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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:35:38,140 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:35:38,143 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:35:38,158 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:35:38,159 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:35:38,161 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:35:38,162 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:35:38,164 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:35:38,167 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:35:38,168 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:35:38,173 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:35:38,173 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:35:38,174 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:35:38,179 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:35:38,181 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:35:38,182 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:35:38,183 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:35:38,185 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:35:38,186 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:35:38,188 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:35:38,189 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:35:38,190 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:35:38,192 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 12:35:38,199 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:35:38,199 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:35:38,200 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:35:38,200 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:35:38,201 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 12:35:38,216 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:35:38,217 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:35:38,217 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:35:38,218 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:35:38,218 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:35:38,218 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:35:38,218 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:35:38,219 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:35:38,219 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:35:38,219 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:35:38,219 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:35:38,219 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:35:38,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:35:38,220 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:35:38,221 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:35:38,221 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:35:38,221 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:35:38,221 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:35:38,221 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:35:38,222 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:35:38,222 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:35:38,222 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:35:38,222 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:35:38,222 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:35:38,223 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:35:38,223 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:35:38,223 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:35:38,223 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:35:38,224 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:35:38,224 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:35:38,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:35:38,224 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:35:38,224 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:35:38,225 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:35:38,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:35:38,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:35:38,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:35:38,313 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:35:38,313 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:35:38,314 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-09-18 12:35:38,679 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137298084/308941400e964e3eb189d348f4c0b828/FLAG30345949f [2018-09-18 12:35:39,302 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:35:39,303 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-09-18 12:35:39,353 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137298084/308941400e964e3eb189d348f4c0b828/FLAG30345949f [2018-09-18 12:35:39,376 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137298084/308941400e964e3eb189d348f4c0b828 [2018-09-18 12:35:39,390 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:35:39,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:35:39,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:35:39,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:35:39,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:35:39,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:35:39" (1/1) ... [2018-09-18 12:35:39,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77eb0580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:39, skipping insertion in model container [2018-09-18 12:35:39,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:35:39" (1/1) ... [2018-09-18 12:35:39,424 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:35:41,385 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:35:41,406 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:35:42,580 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:35:43,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43 WrapperNode [2018-09-18 12:35:43,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:35:43,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:35:43,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:35:43,247 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:35:43,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:43,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:43,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:35:43,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:35:43,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:35:43,575 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:35:44,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:44,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:44,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:44,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:45,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:45,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:45,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (1/1) ... [2018-09-18 12:35:45,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:35:45,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:35:45,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:35:45,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:35:45,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (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 [2018-09-18 12:35:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:35:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:35:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-18 12:35:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-18 12:35:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-18 12:35:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-18 12:35:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 12:35:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 12:35:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:35:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:35:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:35:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:35:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:35:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:35:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:35:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:35:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:35:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:36:03,225 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:36:03,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:36:03 BoogieIcfgContainer [2018-09-18 12:36:03,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:36:03,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:36:03,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:36:03,230 