2018-01-20 21:57:15,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:15,650 INFO L93 Difference]: Finished difference Result 250 states and 301 transitions. [2018-01-20 21:57:15,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-01-20 21:57:15,650 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 35 [2018-01-20 21:57:15,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:15,652 INFO L225 Difference]: With dead ends: 250 [2018-01-20 21:57:15,652 INFO L226 Difference]: Without dead ends: 143 [2018-01-20 21:57:15,653 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2018-01-20 21:57:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-01-20 21:57:15,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 127. [2018-01-20 21:57:15,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-01-20 21:57:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 153 transitions. [2018-01-20 21:57:15,663 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 153 transitions. Word has length 35 [2018-01-20 21:57:15,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:15,663 INFO L432 AbstractCegarLoop]: Abstraction has 127 states and 153 transitions. [2018-01-20 21:57:15,663 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-20 21:57:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 153 transitions. [2018-01-20 21:57:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-01-20 21:57:15,665 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:15,665 INFO L322 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:57:15,665 INFO L371 AbstractCegarLoop]: === Iteration 10 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-20 21:57:15,665 INFO L82 PathProgramCache]: Analyzing trace with hash -317523699, now seen corresponding path program 8 times [2018-01-20 21:57:15,665 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:15,666 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:15,666 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:15,667 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:15,667 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:57:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:57:15,740 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 21:57:15,752 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:57:15,756 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2018-01-20 21:57:15,757 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:57:15,775 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:15,775 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:15,775 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:15,775 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:15,775 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:15,775 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:15,775 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:15,775 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFexgcdErr0EnsuresViolation======== [2018-01-20 21:57:15,776 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:15,778 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:15,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-01-20 21:57:15,780 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:15,781 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:15,781 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFexgcdErr0EnsuresViolation]=== [2018-01-20 21:57:15,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2095005952, now seen corresponding path program 1 times [2018-01-20 21:57:15,781 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:15,781 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:15,782 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:15,782 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:15,782 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:15,792 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-20 21:57:15,900 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:15,900 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:15,912 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:15,962 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-20 21:57:16,002 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:16,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-01-20 21:57:16,003 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:16,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:16,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:16,003 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:16,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:16,089 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:16,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:16,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2018-01-20 21:57:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:16,092 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:16,092 INFO L226 Difference]: Without dead ends: 161 [2018-01-20 21:57:16,094 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:16,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-01-20 21:57:16,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-01-20 21:57:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-01-20 21:57:16,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 202 transitions. [2018-01-20 21:57:16,106 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 202 transitions. Word has length 71 [2018-01-20 21:57:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:16,106 INFO L432 AbstractCegarLoop]: Abstraction has 161 states and 202 transitions. [2018-01-20 21:57:16,106 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:16,106 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 202 transitions. [2018-01-20 21:57:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-01-20 21:57:16,108 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:16,108 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:16,108 INFO L371 AbstractCegarLoop]: === Iteration 2 === [DUPFFexgcdErr0EnsuresViolation]=== [2018-01-20 21:57:16,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1742614248, now seen corresponding path program 1 times [2018-01-20 21:57:16,109 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:16,109 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:16,110 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,110 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:16,110 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:16,127 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-20 21:57:16,182 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:16,182 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 21:57:16,182 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 21:57:16,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 21:57:16,183 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 21:57:16,184 INFO L87 Difference]: Start difference. First operand 161 states and 202 transitions. Second operand 4 states. [2018-01-20 21:57:16,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:16,262 INFO L93 Difference]: Finished difference Result 301 states and 379 transitions. [2018-01-20 21:57:16,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 21:57:16,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2018-01-20 21:57:16,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:16,264 INFO L225 Difference]: With dead ends: 301 [2018-01-20 21:57:16,265 INFO L226 Difference]: Without dead ends: 166 [2018-01-20 21:57:16,266 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-01-20 21:57:16,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-01-20 21:57:16,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-01-20 21:57:16,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 206 transitions. [2018-01-20 21:57:16,284 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 206 transitions. Word has length 80 [2018-01-20 21:57:16,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:16,284 INFO L432 AbstractCegarLoop]: Abstraction has 166 states and 206 transitions. [2018-01-20 21:57:16,285 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 21:57:16,285 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 206 transitions. [2018-01-20 21:57:16,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-01-20 21:57:16,286 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:16,286 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:16,286 INFO L371 AbstractCegarLoop]: === Iteration 3 === [DUPFFexgcdErr0EnsuresViolation]=== [2018-01-20 21:57:16,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1504134624, now seen corresponding path program 1 times [2018-01-20 21:57:16,287 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:16,287 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:16,288 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,288 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:16,288 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:16,315 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:16,376 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-01-20 21:57:16,376 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:16,395 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-20 21:57:16,396 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 21:57:16,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 21:57:16,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 21:57:16,396 INFO L87 Difference]: Start difference. First operand 166 states and 206 transitions. Second operand 3 states. [2018-01-20 21:57:16,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:16,427 