java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0930_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:33:00,027 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:33:00,033 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:33:00,054 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:33:00,055 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:33:00,056 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:33:00,058 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:33:00,061 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:33:00,063 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:33:00,066 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:33:00,067 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:33:00,067 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:33:00,068 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:33:00,069 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:33:00,070 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:33:00,071 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:33:00,072 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:33:00,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:33:00,076 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:33:00,077 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:33:00,078 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:33:00,080 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:33:00,083 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:33:00,083 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:33:00,083 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:33:00,084 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:33:00,086 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:33:00,087 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:33:00,087 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:33:00,089 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:33:00,089 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:33:00,093 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:33:00,094 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:33:00,094 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:33:00,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:33:00,098 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:33:00,098 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 16:33:00,117 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:33:00,117 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:33:00,118 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:33:00,118 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:33:00,119 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:33:00,119 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:33:00,119 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:33:00,120 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:33:00,120 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:33:00,120 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:33:00,120 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:33:00,120 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:33:00,121 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:33:00,121 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:33:00,121 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:33:00,121 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:33:00,121 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:33:00,122 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:33:00,122 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:33:00,122 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:33:00,122 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:33:00,123 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:33:00,123 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:33:00,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:33:00,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:33:00,123 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:33:00,124 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:33:00,124 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:33:00,124 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:33:00,124 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:33:00,124 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:33:00,125 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:33:00,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:33:00,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:33:00,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:33:00,218 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:33:00,219 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:33:00,220 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-09-19 16:33:00,586 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ee08c4d/30d27c3ab70647db9856729f6508b920/FLAGedbbb9666 [2018-09-19 16:33:00,804 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:33:00,805 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-09-19 16:33:00,814 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ee08c4d/30d27c3ab70647db9856729f6508b920/FLAGedbbb9666 [2018-09-19 16:33:00,830 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ee08c4d/30d27c3ab70647db9856729f6508b920 [2018-09-19 16:33:00,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:33:00,843 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:33:00,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:33:00,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:33:00,851 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:33:00,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:33:00" (1/1) ... [2018-09-19 16:33:00,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10732428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:00, skipping insertion in model container [2018-09-19 16:33:00,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:33:00" (1/1) ... [2018-09-19 16:33:00,868 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:33:01,122 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:33:01,152 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:33:01,227 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:33:01,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01 WrapperNode [2018-09-19 16:33:01,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:33:01,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:33:01,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:33:01,310 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:33:01,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (1/1) ... [2018-09-19 16:33:01,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (1/1) ... [2018-09-19 16:33:01,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (1/1) ... [2018-09-19 16:33:01,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (1/1) ... [2018-09-19 16:33:01,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (1/1) ... [2018-09-19 16:33:01,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (1/1) ... [2018-09-19 16:33:01,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (1/1) ... [2018-09-19 16:33:01,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:33:01,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:33:01,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:33:01,418 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:33:01,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:33:01,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:33:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:33:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-19 16:33:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-19 16:33:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:33:01,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:33:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 16:33:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-19 16:33:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:33:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-19 16:33:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:33:01,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:33:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:33:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-19 16:33:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-19 16:33:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:33:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:33:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:33:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-19 16:33:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:33:04,466 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:04,480 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:05,306 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:05,323 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:17,240 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:17,258 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:33:17,278 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:33:17,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:33:17 BoogieIcfgContainer [2018-09-19 16:33:17,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:33:17,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:33:17,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:33:17,284 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:33:17,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:33:00" (1/3) ... [2018-09-19 16:33:17,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba888e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:33:17, skipping insertion in model container [2018-09-19 16:33:17,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:33:01" (2/3) ... [2018-09-19 16:33:17,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba888e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:33:17, skipping insertion in model container [2018-09-19 16:33:17,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:33:17" (3/3) ... [2018-09-19 16:33:17,288 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930_true-unreach-call.c [2018-09-19 16:33:17,299 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:33:17,308 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:33:17,362 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:33:17,363 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:33:17,363 