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:36:03,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:35:39" (1/3) ... [2018-09-18 12:36:03,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68160085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:36:03, skipping insertion in model container [2018-09-18 12:36:03,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:43" (2/3) ... [2018-09-18 12:36:03,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68160085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:36:03, skipping insertion in model container [2018-09-18 12:36:03,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:36:03" (3/3) ... [2018-09-18 12:36:03,233 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label45_true-unreach-call.c [2018-09-18 12:36:03,243 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:36:03,257 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:36:03,328 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:36:03,329 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:36:03,329 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:36:03,329 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:36:03,329 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:36:03,329 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:36:03,330 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:36:03,330 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:36:03,330 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:36:03,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-18 12:36:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-18 12:36:03,401 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:36:03,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:36:03,402 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:36:03,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1607603996, now seen corresponding path program 1 times [2018-09-18 12:36:03,409 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:36:03,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:36:03,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:36:03,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:36:03,461 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:36:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:36:03,872 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-18 12:36:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:36:03,913 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:36:03,913 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:36:03,914 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:36:03,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:36:03,936 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:36:03,937 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:36:03,940 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-09-18 12:36:29,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:36:29,681 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-09-18 12:36:29,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:36:29,688 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-09-18 12:36:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:36:29,741 INFO L225 Difference]: With dead ends: 6465 [2018-09-18 12:36:29,742 INFO L226 Difference]: Without dead ends: 4681 [2018-09-18 12:36:29,758 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:36:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-09-18 12:36:29,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-09-18 12:36:29,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-09-18 12:36:29,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-09-18 12:36:30,001 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 54 [2018-09-18 12:36:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:36:30,003 INFO L480 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-09-18 12:36:30,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:36:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-09-18 12:36:30,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-18 12:36:30,022 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:36:30,024 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:36:30,025 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:36:30,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1301823847, now seen corresponding path program 1 times [2018-09-18 12:36:30,025 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:36:30,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:36:30,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:36:30,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:36:30,027 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:36:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:36:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:36:30,602 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:36:30,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:36:30,603 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:36:30,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:36:30,605 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:36:30,605 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:36:30,606 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-09-18 12:37:00,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:37:00,154 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-09-18 12:37:00,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:37:00,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-09-18 12:37:00,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:37:00,205 INFO L225 Difference]: With dead ends: 12097 [2018-09-18 12:37:00,205 INFO L226 Difference]: Without dead ends: 8903 [2018-09-18 12:37:00,219 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:37:00,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-09-18 12:37:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-09-18 12:37:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-09-18 12:37:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-09-18 12:37:00,432 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 126 [2018-09-18 12:37:00,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:37:00,433 INFO L480 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-09-18 12:37:00,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:37:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-09-18 12:37:00,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-18 12:37:00,437 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:37:00,437 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:37:00,437 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:37:00,438 INFO L82 PathProgramCache]: Analyzing trace with hash -13978768, now seen corresponding path program 1 times [2018-09-18 12:37:00,438 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:37:00,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:00,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:37:00,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:00,439 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:37:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:37:00,738 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:37:00,738 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:37:00,739 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:37:00,739 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:37:00,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:37:00,740 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:37:00,740 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:37:00,740 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-09-18 12:37:26,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:37:26,266 INFO L93 Difference]: Finished difference Result 29431 states and 43425 transitions. [2018-09-18 12:37:26,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:37:26,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-09-18 12:37:26,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:37:26,376 INFO L225 Difference]: With dead ends: 29431 [2018-09-18 12:37:26,377 INFO L226 Difference]: Without dead ends: 20591 [2018-09-18 12:37:26,414 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:37:26,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20591 states. [2018-09-18 12:37:26,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20591 to 20435. [2018-09-18 12:37:26,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20435 states. [2018-09-18 12:37:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20435 states to 20435 states and 28676 transitions. [2018-09-18 12:37:26,912 INFO L78 Accepts]: Start accepts. Automaton has 20435 states and 28676 transitions. Word has length 128 [2018-09-18 12:37:26,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:37:26,913 INFO L480 AbstractCegarLoop]: Abstraction has 20435 states and 28676 transitions. [2018-09-18 12:37:26,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:37:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 20435 states and 28676 transitions. [2018-09-18 12:37:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-18 12:37:26,921 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:37:26,921 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:37:26,922 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:37:26,923 INFO L82 PathProgramCache]: Analyzing trace with hash 721795799, now seen corresponding path program 1 times [2018-09-18 12:37:26,923 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:37:26,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:26,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:37:26,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:26,924 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:37:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:37:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:37:27,232 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:37:27,232 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:37:27,233 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:37:27,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:37:27,233 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:37:27,234 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:37:27,234 INFO L87 Difference]: Start difference. First operand 20435 states and 28676 transitions. Second operand 6 states. [2018-09-18 12:37:55,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:37:55,142 INFO L93 Difference]: Finished difference Result 62260 states and 89704 transitions. [2018-09-18 12:37:55,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 12:37:55,143 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-09-18 12:37:55,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:37:55,293 INFO L225 Difference]: With dead ends: 62260 [2018-09-18 12:37:55,294 INFO L226 Difference]: Without dead ends: 41831 [2018-09-18 12:37:55,345 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:37:55,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41831 states. [2018-09-18 12:37:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41831 to 41494. [2018-09-18 12:37:56,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41494 states. [2018-09-18 12:37:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41494 states to 41494 states and 57737 transitions. [2018-09-18 12:37:56,237 INFO L78 Accepts]: Start accepts. Automaton has 41494 states and 57737 transitions. Word has length 136 [2018-09-18 12:37:56,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:37:56,237 INFO L480 AbstractCegarLoop]: Abstraction has 41494 states and 57737 transitions. [2018-09-18 12:37:56,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:37:56,238 INFO L276 IsEmpty]: Start isEmpty. Operand 41494 states and 57737 transitions. [2018-09-18 12:37:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-18 12:37:56,241 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:37:56,241 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:37:56,241 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:37:56,242 INFO L82 PathProgramCache]: Analyzing trace with hash -179031743, now seen corresponding path program 1 times [2018-09-18 12:37:56,242 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:37:56,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:56,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:37:56,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:56,243 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:37:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:37:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:37:56,572 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:37:56,573 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:37:56,573 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:37:56,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:37:56,573 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:37:56,574 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:37:56,574 INFO L87 Difference]: Start difference. First operand 41494 states and 57737 transitions. Second operand 5 states. [2018-09-18 12:38:26,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:38:26,893 INFO L93 Difference]: Finished difference Result 125829 states and 180377 transitions. [2018-09-18 12:38:26,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:38:26,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2018-09-18 12:38:26,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:38:27,166 INFO L225 Difference]: With dead ends: 125829 [2018-09-18 12:38:27,167 INFO L226 Difference]: Without dead ends: 84341 [2018-09-18 12:38:27,263 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:38:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84341 states. [2018-09-18 12:38:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84341 to 83141. [2018-09-18 12:38:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83141 states. [2018-09-18 12:38:28,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83141 states to 83141 states and 107155 transitions. [2018-09-18 12:38:28,704 INFO L78 Accepts]: Start accepts. Automaton has 83141 states and 107155 transitions. Word has length 156 [2018-09-18 12:38:28,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:38:28,704 INFO L480 AbstractCegarLoop]: Abstraction has 83141 states and 107155 transitions. [2018-09-18 12:38:28,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:38:28,705 INFO L276 IsEmpty]: Start isEmpty. Operand 83141 states and 107155 transitions. [2018-09-18 12:38:28,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-18 12:38:28,710 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:38:28,711 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:38:28,711 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:38:28,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1693657294, now seen corresponding path program 1 times [2018-09-18 12:38:28,712 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:38:28,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:38:28,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:38:28,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:38:28,713 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:38:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:38:29,044 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:38:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:38:29,133 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:38:29,134 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:38:29,134 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:38:29,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:38:29,134 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:38:29,134 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:38:29,135 INFO L87 Difference]: Start difference. First operand 83141 states and 107155 transitions. Second operand 6 states. [2018-09-18 12:38:46,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:38:46,905 INFO L93 Difference]: Finished difference Result 188087 states and 253002 transitions. [2018-09-18 12:38:46,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:38:46,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-09-18 12:38:46,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:38:47,223 INFO L225 Difference]: With dead ends: 188087 [2018-09-18 12:38:47,224 INFO L226 Difference]: Without dead ends: 104952 [2018-09-18 12:38:47,360 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:38:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104952 states. [2018-09-18 12:38:48,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104952 to 104189. [2018-09-18 12:38:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104189 states. [2018-09-18 12:38:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104189 states to 104189 states and 134663 transitions. [2018-09-18 12:38:49,085 INFO L78 Accepts]: Start accepts. Automaton has 104189 states and 134663 transitions. Word has length 219 [2018-09-18 12:38:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:38:49,085 INFO L480 AbstractCegarLoop]: Abstraction