java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 05:23:52,846 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 05:23:52,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 05:23:52,864 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 05:23:52,864 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 05:23:52,866 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 05:23:52,867 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 05:23:52,872 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 05:23:52,874 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 05:23:52,877 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 05:23:52,878 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 05:23:52,878 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 05:23:52,880 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 05:23:52,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 05:23:52,886 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 05:23:52,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 05:23:52,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 05:23:52,896 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 05:23:52,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 05:23:52,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 05:23:52,913 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 05:23:52,920 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 05:23:52,923 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 05:23:52,944 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 05:23:52,944 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 05:23:52,946 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 05:23:52,947 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 05:23:52,948 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 05:23:52,976 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 05:23:52,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 05:23:52,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 05:23:52,982 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 05:23:52,985 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 05:23:52,986 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 05:23:52,986 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 05:23:52,986 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 05:23:52,986 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 05:23:52,986 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 05:23:52,987 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 05:23:52,987 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 05:23:52,988 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 05:23:52,988 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 05:23:52,988 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 05:23:52,988 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 05:23:52,989 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 05:23:52,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 05:23:52,991 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 05:23:52,991 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 05:23:52,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 05:23:52,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 05:23:52,991 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 05:23:52,992 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 05:23:52,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 05:23:52,992 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 05:23:52,992 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 05:23:52,992 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 05:23:52,993 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 05:23:52,993 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 05:23:52,993 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 05:23:52,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 05:23:52,993 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 05:23:52,993 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 05:23:52,995 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 05:23:53,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 05:23:53,081 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 05:23:53,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 05:23:53,090 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 05:23:53,090 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 05:23:53,092 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c [2018-07-21 05:23:53,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/5988503ca/dedde455fc4a4aa38abe2e97b2a744e6/FLAGeedb12faf [2018-07-21 05:23:54,075 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 05:23:54,076 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c [2018-07-21 05:23:54,134 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/5988503ca/dedde455fc4a4aa38abe2e97b2a744e6/FLAGeedb12faf [2018-07-21 05:23:54,154 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/5988503ca/dedde455fc4a4aa38abe2e97b2a744e6 [2018-07-21 05:23:54,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 05:23:54,200 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 05:23:54,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 05:23:54,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 05:23:54,210 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 05:23:54,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:23:54" (1/1) ... [2018-07-21 05:23:54,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c9bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:54, skipping insertion in model container [2018-07-21 05:23:54,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:23:54" (1/1) ... [2018-07-21 05:23:54,533 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 05:23:55,558 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 05:23:55,577 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 05:23:56,115 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 05:23:56,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56 WrapperNode [2018-07-21 05:23:56,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 05:23:56,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 05:23:56,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 05:23:56,395 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 05:23:56,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:56,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:56,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 05:23:56,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 05:23:56,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 05:23:56,745 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 05:23:56,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:56,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:56,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:56,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:57,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:57,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:57,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... [2018-07-21 05:23:57,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 05:23:57,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 05:23:57,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 05:23:57,794 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 05:23:57,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 05:23:57,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 05:23:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 05:23:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 05:23:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 05:23:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 05:23:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 05:23:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 05:23:57,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 05:23:57,991 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 05:23:57,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 05:24:11,056 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 05:24:11,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:24:11 BoogieIcfgContainer [2018-07-21 05:24:11,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 05:24:11,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 05:24:11,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 05:24:11,062 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 05:24:11,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:23:54" (1/3) ... [2018-07-21 05:24:11,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1260ef9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:24:11, skipping insertion in model container [2018-07-21 05:24:11,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:23:56" (2/3) ... [2018-07-21 05:24:11,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1260ef9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:24:11, skipping insertion in model container [2018-07-21 05:24:11,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:24:11" (3/3) ... [2018-07-21 05:24:11,066 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label49_false-unreach-call.c [2018-07-21 05:24:11,092 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 05:24:11,107 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 05:24:11,170 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 05:24:11,171 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 05:24:11,171 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 05:24:11,171 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 05:24:11,171 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 05:24:11,171 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 