INFO L93 Difference]: Finished difference Result 283 states and 354 transitions. [2018-01-20 21:57:16,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 21:57:16,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2018-01-20 21:57:16,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:16,430 INFO L225 Difference]: With dead ends: 283 [2018-01-20 21:57:16,430 INFO L226 Difference]: Without dead ends: 166 [2018-01-20 21:57:16,431 INFO L525 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 [2018-01-20 21:57:16,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-01-20 21:57:16,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-01-20 21:57:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-01-20 21:57:16,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 205 transitions. [2018-01-20 21:57:16,444 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 205 transitions. Word has length 89 [2018-01-20 21:57:16,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:16,445 INFO L432 AbstractCegarLoop]: Abstraction has 166 states and 205 transitions. [2018-01-20 21:57:16,445 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 21:57:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 205 transitions. [2018-01-20 21:57:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-01-20 21:57:16,448 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:16,448 INFO L322 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 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] [2018-01-20 21:57:16,448 INFO L371 AbstractCegarLoop]: === Iteration 4 === [DUPFFexgcdErr0EnsuresViolation]=== [2018-01-20 21:57:16,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1537359461, now seen corresponding path program 1 times [2018-01-20 21:57:16,448 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:16,449 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:16,450 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,451 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:16,451 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:16,482 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:16,568 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-01-20 21:57:16,568 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:16,568 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 21:57:16,569 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 21:57:16,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 21:57:16,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 21:57:16,569 INFO L87 Difference]: Start difference. First operand 166 states and 205 transitions. Second operand 3 states. [2018-01-20 21:57:16,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:16,723 INFO L93 Difference]: Finished difference Result 166 states and 205 transitions. [2018-01-20 21:57:16,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 21:57:16,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2018-01-20 21:57:16,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:16,724 INFO L225 Difference]: With dead ends: 166 [2018-01-20 21:57:16,725 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:16,726 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 21:57:16,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:16,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:16,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:16,726 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2018-01-20 21:57:16,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:16,727 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:16,727 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 21:57:16,727 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:16,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:16,732 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:16,732 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:16,732 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:16,732 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:16,733 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:16,733 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:16,733 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:16,733 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 21:57:16,733 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:16,740 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:16,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 21:57:16,740 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:16,741 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 21:57:16,741 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 21:57:16,741 INFO L82 PathProgramCache]: Analyzing trace with hash 312865, now seen corresponding path program 1 times [2018-01-20 21:57:16,741 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:16,741 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:16,742 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,742 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:16,742 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:57:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 21:57:16,747 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 21:57:16,748 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 21:57:16,750 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:16,750 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:16,750 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:16,750 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:16,750 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:16,750 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:16,750 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:16,750 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFcopyErr0EnsuresViolation======== [2018-01-20 21:57:16,751 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-01-20 21:57:16,754 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:16,754 INFO L322 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2018-01-20 21:57:16,754 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFcopyErr0EnsuresViolation]=== [2018-01-20 21:57:16,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1190895175, now seen corresponding path program 1 times [2018-01-20 21:57:16,755 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:16,755 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:16,755 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,756 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:16,756 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:16,766 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:16,832 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-01-20 21:57:16,832 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:16,832 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:16,840 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:16,894 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-01-20 21:57:16,937 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:16,937 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-01-20 21:57:16,938 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:16,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:16,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:16,938 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:17,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:17,007 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:17,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:17,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2018-01-20 21:57:17,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:17,008 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:17,009 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:17,010 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:17,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:17,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:17,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2018-01-20 21:57:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:17,011 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:17,011 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:17,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:17,013 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:17,013 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:17,013 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:17,014 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:17,014 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:17,014 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:17,014 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:17,014 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFswapErr0EnsuresViolation======== [2018-01-20 21:57:17,014 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:17,016 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-01-20 21:57:17,019 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:17,020 INFO L322 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2018-01-20 21:57:17,020 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFswapErr0EnsuresViolation]=== [2018-01-20 21:57:17,020 INFO L82 PathProgramCache]: Analyzing trace with hash -331476965, now seen corresponding path program 1 times [2018-01-20 21:57:17,020 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:17,020 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:17,021 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:17,021 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:17,021 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:17,035 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-01-20 21:57:17,152 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:17,152 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:17,160 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:17,265 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-01-20 21:57:17,331 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:17,331 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-01-20 21:57:17,332 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:17,332 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:17,332 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:17,332 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:17,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:17,521 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:17,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:17,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2018-01-20 21:57:17,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:17,522 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:17,522 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:17,523 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:17,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:17,524 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2018-01-20 21:57:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:17,524 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:17,525 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:17,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:17,530 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:17,531 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:17,531 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:17,531 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:17,531 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:17,531 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:17,531 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:17,531 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFshift_addErr0EnsuresViolation======== [2018-01-20 21:57:17,531 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:17,533 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:17,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-01-20 21:57:17,539 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:17,540 INFO L322 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2018-01-20 21:57:17,540 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFshift_addErr0EnsuresViolation]=== [2018-01-20 21:57:17,541 INFO L82 PathProgramCache]: Analyzing trace with hash -2020531893, now seen corresponding path program 1 times [2018-01-20 21:57:17,541 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:17,541 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:17,541 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:17,542 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:17,542 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:17,557 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2018-01-20 21:57:17,677 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:17,677 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:17,685 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:17,780 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2018-01-20 21:57:17,819 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:17,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-01-20 21:57:17,819 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:17,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:17,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:17,820 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:18,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:18,021 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:18,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:18,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2018-01-20 21:57:18,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:18,021 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:18,022 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:18,023 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:18,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:18,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:18,023 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2018-01-20 21:57:18,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:18,024 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:18,024 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:18,024 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:18,025 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:18,025 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:18,025 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:18,025 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:18,025 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:18,025 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:18,025 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:18,025 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFdegErr0EnsuresViolation======== [2018-01-20 21:57:18,026 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:18,027 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:18,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-20 21:57:18,027 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:18,027 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 21:57:18,028 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFdegErr0EnsuresViolation]=== [2018-01-20 21:57:18,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1016018150, now seen corresponding path program 1 times [2018-01-20 21:57:18,028 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:18,028 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:18,028 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,029 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:18,029 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:18,035 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-01-20 21:57:18,140 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:18,140 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:18,149 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:18,184 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-01-20 21:57:18,208 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:18,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 5 [2018-01-20 21:57:18,209 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:18,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:18,209 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:18,209 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:18,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:18,300 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:18,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:18,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2018-01-20 21:57:18,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:18,300 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:18,301 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:18,302 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:18,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-01-20 21:57:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:18,303 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:18,304 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:18,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:18,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:18,306 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:18,306 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:18,306 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:18,306 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:18,306 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:18,306 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:18,306 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:18,306 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 21:57:18,306 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:18,308 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-01-20 21:57:18,310 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:18,310 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:18,310 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:57:18,310 INFO L82 PathProgramCache]: Analyzing trace with hash 181584116, now seen corresponding path program 1 times [2018-01-20 21:57:18,310 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:18,310 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:18,311 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,311 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:18,311 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:18,320 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:18,417 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-20 21:57:18,417 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:18,417 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:18,425 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:18,470 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-20 21:57:18,509 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:18,509 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-01-20 21:57:18,510 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:18,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:18,510 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:18,510 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:18,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:18,577 