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/reducercommutativity/sum_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d63d1fb [2018-01-27 23:08:52,753 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-27 23:08:52,755 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-27 23:08:52,772 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-27 23:08:52,773 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-27 23:08:52,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-27 23:08:52,775 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-27 23:08:52,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-27 23:08:52,780 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-27 23:08:52,782 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-27 23:08:52,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-27 23:08:52,784 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-27 23:08:52,785 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-27 23:08:52,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-27 23:08:52,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-27 23:08:52,789 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-27 23:08:52,792 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-27 23:08:52,794 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-27 23:08:52,795 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-27 23:08:52,796 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-27 23:08:52,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-27 23:08:52,803 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-27 23:08:52,804 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-27 23:08:52,804 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 [2018-01-27 23:08:52,815 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-27 23:08:52,816 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-27 23:08:52,816 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-27 23:08:52,817 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-27 23:08:52,817 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-27 23:08:52,817 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-27 23:08:52,817 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-27 23:08:52,818 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-27 23:08:52,818 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-27 23:08:52,818 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-27 23:08:52,818 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-27 23:08:52,819 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-27 23:08:52,819 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-27 23:08:52,819 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-27 23:08:52,819 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-27 23:08:52,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-27 23:08:52,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-27 23:08:52,820 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-27 23:08:52,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-27 23:08:52,820 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-27 23:08:52,821 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-27 23:08:52,821 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-27 23:08:52,821 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-27 23:08:52,821 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-27 23:08:52,822 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-27 23:08:52,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-27 23:08:52,822 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-27 23:08:52,822 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-27 23:08:52,822 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-27 23:08:52,823 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-27 23:08:52,823 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-27 23:08:52,823 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-27 23:08:52,823 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-27 23:08:52,823 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-27 23:08:52,823 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-27 23:08:52,824 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-27 23:08:52,824 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-27 23:08:52,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-27 23:08:52,888 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-27 23:08:52,892 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-27 23:08:52,893 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-27 23:08:52,894 INFO L276 PluginConnector]: CDTParser initialized [2018-01-27 23:08:52,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/sum_true-unreach-call_true-termination.i [2018-01-27 23:08:53,063 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-27 23:08:53,073 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-27 23:08:53,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-27 23:08:53,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-27 23:08:53,086 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-27 23:08:53,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33681619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53, skipping insertion in model container [2018-01-27 23:08:53,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,110 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-27 23:08:53,133 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-27 23:08:53,306 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-27 23:08:53,336 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-27 23:08:53,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53 WrapperNode [2018-01-27 23:08:53,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-27 23:08:53,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-27 23:08:53,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-27 23:08:53,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-27 23:08:53,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2018-01-27 23:08:53,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-27 23:08:53,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-27 23:08:53,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-27 23:08:53,411 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-27 23:08:53,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (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 [2018-01-27 23:08:53,482 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-27 23:08:53,482 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-27 23:08:53,482 INFO L136 BoogieDeclarations]: Found implementation of procedure sum [2018-01-27 23:08:53,482 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-27 23:08:53,482 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-27 23:08:53,483 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-27 23:08:53,483 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-27 23:08:53,486 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-27 23:08:53,486 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-27 23:08:53,486 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-27 23:08:53,487 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-27 23:08:53,487 INFO L128 BoogieDeclarations]: Found specification of procedure sum [2018-01-27 23:08:53,487 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-27 23:08:53,487 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-27 23:08:53,487 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-27 23:08:53,947 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-27 23:08:53,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:08:53 BoogieIcfgContainer [2018-01-27 23:08:53,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-27 23:08:53,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-27 23:08:53,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-27 23:08:53,953 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-27 23:08:53,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:08:53" (1/3) ... [2018-01-27 23:08:53,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512a84a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:08:53, skipping insertion in model container [2018-01-27 23:08:53,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (2/3) ... [2018-01-27 23:08:53,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512a84a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:08:53, skipping insertion in model container [2018-01-27 23:08:53,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:08:53" (3/3) ... [2018-01-27 23:08:53,958 INFO L105 eAbstractionObserver]: Analyzing ICFG sum_true-unreach-call_true-termination.i [2018-01-27 23:08:53,968 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-27 23:08:53,979 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-27 23:08:54,034 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-27 23:08:54,034 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-27 23:08:54,034 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-27 23:08:54,034 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-27 23:08:54,034 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-27 23:08:54,035 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-27 23:08:54,035 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-27 23:08:54,035 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-27 23:08:54,036 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-27 23:08:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-27 23:08:54,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-27 23:08:54,068 INFO L322 BasicCegarLoop]: Found error trace [2018-01-27 23:08:54,069 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-27 23:08:54,072 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-27 23:08:54,080 INFO L82 PathProgramCache]: Analyzing trace with hash 105712, now seen corresponding path program 1 times [2018-01-27 23:08:54,082 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-27 23:08:54,083 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-27 23:08:54,147 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,148 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:54,148 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-27 23:08:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-27 23:08:54,229 INFO L389 BasicCegarLoop]: Counterexample might be feasible [2018-01-27 23:08:54,237 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-27 23:08:54,250 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-27 23:08:54,254 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-27 23:08:54,255 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-27 23:08:54,255 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-27 23:08:54,255 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-27 23:08:54,255 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-27 23:08:54,255 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-27 23:08:54,255 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-27 23:08:54,256 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-27 23:08:54,258 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-27 23:08:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-27 23:08:54,261 INFO L322 BasicCegarLoop]: Found error trace [2018-01-27 23:08:54,261 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-27 23:08:54,261 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-27 23:08:54,261 INFO L82 PathProgramCache]: Analyzing trace with hash -200712588, now seen corresponding path program 1 times [2018-01-27 23:08:54,262 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-27 23:08:54,262 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-27 23:08:54,264 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,264 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:54,264 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-27 23:08:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-27 23:08:54,321 INFO L389 BasicCegarLoop]: Counterexample might be feasible [2018-01-27 23:08:54,326 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-27 23:08:54,326 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-27 23:08:54,327 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-27 23:08:54,333 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-27 23:08:54,334 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-27 23:08:54,334 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-27 23:08:54,337 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-27 23:08:54,337 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-27 23:08:54,337 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-27 23:08:54,337 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-27 23:08:54,337 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == sumErr0EnsuresViolation======== [2018-01-27 23:08:54,338 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-27 23:08:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-27 23:08:54,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-27 23:08:54,344 INFO L322 BasicCegarLoop]: Found error trace [2018-01-27 23:08:54,345 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-27 23:08:54,345 INFO L371 AbstractCegarLoop]: === Iteration 1 === [sumErr0EnsuresViolation]=== [2018-01-27 23:08:54,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1516194256, now seen corresponding path program 1 times [2018-01-27 23:08:54,345 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-27 23:08:54,345 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-27 23:08:54,346 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,347 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:54,347 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-27 23:08:54,376 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-27 23:08:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-27 23:08:54,429 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-27 23:08:54,430 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-27 23:08:54,431 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-27 23:08:54,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-27 23:08:54,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-27 23:08:54,450 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-01-27 23:08:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-27 23:08:54,482 INFO L93 Difference]: Finished difference Result 90 states and 106 transitions. [2018-01-27 23:08:54,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-27 23:08:54,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-01-27 23:08:54,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-27 23:08:54,501 INFO L225 Difference]: With dead ends: 90 [2018-01-27 23:08:54,501 INFO L226 Difference]: Without dead ends: 0 [2018-01-27 23:08:54,505 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-27 23:08:54,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-27 23:08:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-27 23:08:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-27 23:08:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-27 23:08:54,626 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-01-27 23:08:54,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-27 23:08:54,627 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-27 23:08:54,627 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-27 23:08:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-27 23:08:54,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-27 23:08:54,633 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-27 23:08:54,633 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-27 23:08:54,633 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-27 23:08:54,633 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-27 23:08:54,634 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-27 23:08:54,634 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-27 23:08:54,634 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-27 23:08:54,634 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-27 23:08:54,634 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-27 23:08:54,639 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-01-27 23:08:54,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-27 23:08:54,640 INFO L322 BasicCegarLoop]: Found error trace [2018-01-27 23:08:54,640 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-27 23:08:54,640 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-27 23:08:54,640 INFO L82 PathProgramCache]: Analyzing trace with hash 2002023553, now seen corresponding path program 1 times [2018-01-27 23:08:54,640 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-27 23:08:54,641 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-27 23:08:54,644 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,645 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:54,645 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-27 23:08:54,665 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-27 23:08:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-27 23:08:54,730 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-27 23:08:54,730 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-27 23:08:54,730 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-27 23:08:54,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-27 23:08:54,731 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-27 23:08:54,731 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2018-01-27 23:08:54,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-27 23:08:54,901 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2018-01-27 23:08:54,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-27 23:08:54,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-01-27 23:08:54,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-27 23:08:54,939 INFO L225 Difference]: With dead ends: 92 [2018-01-27 23:08:54,939 INFO L226 Difference]: Without dead ends: 45 [2018-01-27 23:08:54,940 INFO L533 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 [2018-01-27 23:08:54,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-01-27 23:08:54,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-01-27 23:08:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-01-27 23:08:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-01-27 23:08:54,959 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 9 [2018-01-27 23:08:54,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-27 23:08:54,959 INFO L432 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-01-27 23:08:54,960 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-27 23:08:54,960 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-01-27 23:08:54,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-01-27 23:08:54,967 INFO L322 BasicCegarLoop]: Found error trace [2018-01-27 23:08:54,967 INFO L330 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2018-01-27 23:08:54,967 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-27 23:08:54,968 INFO L82 PathProgramCache]: Analyzing trace with hash 728823449, now seen corresponding path program 1 times [2018-01-27 23:08:54,968 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-27 23:08:54,968 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-27 23:08:54,969 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:54,969 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:54,970 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-27 23:08:55,029 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-27 23:08:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-01-27 23:08:55,289 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-27 23:08:55,290 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 [2018-01-27 23:08:55,307 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-27 23:08:55,400 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-27 23:08:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-01-27 23:08:55,614 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-27 23:08:55,615 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2018-01-27 23:08:55,617 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-27 23:08:55,617 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-27 23:08:55,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-27 23:08:55,618 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 6 states. [2018-01-27 23:08:55,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-27 23:08:55,754 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2018-01-27 23:08:55,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-27 23:08:55,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-01-27 23:08:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-27 23:08:55,757 INFO L225 Difference]: With dead ends: 85 [2018-01-27 23:08:55,757 INFO L226 Difference]: Without dead ends: 50 [2018-01-27 23:08:55,758 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-27 23:08:55,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-01-27 23:08:55,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2018-01-27 23:08:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-01-27 23:08:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-01-27 23:08:55,766 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 49 [2018-01-27 23:08:55,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-27 23:08:55,767 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-01-27 23:08:55,767 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-27 23:08:55,767 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-01-27 23:08:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-01-27 23:08:55,769 INFO L322 BasicCegarLoop]: Found error trace [2018-01-27 23:08:55,769 INFO L330 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2018-01-27 23:08:55,770 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation]=== [2018-01-27 23:08:55,770 INFO L82 PathProgramCache]: Analyzing trace with hash 736219359, now seen corresponding path program 1 times [2018-01-27 23:08:55,770 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-27 23:08:55,770 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-27 23:08:55,771 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:55,771 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:55,772 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-27 23:08:55,806 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-27 23:08:56,045 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-01-27 23:08:56,046 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-27 23:08:56,046 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 [2018-01-27 23:08:56,062 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-27 23:08:56,136 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-27 23:08:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-27 23:08:56,416 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-27 23:08:56,416 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2018-01-27 23:08:56,417 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-27 23:08:56,417 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-27 23:08:56,417 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-01-27 23:08:56,418 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 8 states. [2018-01-27 23:08:56,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-27 23:08:56,781 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2018-01-27 23:08:56,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-27 23:08:56,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2018-01-27 23:08:56,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-27 23:08:56,784 INFO L225 Difference]: With dead ends: 92 [2018-01-27 23:08:56,784 INFO L226 Difference]: Without dead ends: 55 [2018-01-27 23:08:56,785 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-01-27 23:08:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-01-27 23:08:56,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2018-01-27 23:08:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-01-27 23:08:56,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-01-27 23:08:56,794 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 64 [2018-01-27 23:08:56,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-27 23:08:56,794 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-01-27 23:08:56,794 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-27 23:08:56,795 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-01-27 23:08:56,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-01-27 23:08:56,797 INFO L322 BasicCegarLoop]: Found error trace [2018-01-27 23:08:56,797 INFO L330 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2018-01-27 23:08:56,797 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation]=== [2018-01-27 23:08:56,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1988422055, now seen corresponding path program 2 times [2018-01-27 23:08:56,798 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-27 23:08:56,798 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-27 23:08:56,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:56,799 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-27 23:08:56,799 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-27 23:08:56,833 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-27 23:08:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2018-01-27 23:08:57,073 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-27 23:08:57,073 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-27 23:08:57,073 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-27 23:08:57,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-27 23:08:57,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-27 23:08:57,074 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 4 states. [2018-01-27 23:08:57,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-27 23:08:57,245 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2018-01-27 23:08:57,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-27 23:08:57,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2018-01-27 23:08:57,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-27 23:08:57,247 INFO L225 Difference]: With dead ends: 83 [2018-01-27 23:08:57,247 INFO L226 Difference]: Without dead ends: 58 [2018-01-27 23:08:57,248 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-27 23:08:57,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-27 23:08:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2018-01-27 23:08:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-27 23:08:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2018-01-27 23:08:57,259 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 79 [2018-01-27 23:08:57,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-27 23:08:57,263 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2018-01-27 23:08:57,263 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-27 23:08:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2018-01-27 23:08:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-01-27 23:08:57,264 INFO L322 BasicCegarLoop]: Found error trace [2018-01-27 23:08:57,265 INFO L330 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-27 23:08:57,265 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation]=== [2018-01-27 23:08:57,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1603927199, now seen corresponding path program 1 times [2018-01-27 23:08:57,265 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-27 23:08:57,265 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-27 23:08:57,266 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:57,267 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-27 23:08:57,267 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-27 23:08:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-27 23:08:57,350 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-27 23:08:57,568 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-01-27 23:08:57,568 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-27 23:08:57,569 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-27 23:08:57,569 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-27 23:08:57,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-27 23:08:57,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-27 23:08:57,570 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 4 states. [2018-01-27 23:08:57,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-27 23:08:57,783 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2018-01-27 23:08:57,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-27 23:08:57,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2018-01-27 23:08:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-27 23:08:57,785 INFO L225 Difference]: With dead ends: 54 [2018-01-27 23:08:57,785 INFO L226 Difference]: Without dead ends: 0 [2018-01-27 23:08:57,785 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-27 23:08:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-27 23:08:57,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-27 23:08:57,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-27 23:08:57,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-27 23:08:57,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2018-01-27 23:08:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-27 23:08:57,787 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-27 23:08:57,787 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-27 23:08:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-27 23:08:57,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-27 23:08:57,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:08:57 BoogieIcfgContainer [2018-01-27 23:08:57,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-27 23:08:57,792 INFO L168 Benchmark]: Toolchain (without parser) took 4728.40 ms. Allocated memory was 308.8 MB in the beginning and 480.8 MB in the end (delta: 172.0 MB). Free memory was 269.7 MB in the beginning and 403.7 MB in the end (delta: -134.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 5.3 GB. [2018-01-27 23:08:57,793 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 308.8 MB. Free memory is still 274.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-27 23:08:57,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.12 ms. Allocated memory is still 308.8 MB. Free memory was 268.7 MB in the beginning and 260.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. [2018-01-27 23:08:57,793 INFO L168 Benchmark]: Boogie Preprocessor took 63.24 ms. Allocated memory is still 308.8 MB. Free memory was 260.6 MB in the beginning and 258.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. [2018-01-27 23:08:57,794 INFO L168 Benchmark]: RCFGBuilder took 537.06 ms. Allocated memory is still 308.8 MB. Free memory was 258.5 MB in the beginning and 241.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 5.3 GB. [2018-01-27 23:08:57,794 INFO L168 Benchmark]: TraceAbstraction took 3842.16 ms. Allocated memory was 308.8 MB in the beginning and 480.8 MB in the end (delta: 172.0 MB). Free memory was 240.5 MB in the beginning and 403.7 MB in the end (delta: -163.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 5.3 GB. [2018-01-27 23:08:57,795 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 308.8 MB. Free memory is still 274.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 271.12 ms. Allocated memory is still 308.8 MB. Free memory was 268.7 MB in the beginning and 260.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 63.24 ms. Allocated memory is still 308.8 MB. Free memory was 260.6 MB in the beginning and 258.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 537.06 ms. Allocated memory is still 308.8 MB. Free memory was 258.5 MB in the beginning and 241.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 3842.16 ms. Allocated memory was 308.8 MB in the beginning and 480.8 MB in the end (delta: 172.0 MB). Free memory was 240.5 MB in the beginning and 403.7 MB in the end (delta: -163.2 MB). Peak memory consumption was 8.8 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 ensures #valid == old(#valid); 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: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L4] int N; VAL [\old(N)=2, N=0] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 4 procedures, 51 locations, 4 error locations. UNSAFE Result, 0.2s 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=51occurred 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, 0.0s DumpTime, 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, ReuseStatistics: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L4] int N; VAL [\old(N)=0, N=0] [L19] N = __VERIFIER_nondet_int() [L20] COND FALSE !(N > 1) VAL [\old(N)=0, N=0] [L42] return 1; VAL [N=0] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 51 locations, 4 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=51occurred 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, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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, ReuseStatistics: No data available - PositiveResult [Line: 6]: 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: sumErr0EnsuresViolation CFG has 4 procedures, 51 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 0.0s DumpTime, 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: 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 4 procedures, 51 locations, 4 error locations. SAFE Result, 3.1s OverallTime, 5 OverallIterations, 9 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 203 SDtfs, 169 SDslu, 273 SDs, 0 SdLazy, 185 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 117 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 392 ConstructedInterpolants, 0 QuantifiedInterpolants, 47546 SizeOfPredicates, 2 NumberOfNonLiveVariables, 328 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 356/398 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: 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/sum_true-unreach-call_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-27_23-08-57-807.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sum_true-unreach-call_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-27_23-08-57-807.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sum_true-unreach-call_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-27_23-08-57-807.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sum_true-unreach-call_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-27_23-08-57-807.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sum_true-unreach-call_true-termination.i_mempurity-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-27_23-08-57-807.csv Received shutdown request...