has 104189 states and 134663 transitions. [2018-09-18 12:38:49,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:38:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 104189 states and 134663 transitions. [2018-09-18 12:38:49,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-09-18 12:38:49,101 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:38:49,102 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:38:49,102 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:38:49,102 INFO L82 PathProgramCache]: Analyzing trace with hash -2000312291, now seen corresponding path program 1 times [2018-09-18 12:38:49,103 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:38:49,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:38:49,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:38:49,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:38:49,104 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:38:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:38:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:38:50,337 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:38:50,337 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:38:50,337 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:38:50,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:38:50,339 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:38:50,339 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:38:50,339 INFO L87 Difference]: Start difference. First operand 104189 states and 134663 transitions. Second operand 4 states. [2018-09-18 12:39:12,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:39:12,148 INFO L93 Difference]: Finished difference Result 296417 states and 401285 transitions. [2018-09-18 12:39:12,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:39:12,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 541 [2018-09-18 12:39:12,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:39:12,712 INFO L225 Difference]: With dead ends: 296417 [2018-09-18 12:39:12,712 INFO L226 Difference]: Without dead ends: 192234 [2018-09-18 12:39:12,901 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:39:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192234 states. [2018-09-18 12:39:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192234 to 191936. [2018-09-18 12:39:15,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191936 states. [2018-09-18 12:39:15,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191936 states to 191936 states and 249922 transitions. [2018-09-18 12:39:15,962 INFO L78 Accepts]: Start accepts. Automaton has 191936 states and 249922 transitions. Word has length 541 [2018-09-18 12:39:15,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:39:15,963 INFO L480 AbstractCegarLoop]: Abstraction has 191936 states and 249922 transitions. [2018-09-18 12:39:15,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:39:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand 191936 states and 249922 transitions. [2018-09-18 12:39:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2018-09-18 12:39:15,993 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:39:15,994 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:39:15,994 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:39:15,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1092730453, now seen corresponding path program 1 times [2018-09-18 12:39:15,994 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:39:15,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:39:15,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:39:15,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:39:15,996 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:39:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:39:16,717 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:39:16,718 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:39:16,718 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:39:16,718 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:39:16,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:39:16,719 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:39:16,719 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:39:16,720 INFO L87 Difference]: Start difference. First operand 191936 states and 249922 transitions. Second operand 4 states. [2018-09-18 12:39:36,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:39:36,593 INFO L93 Difference]: Finished difference Result 440357 states and 584816 transitions. [2018-09-18 12:39:36,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:39:36,594 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 648 [2018-09-18 12:39:36,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2018-09-18 12:39:37,180 INFO L225 Difference]: With dead ends: 440357 [2018-09-18 12:39:37,181 INFO L226 Difference]: Without dead ends: 248427 [2018-09-18 12:39:37,417 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:39:37,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248427 states. [2018-09-18 12:39:37,570 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:39:37,573 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:39:37,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:39:37 BoogieIcfgContainer [2018-09-18 12:39:37,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:39:37,574 INFO L168 Benchmark]: Toolchain (without parser) took 238183.57 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -547.4 kB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-18 12:39:37,576 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-18 12:39:37,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3849.99 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 201.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -119.7 MB). Peak memory consumption was 492.9 MB. Max. memory is 7.1 GB. [2018-09-18 12:39:37,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 328.33 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2018-09-18 12:39:37,578 INFO L168 Benchmark]: Boogie Preprocessor took 1862.71 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 862.5 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -867.6 MB). Peak memory consumption was 125.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:39:37,579 INFO L168 Benchmark]: RCFGBuilder took 17787.52 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 261.1 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 137.8 MB). Peak memory consumption was 999.1 MB. Max. memory is 7.1 GB. [2018-09-18 12:39:37,580 INFO L168 Benchmark]: TraceAbstraction took 214347.60 ms. Allocated memory was 2.9 GB in the beginning and 3.4 GB in the end (delta: 496.0 MB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 784.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-18 12:39:37,585 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 3849.99 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 201.3 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -119.7 MB). Peak memory consumption was 492.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 328.33 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1862.71 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 862.5 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -867.6 MB). Peak memory consumption was 125.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17787.52 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 261.1 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 137.8 MB). Peak memory consumption was 999.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214347.60 ms. Allocated memory was 2.9 GB in the beginning and 3.4 GB in the end (delta: 496.0 MB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 784.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 214.2s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 201.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7524 SDtfs, 49346 SDslu, 5478 SDs, 0 SdLazy, 78319 SolverSat, 21294 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 167.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191936occurred in iteration=7, 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: 8.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 4292 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2008 NumberOfCodeBlocks, 2008 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2000 ConstructedInterpolants, 0 QuantifiedInterpolants, 1429224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 329/329 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-39-37-604.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-39-37-604.csv Completed graceful shutdown