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:18,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:18,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2018-01-20 21:57:18,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:18,580 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:18,580 INFO L226 Difference]: Without dead ends: 169 [2018-01-20 21:57:18,582 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-01-20 21:57:18,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-01-20 21:57:18,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-01-20 21:57:18,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 210 transitions. [2018-01-20 21:57:18,595 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 210 transitions. Word has length 80 [2018-01-20 21:57:18,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:18,595 INFO L432 AbstractCegarLoop]: Abstraction has 169 states and 210 transitions. [2018-01-20 21:57:18,595 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:18,595 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 210 transitions. [2018-01-20 21:57:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-01-20 21:57:18,596 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:18,597 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:18,597 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:57:18,598 INFO L82 PathProgramCache]: Analyzing trace with hash 399018460, now seen corresponding path program 1 times [2018-01-20 21:57:18,598 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:18,598 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:18,599 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,599 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:18,599 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:18,619 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-20 21:57:18,656 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:18,656 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 21:57:18,656 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 21:57:18,657 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 21:57:18,657 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 21:57:18,657 INFO L87 Difference]: Start difference. First operand 169 states and 210 transitions. Second operand 4 states. [2018-01-20 21:57:18,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:18,736 INFO L93 Difference]: Finished difference Result 317 states and 395 transitions. [2018-01-20 21:57:18,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 21:57:18,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-01-20 21:57:18,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:18,739 INFO L225 Difference]: With dead ends: 317 [2018-01-20 21:57:18,739 INFO L226 Difference]: Without dead ends: 174 [2018-01-20 21:57:18,740 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:18,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-01-20 21:57:18,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-01-20 21:57:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-01-20 21:57:18,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 214 transitions. [2018-01-20 21:57:18,753 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 214 transitions. Word has length 89 [2018-01-20 21:57:18,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:18,753 INFO L432 AbstractCegarLoop]: Abstraction has 174 states and 214 transitions. [2018-01-20 21:57:18,753 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 21:57:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 214 transitions. [2018-01-20 21:57:18,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-01-20 21:57:18,755 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:18,755 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:18,755 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:57:18,755 INFO L82 PathProgramCache]: Analyzing trace with hash 546523604, now seen corresponding path program 1 times [2018-01-20 21:57:18,755 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:18,755 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:18,756 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,756 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:18,756 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:18,776 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-01-20 21:57:18,812 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:18,812 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-20 21:57:18,813 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 21:57:18,813 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 21:57:18,813 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 21:57:18,813 INFO L87 Difference]: Start difference. First operand 174 states and 214 transitions. Second operand 3 states. [2018-01-20 21:57:18,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:18,826 INFO L93 Difference]: Finished difference Result 299 states and 370 transitions. [2018-01-20 21:57:18,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 21:57:18,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2018-01-20 21:57:18,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:18,829 INFO L225 Difference]: With dead ends: 299 [2018-01-20 21:57:18,829 INFO L226 Difference]: Without dead ends: 174 [2018-01-20 21:57:18,830 INFO L525 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 [2018-01-20 21:57:18,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-01-20 21:57:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-01-20 21:57:18,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-01-20 21:57:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2018-01-20 21:57:18,841 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 98 [2018-01-20 21:57:18,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:18,841 INFO L432 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2018-01-20 21:57:18,841 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 21:57:18,842 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2018-01-20 21:57:18,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-01-20 21:57:18,843 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:18,843 INFO L322 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2018-01-20 21:57:18,843 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:57:18,843 INFO L82 PathProgramCache]: Analyzing trace with hash 297304484, now seen corresponding path program 1 times [2018-01-20 21:57:18,843 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:18,843 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:18,844 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,844 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:18,844 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:18,867 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-01-20 21:57:18,957 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:18,957 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:18,966 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:19,026 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-01-20 21:57:19,247 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:19,247 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2018-01-20 21:57:19,248 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-20 21:57:19,248 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-20 21:57:19,248 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-01-20 21:57:19,248 INFO L87 Difference]: Start difference. First operand 174 states and 213 transitions. Second operand 10 states. [2018-01-20 21:57:19,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:19,838 INFO L93 Difference]: Finished difference Result 353 states and 436 transitions. [2018-01-20 21:57:19,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-20 21:57:19,838 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2018-01-20 21:57:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:19,840 INFO L225 Difference]: With dead ends: 353 [2018-01-20 21:57:19,840 INFO L226 Difference]: Without dead ends: 183 [2018-01-20 21:57:19,841 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-01-20 21:57:19,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-01-20 21:57:19,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 178. [2018-01-20 21:57:19,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-01-20 21:57:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 218 transitions. [2018-01-20 21:57:19,854 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 218 transitions. Word has length 105 [2018-01-20 21:57:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:19,854 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 218 transitions. [2018-01-20 21:57:19,854 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-20 21:57:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 218 transitions. [2018-01-20 21:57:19,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-01-20 21:57:19,856 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:19,856 INFO L322 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2018-01-20 21:57:19,856 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:57:19,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1453710202, now seen corresponding path program 1 times [2018-01-20 21:57:19,857 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:19,857 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:19,857 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:19,858 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:19,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:19,887 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-01-20 21:57:20,038 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:20,038 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:20,045 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:20,111 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-01-20 21:57:20,193 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:20,193 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2018-01-20 21:57:20,193 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-20 21:57:20,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-20 21:57:20,194 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-01-20 21:57:20,194 INFO L87 Difference]: Start difference. First operand 178 states and 218 transitions. Second operand 11 states. [2018-01-20 21:57:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:20,693 INFO L93 Difference]: Finished difference Result 361 states and 446 transitions. [2018-01-20 21:57:20,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-20 21:57:20,694 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2018-01-20 21:57:20,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:20,695 INFO L225 Difference]: With dead ends: 361 [2018-01-20 21:57:20,695 INFO L226 Difference]: Without dead ends: 187 [2018-01-20 21:57:20,696 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-01-20 21:57:20,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-01-20 21:57:20,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 179. [2018-01-20 21:57:20,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-01-20 21:57:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 220 transitions. [2018-01-20 21:57:20,703 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 220 transitions. Word has length 107 [2018-01-20 21:57:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:20,703 INFO L432 AbstractCegarLoop]: Abstraction has 179 states and 220 transitions. [2018-01-20 21:57:20,703 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-20 21:57:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 220 transitions. [2018-01-20 21:57:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-01-20 21:57:20,704 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:20,705 INFO L322 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2018-01-20 21:57:20,705 INFO L371 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 21:57:20,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1361714332, now seen corresponding path program 2 times [2018-01-20 21:57:20,705 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:20,705 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:20,706 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:20,706 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:20,706 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:20,725 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-01-20 21:57:20,948 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:20,948 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:20,955 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-20 21:57:20,988 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:21,026 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:21,039 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-20 21:57:21,043 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-01-20 21:57:21,419 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:21,420 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2018-01-20 21:57:21,421 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-20 21:57:21,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-20 21:57:21,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-01-20 21:57:21,421 INFO L87 Difference]: Start difference. First operand 179 states and 220 transitions. Second operand 12 states. [2018-01-20 21:57:21,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:21,706 INFO L93 Difference]: Finished difference Result 220 states and 266 transitions. [2018-01-20 21:57:21,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-20 21:57:21,706 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2018-01-20 21:57:21,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:21,707 INFO L225 Difference]: With dead ends: 220 [2018-01-20 21:57:21,707 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:21,708 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2018-01-20 21:57:21,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:21,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2018-01-20 21:57:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:21,708 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:21,708 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-20 21:57:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:21,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:21,710 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:21,710 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:21,710 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:21,710 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:21,710 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:21,711 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:21,711 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:21,711 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFfreeErr0EnsuresViolation======== [2018-01-20 21:57:21,711 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:21,712 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:21,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-01-20 21:57:21,714 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:21,714 INFO L322 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2018-01-20 21:57:21,714 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFfreeErr0EnsuresViolation]=== [2018-01-20 21:57:21,714 INFO L82 PathProgramCache]: Analyzing trace with hash -331327684, now seen corresponding path program 1 times [2018-01-20 21:57:21,714 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:21,714 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:21,715 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:21,715 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:21,715 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:21,724 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:21,819 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-01-20 21:57:21,820 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:21,820 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:21,827 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:21,926 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-01-20 21:57:21,977 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:21,977 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-01-20 21:57:21,978 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:21,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:21,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:21,978 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:22,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:22,061 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:22,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:22,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2018-01-20 21:57:22,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:22,062 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:22,062 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:22,063 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:22,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:22,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:22,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:22,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2018-01-20 21:57:22,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:22,065 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:22,065 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:22,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:22,066 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:22,066 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:22,067 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:22,067 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:22,067 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:22,067 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:22,067 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:22,067 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 21:57:22,067 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:22,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-01-20 21:57:22,070 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:22,070 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:22,070 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 21:57:22,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1014335068, now seen corresponding path program 1 times [2018-01-20 21:57:22,070 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:22,071 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:22,071 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:22,071 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:22,072 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:22,080 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-20 21:57:22,133 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:22,133 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:22,144 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:22,191 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:22,197 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-20 21:57:22,230 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:22,230 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-01-20 21:57:22,231 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:22,231 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:22,231 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:22,231 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:22,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:22,303 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:22,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:22,304 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2018-01-20 21:57:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:22,305 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:22,305 INFO L226 Difference]: Without dead ends: 167 [2018-01-20 21:57:22,306 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:22,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-01-20 21:57:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-01-20 21:57:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-01-20 21:57:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 208 transitions. [2018-01-20 21:57:22,319 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 208 transitions. Word has length 78 [2018-01-20 21:57:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:22,319 INFO L432 AbstractCegarLoop]: Abstraction has 167 states and 208 transitions. [2018-01-20 21:57:22,319 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 208 transitions. [2018-01-20 21:57:22,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-01-20 21:57:22,320 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:22,320 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:22,320 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-20 21:57:22,320 INFO L82 PathProgramCache]: Analyzing trace with hash -844276596, now seen corresponding path program 1 times [2018-01-20 21:57:22,321 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:22,321 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:22,321 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:22,322 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:22,322 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:22,335 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-20 21:57:22,372 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:22,372 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 21:57:22,372 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 21:57:22,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 21:57:22,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 21:57:22,373 INFO L87 Difference]: Start difference. First operand 167 states and 208 transitions. Second operand 4 states. [2018-01-20 21:57:22,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:22,442 INFO L93 Difference]: Finished difference Result 313 states and 391 transitions. [2018-01-20 21:57:22,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 21:57:22,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 87 [2018-01-20 21:57:22,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:22,444 INFO L225 Difference]: With dead ends: 313 [2018-01-20 21:57:22,444 INFO L226 Difference]: Without dead ends: 172 [2018-01-20 21:57:22,445 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:22,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-01-20 21:57:22,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-01-20 21:57:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-01-20 21:57:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 212 transitions. [2018-01-20 21:57:22,454 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 212 transitions. Word has length 87 [2018-01-20 21:57:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:22,454 INFO L432 AbstractCegarLoop]: Abstraction has 172 states and 212 transitions. [2018-01-20 21:57:22,454 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 21:57:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 212 transitions. [2018-01-20 21:57:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-01-20 21:57:22,455 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:22,456 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-01-20 21:57:22,456 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation]=== [2018-01-20 21:57:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1483228540, now seen corresponding path program 1 times [2018-01-20 21:57:22,456 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:22,456 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:22,457 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:22,457 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:22,457 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:22,476 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-01-20 21:57:22,504 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 21:57:22,504 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-20 21:57:22,505 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 21:57:22,505 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 21:57:22,505 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 21:57:22,505 INFO L87 Difference]: Start difference. First operand 172 states and 212 transitions. Second operand 3 states. [2018-01-20 21:57:22,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:22,517 INFO L93 Difference]: Finished difference Result 295 states and 366 transitions. [2018-01-20 21:57:22,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 21:57:22,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2018-01-20 21:57:22,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:22,519 INFO L225 Difference]: With dead ends: 295 [2018-01-20 21:57:22,519 INFO L226 Difference]: Without dead ends: 172 [2018-01-20 21:57:22,520 INFO L525 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 [2018-01-20 21:57:22,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-01-20 21:57:22,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-01-20 21:57:22,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-01-20 21:57:22,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 211 transitions. [2018-01-20 21:57:22,528 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 211 transitions. Word has length 96 [2018-01-20 21:57:22,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:22,529 INFO L432 AbstractCegarLoop]: Abstraction has 172 states and 211 transitions. [2018-01-20 21:57:22,529 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 21:57:22,529 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 211 transitions. [2018-01-20 21:57:22,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-01-20 21:57:22,530 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:22,530 INFO L322 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2018-01-20 21:57:22,530 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation]=== [2018-01-20 21:57:22,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1095280212, now seen corresponding path program 1 times [2018-01-20 21:57:22,530 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:22,531 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:22,531 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:22,531 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:22,532 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:22,554 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-01-20 21:57:22,645 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:22,645 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:22,656 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:22,741 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-01-20 21:57:22,808 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:22,808 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2018-01-20 21:57:22,809 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-20 21:57:22,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-20 21:57:22,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-01-20 21:57:22,809 INFO L87 Difference]: Start difference. First operand 172 states and 211 transitions. Second operand 10 states. [2018-01-20 21:57:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:23,002 INFO L93 Difference]: Finished difference Result 349 states and 432 transitions. [2018-01-20 21:57:23,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-20 21:57:23,002 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2018-01-20 21:57:23,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:23,004 INFO L225 Difference]: With dead ends: 349 [2018-01-20 21:57:23,004 INFO L226 Difference]: Without dead ends: 181 [2018-01-20 21:57:23,005 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-01-20 21:57:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-01-20 21:57:23,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 176. [2018-01-20 21:57:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-01-20 21:57:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 216 transitions. [2018-01-20 21:57:23,015 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 216 transitions. Word has length 103 [2018-01-20 21:57:23,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:23,015 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 216 transitions. [2018-01-20 21:57:23,015 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-20 21:57:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 216 transitions. [2018-01-20 21:57:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-01-20 