java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:24:49,090 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:24:49,092 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:24:49,111 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:24:49,111 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:24:49,113 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:24:49,117 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:24:49,119 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:24:49,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:24:49,124 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:24:49,126 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:24:49,127 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:24:49,128 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:24:49,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:24:49,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:24:49,139 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:24:49,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:24:49,143 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:24:49,149 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:24:49,150 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:24:49,151 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:24:49,157 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:24:49,160 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:24:49,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:24:49,168 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:24:49,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:24:49,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:24:49,170 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:24:49,194 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:24:49,195 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:24:49,198 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:24:49,198 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:24:49,198 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:24:49,198 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:24:49,198 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:24:49,199 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:24:49,199 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:24:49,199 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:24:49,199 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:24:49,199 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:24:49,200 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:24:49,200 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:24:49,201 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:24:49,202 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:24:49,202 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:24:49,202 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:24:49,202 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:24:49,203 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:24:49,203 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:24:49,203 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:24:49,203 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:24:49,203 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:24:49,204 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:24:49,204 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:24:49,204 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:24:49,204 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:24:49,204 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:24:49,205 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:24:49,205 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:24:49,205 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:24:49,205 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:24:49,205 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:24:49,258 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:24:49,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:24:49,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:24:49,277 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:24:49,277 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:24:49,278 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label25_false-unreach-call.c [2018-10-24 18:24:49,337 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ec9f30193/10337e6e36554341b9363fdf880a18eb/FLAG9ffa392b6 [2018-10-24 18:24:50,193 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:24:50,194 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label25_false-unreach-call.c [2018-10-24 18:24:50,246 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ec9f30193/10337e6e36554341b9363fdf880a18eb/FLAG9ffa392b6 [2018-10-24 18:24:50,267 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ec9f30193/10337e6e36554341b9363fdf880a18eb [2018-10-24 18:24:50,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:24:50,284 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:24:50,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:24:50,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:24:50,292 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:24:50,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:24:50" (1/1) ... [2018-10-24 18:24:50,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f49102c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:50, skipping insertion in model container [2018-10-24 18:24:50,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:24:50" (1/1) ... [2018-10-24 18:24:50,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:24:50,474 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:24:51,823 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:24:51,828 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:24:52,571 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:24:52,609 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:24:52,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52 WrapperNode [2018-10-24 18:24:52,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:24:52,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:24:52,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:24:52,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:24:52,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:52,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:53,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:24:53,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:24:53,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:24:53,231 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:24:53,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:53,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:53,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:53,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:53,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:53,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:53,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... [2018-10-24 18:24:53,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:24:53,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:24:53,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:24:53,721 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:24:53,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:24:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:24:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:24:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 18:24:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 18:24:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 18:24:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 18:24:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:24:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:24:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:24:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:24:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:24:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:24:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:24:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:25:06,015 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:25:06,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:25:06 BoogieIcfgContainer [2018-10-24 18:25:06,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:25:06,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:25:06,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:25:06,021 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:25:06,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:24:50" (1/3) ... [2018-10-24 18:25:06,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4642291f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:25:06, skipping insertion in model container [2018-10-24 18:25:06,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:52" (2/3) ... [2018-10-24 18:25:06,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4642291f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:25:06, skipping insertion in model container [2018-10-24 18:25:06,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:25:06" (3/3) ... [2018-10-24 18:25:06,025 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label25_false-unreach-call.c [2018-10-24 18:25:06,035 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:25:06,051 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:25:06,069 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:25:06,132 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:25:06,132 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:25:06,132 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:25:06,133 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:25:06,133 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:25:06,133 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:25:06,133 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:25:06,133 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:25:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 18:25:06,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-24 18:25:06,198 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:25:06,199 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:25:06,202 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:25:06,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:25:06,210 INFO L82 PathProgramCache]: Analyzing trace with hash 413005764, now seen corresponding path program 1 times [2018-10-24 18:25:06,212 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:25:06,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:06,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:25:06,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:06,262 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:25:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:25:06,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:25:06,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:25:06,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:25:06,673 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:25:06,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:25:06,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:25:06,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:25:06,700 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-24 18:25:20,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:25:20,737 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-10-24 18:25:20,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:25:20,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-10-24 18:25:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:25:20,796 INFO L225 Difference]: With dead ends: 4063 [2018-10-24 18:25:20,797 INFO L226 Difference]: Without dead ends: 2937 [2018-10-24 18:25:20,814 INFO L605 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 [2018-10-24 18:25:20,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-10-24 18:25:20,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-10-24 18:25:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-10-24 18:25:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-10-24 18:25:20,995 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 30 [2018-10-24 18:25:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:25:20,996 INFO L481 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-10-24 18:25:20,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:25:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-10-24 18:25:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 18:25:21,004 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:25:21,006 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:25:21,007 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:25:21,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:25:21,008 INFO L82 PathProgramCache]: Analyzing trace with hash -749391575, now seen corresponding path program 1 times [2018-10-24 18:25:21,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:25:21,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:21,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:25:21,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:21,010 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:25:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:25:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:25:21,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:25:21,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:25:21,373 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:25:21,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:25:21,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:25:21,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:25:21,376 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-10-24 18:25:37,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:25:37,529 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-10-24 18:25:37,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:25:37,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-24 18:25:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:25:37,569 INFO L225 Difference]: With dead ends: 7277 [2018-10-24 18:25:37,569 INFO L226 Difference]: Without dead ends: 5301 [2018-10-24 18:25:37,581 INFO L605 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 [2018-10-24 18:25:37,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-10-24 18:25:37,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-10-24 18:25:37,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-10-24 18:25:37,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-10-24 18:25:37,737 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 101 [2018-10-24 18:25:37,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:25:37,737 INFO L481 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-10-24 18:25:37,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:25:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-10-24 18:25:37,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-24 18:25:37,746 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:25:37,746 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:25:37,746 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:25:37,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:25:37,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1848560104, now seen corresponding path program 1 times [2018-10-24 18:25:37,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:25:37,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:37,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:25:37,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:37,750 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:25:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:25:37,989 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:25:37,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:25:37,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:25:37,990 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:25:37,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:25:37,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:25:37,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:25:37,992 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-10-24 18:25:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:25:53,707 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-10-24 18:25:53,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:25:53,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-10-24 18:25:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:25:53,754 INFO L225 Difference]: With dead ends: 13914 [2018-10-24 18:25:53,755 INFO L226 Difference]: Without dead ends: 8668 [2018-10-24 18:25:53,776 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:25:53,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-10-24 18:25:53,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-10-24 18:25:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-10-24 18:25:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-10-24 18:25:53,980 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 104 [2018-10-24 18:25:53,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:25:53,981 INFO L481 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-10-24 18:25:53,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:25:53,981 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-10-24 18:25:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 18:25:53,991 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:25:53,992 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:25:53,992 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:25:53,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:25:53,993 INFO L82 PathProgramCache]: Analyzing trace with hash -207674108, now seen corresponding path program 1 times [2018-10-24 18:25:53,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:25:53,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:53,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:25:53,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:25:53,994 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:25:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:25:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:25:54,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:25:54,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:25:54,374 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:25:54,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:25:54,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:25:54,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:25:54,375 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-10-24 18:26:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:26:13,807 INFO L93 Difference]: Finished difference Result 25982 states and 40339 transitions. [2018-10-24 18:26:13,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:26:13,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-10-24 18:26:13,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:26:13,901 INFO L225 Difference]: With dead ends: 25982 [2018-10-24 18:26:13,902 INFO L226 Difference]: Without dead ends: 17383 [2018-10-24 18:26:13,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:26:13,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17383 states. [2018-10-24 18:26:14,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17383 to 17120. [2018-10-24 18:26:14,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17120 states. [2018-10-24 18:26:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17120 states to 17120 states and 24327 transitions. [2018-10-24 18:26:14,324 INFO L78 Accepts]: Start accepts. Automaton has 17120 states and 24327 transitions. Word has length 114 [2018-10-24 18:26:14,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:26:14,324 INFO L481 AbstractCegarLoop]: Abstraction has 17120 states and 24327 transitions. [2018-10-24 18:26:14,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:26:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 17120 states and 24327 transitions. [2018-10-24 18:26:14,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 18:26:14,327 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:26:14,328 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:26:14,328 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:26:14,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:26:14,328 INFO L82 PathProgramCache]: Analyzing trace with hash 158864184, now seen corresponding path program 1 times [2018-10-24 18:26:14,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:26:14,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:26:14,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:26:14,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:26:14,330 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:26:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:26:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 18:26:14,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:26:14,610 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:26:14,611 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2018-10-24 18:26:14,614 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2767], [2769], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 18:26:14,688 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:26:14,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:26:48,751 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:26:48,753 INFO L272 AbstractInterpreter]: Visited 108 different actions 720 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:26:48,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:26:48,770 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:26:51,471 INFO L232 lantSequenceWeakener]: Weakened 21 states. On average, predicates are now at 75.73% of their original sizes. [2018-10-24 18:26:51,472 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:26:56,858 INFO L413 sIntCurrentIteration]: We have 130 unified AI predicates [2018-10-24 18:26:56,858 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:26:56,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:26:56,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2018-10-24 18:26:56,860 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:26:56,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 18:26:56,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 18:26:56,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-24 18:26:56,862 INFO L87 Difference]: Start difference. First operand 17120 states and 24327 transitions. Second operand 14 states. [2018-10-24 18:27:24,968 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 18:28:43,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 18:28:43,616 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:28:43,624 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:28:43,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:28:43 BoogieIcfgContainer [2018-10-24 18:28:43,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:28:43,625 INFO L168 Benchmark]: Toolchain (without parser) took 233343.15 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 992.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:28:43,627 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. [2018-10-24 18:28:43,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2325.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:28:43,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 618.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 811.1 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:28:43,630 INFO L168 Benchmark]: Boogie Preprocessor took 489.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:28:43,630 INFO L168 Benchmark]: RCFGBuilder took 12296.02 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 188.2 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 15.2 MB). Peak memory consumption was 662.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:28:43,632 INFO L168 Benchmark]: TraceAbstraction took 217607.06 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.1 GB in the end (delta: -931.4 MB). Peak memory consumption was 779.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:28:43,637 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 2325.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 618.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 811.1 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 489.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12296.02 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 188.2 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 15.2 MB). Peak memory consumption was 662.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217607.06 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 3.1 GB in the end (delta: -931.4 MB). Peak memory consumption was 779.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 81). Cancelled while BasicCegarLoop was constructing difference of abstraction (17120states) and FLOYD_HOARE automaton (currently 15 states, 14 states before enhancement),while ReachableStatesComputation was computing reachable states (1393 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 217.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 172.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1993 SDtfs, 14955 SDslu, 2264 SDs, 0 SdLazy, 24276 SolverSat, 7701 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 106.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 170 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17120occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 34.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9931479289940829 AbsIntWeakeningRatio, 0.16153846153846155 AbsIntAvgWeakeningVarsNumRemoved, 45.746153846153845 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 1330 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 200388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 73/92 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown