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_label16_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 05:05:55,885 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 05:05:55,888 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 05:05:55,903 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 05:05:55,904 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 05:05:55,905 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 05:05:55,906 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 05:05:55,909 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 05:05:55,910 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 05:05:55,913 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 05:05:55,913 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 05:05:55,914 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 05:05:55,915 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 05:05:55,915 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 05:05:55,919 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 05:05:55,919 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 05:05:55,927 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 05:05:55,929 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 05:05:55,931 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 05:05:55,936 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 05:05:55,937 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 05:05:55,941 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 05:05:55,943 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 05:05:55,958 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 05:05:55,986 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 05:05:55,986 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 05:05:55,987 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 05:05:55,987 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 05:05:55,987 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 05:05:55,987 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 05:05:55,988 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 05:05:55,988 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 05:05:55,988 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 05:05:55,988 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 05:05:55,988 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 05:05:55,988 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 05:05:55,992 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 05:05:55,992 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 05:05:55,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 05:05:55,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 05:05:55,993 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 05:05:55,993 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 05:05:55,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 05:05:55,993 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 05:05:55,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 05:05:55,994 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 05:05:55,994 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 05:05:55,994 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 05:05:55,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 05:05:55,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 05:05:55,994 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 05:05:55,995 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 05:05:55,997 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 05:05:55,997 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 05:05:55,997 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 05:05:55,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 05:05:55,997 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 05:05:55,998 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 05:05:55,998 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 05:05:56,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 05:05:56,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 05:05:56,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 05:05:56,079 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 05:05:56,080 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 05:05:56,081 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label16_false-unreach-call.c [2018-07-21 05:05:56,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f981285/c42c12fd336d4fe7b8f1eff38466ab3b/FLAGbfd148d64 [2018-07-21 05:05:57,143 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 05:05:57,144 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label16_false-unreach-call.c [2018-07-21 05:05:57,240 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f981285/c42c12fd336d4fe7b8f1eff38466ab3b/FLAGbfd148d64 [2018-07-21 05:05:57,262 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f981285/c42c12fd336d4fe7b8f1eff38466ab3b [2018-07-21 05:05:57,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 05:05:57,282 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 05:05:57,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 05:05:57,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 05:05:57,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 05:05:57,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:05:57" (1/1) ... [2018-07-21 05:05:57,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33322c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:57, skipping insertion in model container [2018-07-21 05:05:57,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:05:57" (1/1) ... [2018-07-21 05:05:57,623 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 05:05:58,578 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 05:05:58,599 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 05:05:59,394 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 05:05:59,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59 WrapperNode [2018-07-21 05:05:59,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 05:05:59,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 05:05:59,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 05:05:59,618 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 05:05:59,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:05:59,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:06:00,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 05:06:00,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 05:06:00,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 05:06:00,007 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 05:06:00,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:06:00,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:06:00,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:06:00,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:06:00,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:06:00,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:06:00,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (1/1) ... [2018-07-21 05:06:00,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 05:06:00,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 05:06:00,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 05:06:00,994 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 05:06:00,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (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 05:06:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 05:06:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 05:06:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 05:06:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 05:06:01,070 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 05:06:01,071 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 05:06:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 05:06:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 05:06:01,071 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 05:06:01,071 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 05:06:12,380 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 05:06:12,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:06:12 BoogieIcfgContainer [2018-07-21 05:06:12,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 05:06:12,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 05:06:12,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 05:06:12,428 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 05:06:12,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:05:57" (1/3) ... [2018-07-21 05:06:12,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314f7ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:06:12, skipping insertion in model container [2018-07-21 05:06:12,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:05:59" (2/3) ... [2018-07-21 05:06:12,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314f7ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:06:12, skipping insertion in model container [2018-07-21 05:06:12,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:06:12" (3/3) ... [2018-07-21 05:06:12,433 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label16_false-unreach-call.c [2018-07-21 05:06:12,447 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 05:06:12,456 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 05:06:12,523 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 05:06:12,524 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 05:06:12,524 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 05:06:12,524 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 05:06:12,524 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 05:06:12,525 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 05:06:12,525 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 05:06:12,525 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 05:06:12,525 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 05:06:12,561 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-21 05:06:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-21 05:06:12,569 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:06:12,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 05:06:12,570 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 05:06:12,578 INFO L82 PathProgramCache]: Analyzing trace with hash 676440012, now seen corresponding path program 1 times [2018-07-21 05:06:12,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:06:12,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:06:12,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:06:12,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:06:12,632 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:06:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:06:13,066 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 05:06:13,068 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:06:13,069 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 05:06:13,069 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:06:13,080 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 05:06:13,109 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 05:06:13,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 05:06:13,113 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-21 05:06:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:06:22,339 INFO L93 Difference]: Finished difference Result 2142 states and 3971 transitions. [2018-07-21 05:06:22,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 05:06:22,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-07-21 05:06:22,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:06:22,370 INFO L225 Difference]: With dead ends: 2142 [2018-07-21 05:06:22,370 INFO L226 Difference]: Without dead ends: 1532 [2018-07-21 05:06:22,379 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 05:06:22,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2018-07-21 05:06:22,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1519. [2018-07-21 05:06:22,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2018-07-21 05:06:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2456 transitions. [2018-07-21 05:06:22,576 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2456 transitions. Word has length 32 [2018-07-21 05:06:22,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:06:22,577 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2456 transitions. [2018-07-21 05:06:22,577 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 05:06:22,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2456 transitions. [2018-07-21 05:06:22,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-21 05:06:22,586 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:06:22,586 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:22,586 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 05:06:22,588 INFO L82 PathProgramCache]: Analyzing trace with hash 84371834, now seen corresponding path program 1 times [2018-07-21 05:06:22,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:06:22,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:06:22,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:06:22,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:06:22,590 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:06:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:06:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:06:22,963 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:06:22,963 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 05:06:22,963 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:06:22,965 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 05:06:22,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 05:06:22,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-21 05:06:22,966 INFO L87 Difference]: Start difference. First operand 1519 states and 2456 transitions. Second operand 6 states. [2018-07-21 05:06:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:06:38,547 INFO L93 Difference]: Finished difference Result 5750 states and 9635 transitions. [2018-07-21 05:06:38,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:06:38,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-21 05:06:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:06:38,582 INFO L225 Difference]: With dead ends: 5750 [2018-07-21 05:06:38,582 INFO L226 Difference]: Without dead ends: 4237 [2018-07-21 05:06:38,595 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-21 05:06:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2018-07-21 05:06:38,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 4230. [2018-07-21 05:06:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4230 states. [2018-07-21 05:06:38,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4230 states to 4230 states and 5789 transitions. [2018-07-21 05:06:38,769 INFO L78 Accepts]: Start accepts. Automaton has 4230 states and 5789 transitions. Word has length 104 [2018-07-21 05:06:38,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:06:38,769 INFO L471 AbstractCegarLoop]: Abstraction has 4230 states and 5789 transitions. [2018-07-21 05:06:38,769 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 05:06:38,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4230 states and 5789 transitions. [2018-07-21 05:06:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-21 05:06:38,774 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:06:38,774 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:38,774 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 05:06:38,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1289037862, now seen corresponding path program 1 times [2018-07-21 05:06:38,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:06:38,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:06:38,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:06:38,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:06:38,776 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:06:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:06:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:06:39,102 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:06:39,102 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 05:06:39,104 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2018-07-21 05:06:39,107 INFO L201 CegarAbsIntRunner]: [0], [1], [714], [718], [724], [728], [730], [735], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [890], [892], [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], [1247], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-21 05:06:39,189 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 05:06:39,189 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 05:06:44,911 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 05:07:00,082 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-21 05:07:00,083 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-07-21 05:07:00,125 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-21 05:07:00,126 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:07:00,126 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 05:07:00,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:07:00,139 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 05:07:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:07:00,245 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 05:07:04,986 WARN L169 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 42 [2018-07-21 05:07:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:07:05,153 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-21 05:07:08,101 WARN L169 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-07-21 05:07:08,498 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:07:08,535 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-21 05:07:08,535 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-07-21 05:07:08,535 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:07:08,536 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 05:07:08,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 05:07:08,536 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2018-07-21 05:07:08,536 INFO L87 Difference]: Start difference. First operand 4230 states and 5789 transitions. Second operand 6 states. [2018-07-21 05:07:37,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:07:37,010 INFO L93 Difference]: Finished difference Result 12500 states and 17967 transitions. [2018-07-21 05:07:37,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-21 05:07:37,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2018-07-21 05:07:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:07:37,061 INFO L225 Difference]: With dead ends: 12500 [2018-07-21 05:07:37,062 INFO L226 Difference]: Without dead ends: 8276 [2018-07-21 05:07:37,086 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 209 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2018-07-21 05:07:37,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8276 states. [2018-07-21 05:07:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8276 to 8267. [2018-07-21 05:07:37,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8267 states. [2018-07-21 05:07:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8267 states to 8267 states and 11467 transitions. [2018-07-21 05:07:37,402 INFO L78 Accepts]: Start accepts. Automaton has 8267 states and 11467 transitions. Word has length 107 [2018-07-21 05:07:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:07:37,403 INFO L471 AbstractCegarLoop]: Abstraction has 8267 states and 11467 transitions. [2018-07-21 05:07:37,403 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 05:07:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 8267 states and 11467 transitions. [2018-07-21 05:07:37,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-21 05:07:37,408 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:07:37,408 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:37,408 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 05:07:37,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1171554854, now seen corresponding path program 1 times [2018-07-21 05:07:37,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:07:37,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:07:37,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:07:37,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:07:37,417 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:07:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:07:37,790 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 05:07:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:07:38,193 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:07:38,193 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 05:07:38,194 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 121 with the following transitions: [2018-07-21 05:07:38,194 INFO L201 CegarAbsIntRunner]: [0], [1], [714], [718], [724], [728], [730], [735], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [890], [892], [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], [1252], [1256], [1260], [1264], [1268], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1306], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-21 05:07:38,205 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 05:07:38,205 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 05:07:44,656 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 05:08:10,719 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 05:08:10,719 INFO L272 AbstractInterpreter]: Visited 95 different actions 273 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-07-21 05:08:10,759 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 05:08:20,262 INFO L232 lantSequenceWeakener]: Weakened 118 states. On average, predicates are now at 75.57% of their original sizes. [2018-07-21 05:08:20,262 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 05:08:55,339 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 05:08:55,340 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 05:08:55,340 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [42] imperfect sequences [7] total 47 [2018-07-21 05:08:55,341 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:08:55,341 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-21 05:08:55,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-21 05:08:55,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=629, Invalid=1093, Unknown=0, NotChecked=0, Total=1722 [2018-07-21 05:08:55,342 INFO L87 Difference]: Start difference. First operand 8267 states and 11467 transitions. Second operand 42 states. Received shutdown request... [2018-07-21 05:09:38,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-21 05:09:38,746 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 05:09:38,752 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 05:09:38,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:09:38 BoogieIcfgContainer [2018-07-21 05:09:38,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 05:09:38,754 INFO L168 Benchmark]: Toolchain (without parser) took 221477.91 ms. Allocated memory was 300.9 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 239.4 MB in the beginning and 546.9 MB in the end (delta: -307.5 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-07-21 05:09:38,755 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 300.9 MB. Free memory is still 265.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 05:09:38,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2332.08 ms. Allocated memory was 300.9 MB in the beginning and 338.7 MB in the end (delta: 37.7 MB). Free memory was 237.4 MB in the beginning and 170.9 MB in the end (delta: 66.5 MB). Peak memory consumption was 104.3 MB. Max. memory is 5.3 GB. [2018-07-21 05:09:38,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 389.42 ms. Allocated memory was 338.7 MB in the beginning and 400.6 MB in the end (delta: 61.9 MB). Free memory was 170.9 MB in the beginning and 293.6 MB in the end (delta: -122.7 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. [2018-07-21 05:09:38,756 INFO L168 Benchmark]: Boogie Preprocessor took 985.97 ms. Allocated memory was 400.6 MB in the beginning and 561.0 MB in the end (delta: 160.4 MB). Free memory was 293.6 MB in the beginning and 460.5 MB in the end (delta: -166.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 5.3 GB. [2018-07-21 05:09:38,757 INFO L168 Benchmark]: RCFGBuilder took 11430.20 ms. Allocated memory was 561.0 MB in the beginning and 674.2 MB in the end (delta: 113.2 MB). Free memory was 460.5 MB in the beginning and 464.6 MB in the end (delta: -4.1 MB). Peak memory consumption was 210.3 MB. Max. memory is 5.3 GB. [2018-07-21 05:09:38,758 INFO L168 Benchmark]: TraceAbstraction took 206328.34 ms. Allocated memory was 674.2 MB in the beginning and 2.3 GB in the end (delta: 1.6 GB). Free memory was 464.6 MB in the beginning and 546.9 MB in the end (delta: -82.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-07-21 05:09:38,762 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 300.9 MB. Free memory is still 265.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2332.08 ms. Allocated memory was 300.9 MB in the beginning and 338.7 MB in the end (delta: 37.7 MB). Free memory was 237.4 MB in the beginning and 170.9 MB in the end (delta: 66.5 MB). Peak memory consumption was 104.3 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 389.42 ms. Allocated memory was 338.7 MB in the beginning and 400.6 MB in the end (delta: 61.9 MB). Free memory was 170.9 MB in the beginning and 293.6 MB in the end (delta: -122.7 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 985.97 ms. Allocated memory was 400.6 MB in the beginning and 561.0 MB in the end (delta: 160.4 MB). Free memory was 293.6 MB in the beginning and 460.5 MB in the end (delta: -166.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11430.20 ms. Allocated memory was 561.0 MB in the beginning and 674.2 MB in the end (delta: 113.2 MB). Free memory was 460.5 MB in the beginning and 464.6 MB in the end (delta: -4.1 MB). Peak memory consumption was 210.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 206328.34 ms. Allocated memory was 674.2 MB in the beginning and 2.3 GB in the end (delta: 1.6 GB). Free memory was 464.6 MB in the beginning and 546.9 MB in the end (delta: -82.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 83). Cancelled while BasicCegarLoop was constructing difference of abstraction (8267states) and interpolant automaton (currently 14 states, 42 states before enhancement), while ReachableStatesComputation was computing reachable states (2049 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 206.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 96.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1012 SDtfs, 9129 SDslu, 1356 SDs, 0 SdLazy, 12299 SolverSat, 3267 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 61.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 365 GetRequests, 283 SyntacticMatches, 14 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 44.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8267occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 53.5s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9925145442792502 AbsIntWeakeningRatio, 0.17647058823529413 AbsIntAvgWeakeningVarsNumRemoved, 43.15126050420168 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 3 MinimizatonAttempts, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 571 ConstructedInterpolants, 80 QuantifiedInterpolants, 491384 SizeOfPredicates, 3 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 73/125 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_label16_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_05-09-38-774.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label16_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_05-09-38-774.csv Completed graceful shutdown