21:57:23,016 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:23,016 INFO L322 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2018-01-20 21:57:23,016 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation]=== [2018-01-20 21:57:23,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1722181194, now seen corresponding path program 1 times [2018-01-20 21:57:23,017 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:23,017 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:23,018 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:23,018 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:23,018 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:23,040 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-01-20 21:57:23,154 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:23,155 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:23,162 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:23,230 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:23,275 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-01-20 21:57:23,310 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:23,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2018-01-20 21:57:23,311 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-20 21:57:23,311 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-20 21:57:23,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-01-20 21:57:23,312 INFO L87 Difference]: Start difference. First operand 176 states and 216 transitions. Second operand 11 states. [2018-01-20 21:57:23,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:23,526 INFO L93 Difference]: Finished difference Result 357 states and 442 transitions. [2018-01-20 21:57:23,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-20 21:57:23,527 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 105 [2018-01-20 21:57:23,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:23,528 INFO L225 Difference]: With dead ends: 357 [2018-01-20 21:57:23,528 INFO L226 Difference]: Without dead ends: 185 [2018-01-20 21:57:23,529 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-01-20 21:57:23,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-01-20 21:57:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 177. [2018-01-20 21:57:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-01-20 21:57:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 218 transitions. [2018-01-20 21:57:23,538 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 218 transitions. Word has length 105 [2018-01-20 21:57:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:23,538 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 218 transitions. [2018-01-20 21:57:23,538 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-20 21:57:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 218 transitions. [2018-01-20 21:57:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-01-20 21:57:23,539 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:23,540 INFO L322 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2018-01-20 21:57:23,540 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation]=== [2018-01-20 21:57:23,540 INFO L82 PathProgramCache]: Analyzing trace with hash -707561452, now seen corresponding path program 2 times [2018-01-20 21:57:23,540 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:23,540 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:23,541 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:23,541 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:23,541 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:23,568 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-01-20 21:57:23,663 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:23,663 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:23,672 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-20 21:57:23,712 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:23,758 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-20 21:57:23,764 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-20 21:57:23,769 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:23,843 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-01-20 21:57:23,880 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-20 21:57:23,880 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2018-01-20 21:57:23,881 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-20 21:57:23,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-20 21:57:23,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-01-20 21:57:23,881 INFO L87 Difference]: Start difference. First operand 177 states and 218 transitions. Second operand 12 states. [2018-01-20 21:57:24,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:24,126 INFO L93 Difference]: Finished difference Result 218 states and 264 transitions. [2018-01-20 21:57:24,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-20 21:57:24,127 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2018-01-20 21:57:24,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:24,127 INFO L225 Difference]: With dead ends: 218 [2018-01-20 21:57:24,127 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:24,128 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2018-01-20 21:57:24,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:24,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:24,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:24,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2018-01-20 21:57:24,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:24,129 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:24,129 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-20 21:57:24,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:24,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:24,131 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 21:57:24,131 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 21:57:24,131 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 21:57:24,131 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 21:57:24,131 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 21:57:24,131 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 21:57:24,132 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 21:57:24,132 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == FFmulErr0EnsuresViolation======== [2018-01-20 21:57:24,132 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 21:57:24,133 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-20 21:57:24,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-01-20 21:57:24,136 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 21:57:24,136 INFO L322 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2018-01-20 21:57:24,136 INFO L371 AbstractCegarLoop]: === Iteration 1 === [FFmulErr0EnsuresViolation]=== [2018-01-20 21:57:24,136 INFO L82 PathProgramCache]: Analyzing trace with hash -713556063, now seen corresponding path program 1 times [2018-01-20 21:57:24,136 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-20 21:57:24,136 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-20 21:57:24,137 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:24,137 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:24,137 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 21:57:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:24,150 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 21:57:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2018-01-20 21:57:24,247 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-20 21:57:24,247 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-20 21:57:24,256 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 21:57:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 21:57:24,356 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-20 21:57:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-01-20 21:57:24,406 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-20 21:57:24,407 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2018-01-20 21:57:24,407 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 21:57:24,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 21:57:24,408 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:24,408 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2018-01-20 21:57:24,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 21:57:24,499 INFO L93 Difference]: Finished difference Result 329 states and 420 transitions. [2018-01-20 21:57:24,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 21:57:24,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 173 [2018-01-20 21:57:24,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 21:57:24,500 INFO L225 Difference]: With dead ends: 329 [2018-01-20 21:57:24,500 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 21:57:24,501 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-20 21:57:24,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 21:57:24,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 21:57:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 21:57:24,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 21:57:24,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 173 [2018-01-20 21:57:24,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 21:57:24,501 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 21:57:24,502 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 21:57:24,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 21:57:24,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 21:57:24,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:57:24 BoogieIcfgContainer [2018-01-20 21:57:24,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 21:57:24,505 INFO L168 Benchmark]: Toolchain (without parser) took 14025.51 ms. Allocated memory was 304.1 MB in the beginning and 686.3 MB in the end (delta: 382.2 MB). Free memory was 261.4 MB in the beginning and 488.9 MB in the end (delta: -227.5 MB). Peak memory consumption was 154.7 MB. Max. memory is 5.3 GB. [2018-01-20 21:57:24,506 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 304.1 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 21:57:24,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.02 ms. Allocated memory is still 304.1 MB. Free memory was 261.4 MB in the beginning and 247.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-20 21:57:24,506 INFO L168 Benchmark]: Boogie Preprocessor took 44.96 ms. Allocated memory is still 304.1 MB. Free memory was 247.4 MB in the beginning and 245.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-20 21:57:24,506 INFO L168 Benchmark]: RCFGBuilder took 581.91 ms. Allocated memory is still 304.1 MB. Free memory was 245.4 MB in the beginning and 205.0 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 5.3 GB. [2018-01-20 21:57:24,507 INFO L168 Benchmark]: TraceAbstraction took 13149.36 ms. Allocated memory was 304.1 MB in the beginning and 686.3 MB in the end (delta: 382.2 MB). Free memory was 204.0 MB in the beginning and 488.9 MB in the end (delta: -284.9 MB). Peak memory consumption was 97.3 MB. Max. memory is 5.3 GB. [2018-01-20 21:57:24,509 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 304.1 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 242.02 ms. Allocated memory is still 304.1 MB. Free memory was 261.4 MB in the beginning and 247.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 44.96 ms. Allocated memory is still 304.1 MB. Free memory was 247.4 MB in the beginning and 245.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 581.91 ms. Allocated memory is still 304.1 MB. Free memory was 245.4 MB in the beginning and 205.0 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 13149.36 ms. Allocated memory was 304.1 MB in the beginning and 686.3 MB in the end (delta: 382.2 MB). Free memory was 204.0 MB in the beginning and 488.9 MB in the end (delta: -284.9 MB). Peak memory consumption was 97.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 973]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1047] DUPFF f, g, cf, cg, h; VAL [f={16:0}, g={17:0}] [L1048] CALL DUPFFnew(1) VAL [\old(maxdeg)=1] [L975] EXPR, FCALL malloc(sizeof(struct DUPFFstruct)) VAL [\old(maxdeg)=1, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L975] DUPFF ans = (DUPFF)malloc(sizeof(struct DUPFFstruct)); VAL [\old(maxdeg)=1, ans={14:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L976] FCALL ans->coeffs = 0 VAL [\old(maxdeg)=1, ans={14:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L977] COND TRUE maxdeg >= 0 VAL [\old(maxdeg)=1, ans={14:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L978] EXPR, FCALL malloc((maxdeg+1)*sizeof(FFelem)) VAL [\old(maxdeg)=1, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L978] FCALL ans->coeffs = (FFelem*)malloc((maxdeg+1)*sizeof(FFelem)) VAL [\old(maxdeg)=1, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L979] EXPR, FCALL ans->coeffs VAL [\old(maxdeg)=1, ans={14:0}, ans->coeffs={24:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L979] FCALL memset(ans->coeffs, 0, (maxdeg+1)*sizeof(FFelem)) VAL [\old(maxdeg)=1, ans={14:0}, ans->coeffs={24:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1, memset(ans->coeffs, 0, (maxdeg+1)*sizeof(FFelem))={24:0}] [L981] FCALL ans->maxdeg = maxdeg VAL [\old(maxdeg)=1, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L982] FCALL ans->deg = -1 VAL [\old(maxdeg)=1, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L983] return ans; VAL [\old(maxdeg)=1, \result={14:0}, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] - StatisticsResult: Ultimate Automizer benchmark data for error location: DUPFFnewErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. UNSAFE Result, 4.3s OverallTime, 10 OverallIterations, 8 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 959 SDtfs, 428 SDslu, 6977 SDs, 0 SdLazy, 819 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 358 GetRequests, 214 SyntacticMatches, 9 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 72 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 531 NumberOfCodeBlocks, 531 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 29391 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1057 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 0/168 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 998]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: DUPFFexgcdErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 0.9s OverallTime, 4 OverallIterations, 6 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 691 SDtfs, 110 SDslu, 873 SDs, 0 SdLazy, 135 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=2, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 419 ConstructedInterpolants, 0 QuantifiedInterpolants, 45135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 200/209 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, 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, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 991]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: DUPFFcopyErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 5 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 193 SDtfs, 29 SDslu, 356 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 19272 SizeOfPredicates, 0 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 111/120 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 988]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: DUPFFswapErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 6 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 193 SDtfs, 29 SDslu, 356 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 60147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 626 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 411/456 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 995]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: DUPFFshift_addErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 9 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 193 SDtfs, 29 SDslu, 356 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 404 NumberOfCodeBlocks, 404 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 402 ConstructedInterpolants, 0 QuantifiedInterpolants, 89445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 744 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 627/672 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 969]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: DUPFFdegErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 193 SDtfs, 29 SDslu, 356 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 6439 SizeOfPredicates, 0 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 11/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 3.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 944 SDtfs, 159 SDslu, 3423 SDs, 0 SdLazy, 523 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 457 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=5, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 989 NumberOfCodeBlocks, 989 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 979 ConstructedInterpolants, 12 QuantifiedInterpolants, 157484 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1532 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 375/441 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 985]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: DUPFFfreeErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 6 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 193 SDtfs, 29 SDslu, 356 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 60147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 617 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 411/456 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1045]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 2.0s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 936 SDtfs, 158 SDslu, 3527 SDs, 0 SdLazy, 515 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177occurred in iteration=5, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 969 NumberOfCodeBlocks, 969 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 959 ConstructedInterpolants, 12 QuantifiedInterpolants, 152440 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1520 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 375/441 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 958]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: FFmulErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 7 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 193 SDtfs, 29 SDslu, 356 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 66564 SizeOfPredicates, 0 NumberOfNonLiveVariables, 646 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 471/516 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-5-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-6-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-7-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-8-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-9-2018-01-20_21-57-24-520.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-10-2018-01-20_21-57-24-520.csv Received shutdown request...