05:24:11,172 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 05:24:11,172 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 05:24:11,172 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 05:24:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-21 05:24:11,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-21 05:24:11,221 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:24:11,230 INFO L358 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] [2018-07-21 05:24:11,231 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:24:11,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1055432036, now seen corresponding path program 1 times [2018-07-21 05:24:11,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:24:11,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:11,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:24:11,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:11,291 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:24:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:24:11,708 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-21 05:24:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:24:11,721 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:24:11,722 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 05:24:11,722 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:24:11,726 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 05:24:11,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 05:24:11,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 05:24:11,746 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-21 05:24:20,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:24:20,503 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-07-21 05:24:20,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 05:24:20,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-07-21 05:24:20,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:24:20,541 INFO L225 Difference]: With dead ends: 2166 [2018-07-21 05:24:20,541 INFO L226 Difference]: Without dead ends: 1556 [2018-07-21 05:24:20,559 INFO L578 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 [2018-07-21 05:24:20,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-07-21 05:24:20,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-07-21 05:24:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-07-21 05:24:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-07-21 05:24:20,714 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 22 [2018-07-21 05:24:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:24:20,714 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-07-21 05:24:20,714 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 05:24:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-07-21 05:24:20,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-07-21 05:24:20,723 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:24:20,723 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 05:24:20,723 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:24:20,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1925554902, now seen corresponding path program 1 times [2018-07-21 05:24:20,724 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:24:20,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:20,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:24:20,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:20,725 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:24:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:24:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:24:20,991 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:24:20,991 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 05:24:20,991 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:24:20,993 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 05:24:20,994 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 05:24:20,994 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 05:24:20,994 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-07-21 05:24:30,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:24:30,448 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-07-21 05:24:30,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:24:30,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-07-21 05:24:30,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:24:30,467 INFO L225 Difference]: With dead ends: 3059 [2018-07-21 05:24:30,467 INFO L226 Difference]: Without dead ends: 1997 [2018-07-21 05:24:30,472 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 05:24:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-07-21 05:24:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-07-21 05:24:30,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-07-21 05:24:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-07-21 05:24:30,590 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 98 [2018-07-21 05:24:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:24:30,592 INFO L471 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-07-21 05:24:30,592 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 05:24:30,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-07-21 05:24:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-21 05:24:30,598 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:24:30,599 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 05:24:30,599 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:24:30,599 INFO L82 PathProgramCache]: Analyzing trace with hash 637946146, now seen corresponding path program 1 times [2018-07-21 05:24:30,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:24:30,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:30,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:24:30,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:30,602 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:24:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:24:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:24:30,972 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:24:30,972 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 05:24:30,972 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:24:30,973 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 05:24:30,973 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 05:24:30,973 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 05:24:30,973 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-07-21 05:24:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:24:37,072 INFO L93 Difference]: Finished difference Result 4880 states and 7834 transitions. [2018-07-21 05:24:37,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:24:37,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-07-21 05:24:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:24:37,092 INFO L225 Difference]: With dead ends: 4880 [2018-07-21 05:24:37,092 INFO L226 Difference]: Without dead ends: 2911 [2018-07-21 05:24:37,101 INFO L578 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 [2018-07-21 05:24:37,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-07-21 05:24:37,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2880. [2018-07-21 05:24:37,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-07-21 05:24:37,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3936 transitions. [2018-07-21 05:24:37,229 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3936 transitions. Word has length 102 [2018-07-21 05:24:37,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:24:37,230 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 3936 transitions. [2018-07-21 05:24:37,230 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 05:24:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3936 transitions. [2018-07-21 05:24:37,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-21 05:24:37,239 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:24:37,240 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 05:24:37,240 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:24:37,240 INFO L82 PathProgramCache]: Analyzing trace with hash -427762753, now seen corresponding path program 1 times [2018-07-21 05:24:37,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:24:37,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:37,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:24:37,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:37,242 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:24:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:24:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:24:37,565 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:24:37,565 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 05:24:37,565 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:24:37,566 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 05:24:37,566 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 05:24:37,567 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 05:24:37,567 INFO L87 Difference]: Start difference. First operand 2880 states and 3936 transitions. Second operand 4 states. [2018-07-21 05:24:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:24:42,264 INFO L93 Difference]: Finished difference Result 5754 states and 7882 transitions. [2018-07-21 05:24:42,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 05:24:42,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2018-07-21 05:24:42,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:24:42,282 INFO L225 Difference]: With dead ends: 5754 [2018-07-21 05:24:42,283 INFO L226 Difference]: Without dead ends: 2880 [2018-07-21 05:24:42,296 INFO L578 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 [2018-07-21 05:24:42,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2018-07-21 05:24:42,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2880. [2018-07-21 05:24:42,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-07-21 05:24:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3720 transitions. [2018-07-21 05:24:42,510 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3720 transitions. Word has length 132 [2018-07-21 05:24:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:24:42,510 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 3720 transitions. [2018-07-21 05:24:42,510 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 05:24:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3720 transitions. [2018-07-21 05:24:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-07-21 05:24:42,516 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:24:42,516 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-07-21 05:24:42,516 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:24:42,516 INFO L82 PathProgramCache]: Analyzing trace with hash 944830552, now seen corresponding path program 1 times [2018-07-21 05:24:42,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:24:42,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:42,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:24:42,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:24:42,518 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:24:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:24:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 69 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-21 05:24:43,493 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:24:43,494 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 05:24:43,495 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-07-21 05:24:43,496 INFO L201 CegarAbsIntRunner]: [0], [1], [714], [718], [724], [728], [730], [735], [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], [1207], [1215], [1223], [1228], [1232], [1236], [1240], [1244], [1248], [1251], [1252], [1256], [1260], [1264], [1268], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1306], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-21 05:24:43,581 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 05:24:43,582 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 05:24:49,363 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 05:27:09,836 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-21 05:27:09,902 INFO L272 AbstractInterpreter]: Visited 97 different actions 557 times. Merged at 7 different actions 33 times. Widened at 1 different actions 1 times. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-07-21 05:27:09,971 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-21 05:27:09,971 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:27:09,971 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 05:27:10,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:27:10,295 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 05:27:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:27:10,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 05:27:13,105 WARN L169 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-07-21 05:27:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-21 05:27:13,441 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-21 05:27:13,711 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-21 05:27:14,606 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-07-21 05:27:14,725 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-07-21 05:27:17,175 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 15 [2018-07-21 05:27:19,817 WARN L169 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2018-07-21 05:27:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:27:20,462 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:27:20,462 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-21 05:27:20,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:27:20,803 INFO L282 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 05:27:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:27:21,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 05:27:21,311 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-21 05:27:21,311 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-21 05:27:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:27:26,000 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-21 05:27:26,001 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 17 [2018-07-21 05:27:26,001 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-21 05:27:26,002 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-21 05:27:26,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-21 05:27:26,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=193, Unknown=1, NotChecked=0, Total=272 [2018-07-21 05:27:26,002 INFO L87 Difference]: Start difference. First operand 2880 states and 3720 transitions. Second operand 11 states. Received shutdown request... [2018-07-21 05:27:37,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 05:27:37,177 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 05:27:37,357 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 05:27:37,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:27:37 BoogieIcfgContainer [2018-07-21 05:27:37,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 05:27:37,391 INFO L168 Benchmark]: Toolchain (without parser) took 223223.17 ms. Allocated memory was 303.6 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 241.7 MB in the beginning and 817.8 MB in the end (delta: -576.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-07-21 05:27:37,392 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 303.6 MB. Free memory is still 268.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 05:27:37,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2192.04 ms. Allocated memory is still 303.6 MB. Free memory was 239.7 MB in the beginning and 223.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 87.7 MB. Max. memory is 5.3 GB. [2018-07-21 05:27:37,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 350.34 ms. Allocated memory is still 303.6 MB. Free memory was 221.9 MB in the beginning and 175.8 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 5.3 GB. [2018-07-21 05:27:37,394 INFO L168 Benchmark]: Boogie Preprocessor took 1048.44 ms. Allocated memory was 303.6 MB in the beginning and 529.5 MB in the end (delta: 226.0 MB). Free memory was 175.8 MB in the beginning and 432.2 MB in the end (delta: -256.4 MB). Peak memory consumption was 42.8 MB. Max. memory is 5.3 GB. [2018-07-21 05:27:37,394 INFO L168 Benchmark]: RCFGBuilder took 13263.26 ms. Allocated memory was 529.5 MB in the beginning and 619.7 MB in the end (delta: 90.2 MB). Free memory was 432.2 MB in the beginning and 325.0 MB in the end (delta: 107.3 MB). Peak memory consumption was 197.4 MB. Max. memory is 5.3 GB. [2018-07-21 05:27:37,395 INFO L168 Benchmark]: TraceAbstraction took 206299.85 ms. Allocated memory was 619.7 MB in the beginning and 2.3 GB in the end (delta: 1.7 GB). Free memory was 325.0 MB in the beginning and 817.8 MB in the end (delta: -492.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-07-21 05:27:37,399 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 303.6 MB. Free memory is still 268.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2192.04 ms. Allocated memory is still 303.6 MB. Free memory was 239.7 MB in the beginning and 223.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 87.7 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 350.34 ms. Allocated memory is still 303.6 MB. Free memory was 221.9 MB in the beginning and 175.8 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1048.44 ms. Allocated memory was 303.6 MB in the beginning and 529.5 MB in the end (delta: 226.0 MB). Free memory was 175.8 MB in the beginning and 432.2 MB in the end (delta: -256.4 MB). Peak memory consumption was 42.8 MB. Max. memory is 5.3 GB. * RCFGBuilder took 13263.26 ms. Allocated memory was 529.5 MB in the beginning and 619.7 MB in the end (delta: 90.2 MB). Free memory was 432.2 MB in the beginning and 325.0 MB in the end (delta: 107.3 MB). Peak memory consumption was 197.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 206299.85 ms. Allocated memory was 619.7 MB in the beginning and 2.3 GB in the end (delta: 1.7 GB). Free memory was 325.0 MB in the beginning and 817.8 MB in the end (delta: -492.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 53). Cancelled while BasicCegarLoop was constructing difference of abstraction (2880states) and interpolant automaton (currently 10 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (981 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 206.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 40.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1552 SDtfs, 7164 SDslu, 1233 SDs, 0 SdLazy, 12142 SolverSat, 2577 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 36.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 789 GetRequests, 743 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2880occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 146.4s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 541 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 16.7s InterpolantComputationTime, 912 NumberOfCodeBlocks, 912 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1275 ConstructedInterpolants, 186 QuantifiedInterpolants, 1711276 SizeOfPredicates, 4 NumberOfNonLiveVariables, 756 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 360/575 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label49_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_05-27-37-435.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label49_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_05-27-37-435.csv Completed graceful shutdown