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:33:17,363 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:33:17,363 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:33:17,364 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:33:17,364 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:33:17,364 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:33:17,364 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:33:17,386 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-09-19 16:33:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-19 16:33:17,394 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:17,395 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:33:17,398 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:17,404 INFO L82 PathProgramCache]: Analyzing trace with hash 2121222115, now seen corresponding path program 1 times [2018-09-19 16:33:17,410 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:17,410 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 16:33:17,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:17,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:33:17,739 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:17,758 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:17,758 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:33:17,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:33:17,778 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:33:17,779 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:33:17,782 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 2 states. [2018-09-19 16:33:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:17,816 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2018-09-19 16:33:17,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:33:17,818 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-19 16:33:17,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:17,830 INFO L225 Difference]: With dead ends: 150 [2018-09-19 16:33:17,831 INFO L226 Difference]: Without dead ends: 75 [2018-09-19 16:33:17,835 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:33:17,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-19 16:33:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-09-19 16:33:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-09-19 16:33:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2018-09-19 16:33:17,882 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 17 [2018-09-19 16:33:17,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:17,883 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2018-09-19 16:33:17,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:33:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2018-09-19 16:33:17,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-19 16:33:17,885 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:17,885 INFO L376 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] [2018-09-19 16:33:17,885 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:17,886 INFO L82 PathProgramCache]: Analyzing trace with hash 72460157, now seen corresponding path program 1 times [2018-09-19 16:33:17,886 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:17,887 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-19 16:33:17,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 16:33:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:18,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:18,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:33:18,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:33:18,377 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:18,384 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:18,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:18,438 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:33:18,488 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:33:18,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:33:18,508 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:18,535 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:18,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:18,545 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:33:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:33:18,787 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:18,806 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:18,806 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:33:18,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:33:18,809 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:33:18,809 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:33:18,809 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand 8 states. [2018-09-19 16:33:19,153 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-19 16:33:24,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:24,202 INFO L93 Difference]: Finished difference Result 106 states and 117 transitions. [2018-09-19 16:33:24,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:33:24,203 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-09-19 16:33:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:24,207 INFO L225 Difference]: With dead ends: 106 [2018-09-19 16:33:24,207 INFO L226 Difference]: Without dead ends: 83 [2018-09-19 16:33:24,209 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:33:24,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-09-19 16:33:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2018-09-19 16:33:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-09-19 16:33:24,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2018-09-19 16:33:24,223 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 26 [2018-09-19 16:33:24,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:24,224 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2018-09-19 16:33:24,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:33:24,224 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2018-09-19 16:33:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 16:33:24,225 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:24,225 INFO L376 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] [2018-09-19 16:33:24,226 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:24,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1770515613, now seen corresponding path program 1 times [2018-09-19 16:33:24,227 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:24,227 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 16:33:24,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:24,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:24,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:33:24,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:33:24,635 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:24,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:24,688 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:24,689 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:33:24,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:33:24,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:33:24,721 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:24,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:24,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:24,729 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:33:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:33:24,903 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:24,924 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:24,925 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:33:24,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:33:24,926 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:33:24,926 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:33:24,927 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 8 states. [2018-09-19 16:33:28,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:28,778 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2018-09-19 16:33:28,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:33:28,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-09-19 16:33:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:28,781 INFO L225 Difference]: With dead ends: 106 [2018-09-19 16:33:28,781 INFO L226 Difference]: Without dead ends: 83 [2018-09-19 16:33:28,782 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:33:28,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-09-19 16:33:28,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2018-09-19 16:33:28,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-09-19 16:33:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2018-09-19 16:33:28,792 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 27 [2018-09-19 16:33:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:28,793 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2018-09-19 16:33:28,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:33:28,793 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2018-09-19 16:33:28,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-19 16:33:28,794 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:28,794 INFO L376 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] [2018-09-19 16:33:28,794 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:28,795 INFO L82 PathProgramCache]: Analyzing trace with hash 2125674625, now seen corresponding path program 1 times [2018-09-19 16:33:28,795 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:28,795 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-19 16:33:28,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:28,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:28,924 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:33:28,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:33:28,938 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:28,943 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:28,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:28,956 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:33:28,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:33:28,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:33:28,981 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:28,983 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:28,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:28,988 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:33:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:33:29,076 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:29,086 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:29,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:33:29,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:33:29,087 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:33:29,087 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:33:29,088 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand 8 states. [2018-09-19 16:33:29,837 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-19 16:33:32,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:32,754 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2018-09-19 16:33:32,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:33:32,757 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-09-19 16:33:32,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:32,759 INFO L225 Difference]: With dead ends: 104 [2018-09-19 16:33:32,761 INFO L226 Difference]: Without dead ends: 81 [2018-09-19 16:33:32,762 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:33:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-19 16:33:32,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2018-09-19 16:33:32,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-09-19 16:33:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2018-09-19 16:33:32,770 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 28 [2018-09-19 16:33:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:32,771 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2018-09-19 16:33:32,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:33:32,771 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2018-09-19 16:33:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-19 16:33:32,773 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:32,773 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:33:32,773 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:32,774 INFO L82 PathProgramCache]: Analyzing trace with hash 2040770911, now seen corresponding path program 1 times [2018-09-19 16:33:32,774 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:32,775 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-19 16:33:32,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:33,895 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:33,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:33:33,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:33:33,930 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:33,938 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:33,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:33,950 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:33:33,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:33:33,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:33:33,982 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:33,985 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:33,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:33,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:33:34,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:33:34,143 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:33:34,171 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:33:34,171 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:33:34,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:33:34,172 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:33:34,172 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:33:34,172 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand 9 states. [2018-09-19 16:33:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:33:38,337 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2018-09-19 16:33:38,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:33:38,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2018-09-19 16:33:38,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:33:38,341 INFO L225 Difference]: With dead ends: 119 [2018-09-19 16:33:38,341 INFO L226 Difference]: Without dead ends: 93 [2018-09-19 16:33:38,342 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-09-19 16:33:38,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-09-19 16:33:38,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 88. [2018-09-19 16:33:38,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-09-19 16:33:38,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2018-09-19 16:33:38,352 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 44 [2018-09-19 16:33:38,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:33:38,352 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2018-09-19 16:33:38,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:33:38,352 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2018-09-19 16:33:38,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-19 16:33:38,354 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:33:38,354 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:33:38,354 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:33:38,355 INFO L82 PathProgramCache]: Analyzing trace with hash -66468686, now seen corresponding path program 1 times [2018-09-19 16:33:38,355 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:33:38,355 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-19 16:33:38,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:33:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:33:38,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:33:38,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:33:38,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:33:38,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:38,758 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:38,781 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:38,781 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:27 [2018-09-19 16:33:38,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:33:38,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:33:38,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:38,863 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:38,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:38,875 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:15 [2018-09-19 16:33:39,085 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 20 [2018-09-19 16:33:39,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-09-19 16:33:39,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:39,097 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:39,118 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:33:39,119 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:34 [2018-09-19 16:33:39,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-09-19 16:33:39,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 45 [2018-09-19 16:33:39,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:33:39,240 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:33:39,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:33:39,261 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:55, output treesize:60 [2018-09-19 16:33:51,044 WARN L178 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 34 [2018-09-19 16:34:18,122 WARN L178 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-19 16:34:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:34:18,173 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:34:18,189 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:34:18,190 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 16:34:18,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 16:34:18,190 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 16:34:18,191 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=134, Unknown=12, NotChecked=0, Total=182 [2018-09-19 16:34:18,191 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand 14 states. [2018-09-19 16:36:19,373 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-19 16:36:31,816 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-09-19 16:37:18,550 WARN L178 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 46 Received shutdown request... [2018-09-19 16:37:53,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 16:37:53,290 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 16:37:53,297 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 16:37:53,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:37:53 BoogieIcfgContainer [2018-09-19 16:37:53,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:37:53,299 INFO L168 Benchmark]: Toolchain (without parser) took 292458.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.8 MB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -318.7 MB). Peak memory consumption was 443.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:37:53,300 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:37:53,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 16:37:53,301 INFO L168 Benchmark]: Boogie Preprocessor took 107.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:37:53,301 INFO L168 Benchmark]: RCFGBuilder took 15861.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -779.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:37:53,302 INFO L168 Benchmark]: TraceAbstraction took 276017.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 450.4 MB). Peak memory consumption was 450.4 MB. Max. memory is 7.1 GB. [2018-09-19 16:37:53,306 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 465.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 15861.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -779.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 276017.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 450.4 MB). Peak memory consumption was 450.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 121). Cancelled while BasicCegarLoop was constructing difference of abstraction (88states) and FLOYD_HOARE automaton (currently 19 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (73 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. TIMEOUT Result, 275.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 232.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 417 SDtfs, 255 SDslu, 1881 SDs, 0 SdLazy, 616 SolverSat, 31 SolverUnsat, 61 SolverUnknown, 0 SolverNotchecked, 146.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 95.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 41.0s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 38 QuantifiedInterpolants, 81627 SizeOfPredicates, 43 NumberOfNonLiveVariables, 582 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown