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/Problem17_label37_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:53:29,092 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:53:29,096 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:53:29,110 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:53:29,111 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:53:29,112 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:53:29,113 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:53:29,115 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:53:29,116 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:53:29,118 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:53:29,121 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:53:29,121 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:53:29,122 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:53:29,125 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:53:29,131 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:53:29,132 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:53:29,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:53:29,138 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:53:29,142 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:53:29,144 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:53:29,147 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:53:29,149 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:53:29,151 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:53:29,151 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:53:29,152 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:53:29,153 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:53:29,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:53:29,155 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:53:29,160 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:53:29,162 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:53:29,163 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:53:29,164 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:53:29,165 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:53:29,166 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:53:29,167 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:53:29,168 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:53:29,168 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 18:53:29,199 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:53:29,199 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:53:29,200 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:53:29,200 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:53:29,200 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:53:29,201 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:53:29,201 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:53:29,201 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:53:29,202 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:53:29,202 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:53:29,202 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:53:29,202 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:53:29,203 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:53:29,203 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:53:29,203 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:53:29,203 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:53:29,204 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:53:29,205 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:53:29,205 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:53:29,205 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:53:29,206 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:53:29,206 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:53:29,206 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:53:29,206 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:53:29,206 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:53:29,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:53:29,207 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:53:29,207 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:53:29,207 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:53:29,208 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:53:29,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:53:29,208 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:53:29,208 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:53:29,208 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:53:29,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:53:29,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:53:29,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:53:29,296 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:53:29,296 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:53:29,297 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c [2018-10-24 18:53:29,367 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc88d5ecc/e93f7c5084774503ad9a3f91e204c079/FLAG93dccc673 [2018-10-24 18:53:30,080 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:53:30,081 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c [2018-10-24 18:53:30,109 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc88d5ecc/e93f7c5084774503ad9a3f91e204c079/FLAG93dccc673 [2018-10-24 18:53:30,126 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc88d5ecc/e93f7c5084774503ad9a3f91e204c079 [2018-10-24 18:53:30,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:53:30,143 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:53:30,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:53:30,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:53:30,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:53:30,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:53:30" (1/1) ... [2018-10-24 18:53:30,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7670273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:30, skipping insertion in model container [2018-10-24 18:53:30,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:53:30" (1/1) ... [2018-10-24 18:53:30,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:53:30,284 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:53:31,556 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:53:31,561 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:53:31,942 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:53:31,968 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:53:31,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31 WrapperNode [2018-10-24 18:53:31,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:53:31,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:53:31,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:53:31,970 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:53:31,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:53:32,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:53:32,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:53:32,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:53:32,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (1/1) ... [2018-10-24 18:53:32,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:53:32,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:53:32,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:53:32,748 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:53:32,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (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 18:53:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:53:32,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:53:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:53:32,823 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:53:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:53:32,824 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:53:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:53:32,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:53:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:53:32,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:53:48,498 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:53:48,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:53:48 BoogieIcfgContainer [2018-10-24 18:53:48,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:53:48,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:53:48,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:53:48,506 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:53:48,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:53:30" (1/3) ... [2018-10-24 18:53:48,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34780d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:53:48, skipping insertion in model container [2018-10-24 18:53:48,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:31" (2/3) ... [2018-10-24 18:53:48,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34780d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:53:48, skipping insertion in model container [2018-10-24 18:53:48,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:53:48" (3/3) ... [2018-10-24 18:53:48,512 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label37_false-unreach-call.c [2018-10-24 18:53:48,523 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:53:48,536 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:53:48,559 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:53:48,616 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:53:48,617 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:53:48,617 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:53:48,617 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:53:48,617 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:53:48,617 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:53:48,618 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:53:48,618 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:53:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 18:53:48,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-24 18:53:48,688 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:48,690 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] [2018-10-24 18:53:48,693 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:48,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:48,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1359404802, now seen corresponding path program 1 times [2018-10-24 18:53:48,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:48,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:48,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:48,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:48,781 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:49,225 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 18:53:49,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:53:49,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:53:49,229 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:53:49,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:53:49,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:53:49,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:53:49,256 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 18:54:02,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:54:02,059 INFO L93 Difference]: Finished difference Result 2137 states and 3966 transitions. [2018-10-24 18:54:02,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:54:02,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-24 18:54:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:54:02,095 INFO L225 Difference]: With dead ends: 2137 [2018-10-24 18:54:02,095 INFO L226 Difference]: Without dead ends: 1527 [2018-10-24 18:54:02,111 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 18:54:02,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2018-10-24 18:54:02,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1513. [2018-10-24 18:54:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1513 states. [2018-10-24 18:54:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2344 transitions. [2018-10-24 18:54:02,279 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2344 transitions. Word has length 25 [2018-10-24 18:54:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:54:02,280 INFO L481 AbstractCegarLoop]: Abstraction has 1513 states and 2344 transitions. [2018-10-24 18:54:02,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:54:02,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2344 transitions. [2018-10-24 18:54:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-24 18:54:02,285 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:54:02,286 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:54:02,286 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:54:02,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:54:02,286 INFO L82 PathProgramCache]: Analyzing trace with hash -72391217, now seen corresponding path program 1 times [2018-10-24 18:54:02,287 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:54:02,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:02,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:54:02,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:02,288 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:54:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:54:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:54:02,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:54:02,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:54:02,604 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:54:02,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:54:02,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:54:02,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:54:02,607 INFO L87 Difference]: Start difference. First operand 1513 states and 2344 transitions. Second operand 5 states. [2018-10-24 18:54:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:54:16,342 INFO L93 Difference]: Finished difference Result 4413 states and 7007 transitions. [2018-10-24 18:54:16,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:54:16,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-10-24 18:54:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:54:16,364 INFO L225 Difference]: With dead ends: 4413 [2018-10-24 18:54:16,365 INFO L226 Difference]: Without dead ends: 2906 [2018-10-24 18:54:16,371 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:54:16,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2018-10-24 18:54:16,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2873. [2018-10-24 18:54:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2018-10-24 18:54:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4204 transitions. [2018-10-24 18:54:16,478 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4204 transitions. Word has length 97 [2018-10-24 18:54:16,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:54:16,479 INFO L481 AbstractCegarLoop]: Abstraction has 2873 states and 4204 transitions. [2018-10-24 18:54:16,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:54:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4204 transitions. [2018-10-24 18:54:16,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-24 18:54:16,486 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:54:16,487 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:54:16,487 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:54:16,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:54:16,488 INFO L82 PathProgramCache]: Analyzing trace with hash 902926633, now seen corresponding path program 1 times [2018-10-24 18:54:16,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:54:16,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:16,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:54:16,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:16,490 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:54:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:54:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:54:16,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:54:16,797 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:54:16,798 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 101 with the following transitions: [2018-10-24 18:54:16,801 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [810], [812], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 18:54:16,868 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:54:16,869 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:54:18,233 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:54:38,321 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:54:38,323 INFO L272 AbstractInterpreter]: Visited 82 different actions 538 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 18:54:38,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:54:38,358 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:54:40,047 INFO L232 lantSequenceWeakener]: Weakened 28 states. On average, predicates are now at 78.13% of their original sizes. [2018-10-24 18:54:40,047 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:55:09,974 INFO L413 sIntCurrentIteration]: We have 99 unified AI predicates [2018-10-24 18:55:09,975 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:55:09,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:55:09,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [7] total 30 [2018-10-24 18:55:09,976 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:55:09,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-24 18:55:09,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-24 18:55:09,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2018-10-24 18:55:09,978 INFO L87 Difference]: Start difference. First operand 2873 states and 4204 transitions. Second operand 25 states. Received shutdown request... [2018-10-24 18:57:30,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 18:57:30,270 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:57:30,275 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:57:30,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:57:30 BoogieIcfgContainer [2018-10-24 18:57:30,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:57:30,276 INFO L168 Benchmark]: Toolchain (without parser) took 240135.33 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -672.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 18:57:30,278 INFO L168 Benchmark]: CDTParser took 0.24 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 18:57:30,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1825.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:57:30,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 505.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -903.4 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:57:30,281 INFO L168 Benchmark]: Boogie Preprocessor took 271.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:57:30,283 INFO L168 Benchmark]: RCFGBuilder took 15753.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 454.1 MB). Peak memory consumption was 454.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:57:30,284 INFO L168 Benchmark]: TraceAbstraction took 221773.26 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -404.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 18:57:30,293 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1825.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 505.96 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -903.4 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 271.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15753.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 454.1 MB). Peak memory consumption was 454.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221773.26 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -404.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 62). Cancelled while BasicCegarLoop was constructing difference of abstraction (2873states) and FLOYD_HOARE automaton (currently 18 states, 25 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 34 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 221.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 166.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 772 SDtfs, 4150 SDslu, 640 SDs, 0 SdLazy, 6246 SolverSat, 1603 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 60.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 124 GetRequests, 74 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 34.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2873occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 21.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.991002331002331 AbsIntWeakeningRatio, 0.21212121212121213 AbsIntAvgWeakeningVarsNumRemoved, 769.2424242424242 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 47 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 68355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 18/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown