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/Problem18_label57_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 06:00:04,901 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 06:00:04,923 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 06:00:04,941 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 06:00:04,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 06:00:04,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 06:00:04,944 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 06:00:04,947 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 06:00:04,948 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 06:00:04,951 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 06:00:04,952 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 06:00:04,952 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 06:00:04,953 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 06:00:04,958 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 06:00:04,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 06:00:04,960 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 06:00:04,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 06:00:04,973 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 06:00:04,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 06:00:04,976 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 06:00:04,977 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 06:00:04,983 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 06:00:04,985 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 06:00:04,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 06:00:04,995 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 06:00:05,001 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 06:00:05,002 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 06:00:05,002 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 06:00:05,027 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 06:00:05,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 06:00:05,028 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 06:00:05,028 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 06:00:05,029 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 06:00:05,030 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 06:00:05,030 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 06:00:05,030 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 06:00:05,030 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 06:00:05,031 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 06:00:05,031 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 06:00:05,031 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 06:00:05,032 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 06:00:05,032 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 06:00:05,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 06:00:05,032 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 06:00:05,032 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 06:00:05,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 06:00:05,033 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 06:00:05,033 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 06:00:05,034 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 06:00:05,034 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 06:00:05,034 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 06:00:05,034 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 06:00:05,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 06:00:05,035 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 06:00:05,035 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 06:00:05,035 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 06:00:05,035 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 06:00:05,035 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 06:00:05,035 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 06:00:05,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 06:00:05,036 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 06:00:05,036 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 06:00:05,036 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 06:00:05,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 06:00:05,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 06:00:05,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 06:00:05,190 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 06:00:05,191 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 06:00:05,191 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label57_false-unreach-call.c [2018-07-21 06:00:06,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/01ece857a/8e9cd75022c6486b87e4159b1159b938/FLAG0b20c1b7f [2018-07-21 06:00:07,469 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 06:00:07,470 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label57_false-unreach-call.c [2018-07-21 06:00:07,948 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/01ece857a/8e9cd75022c6486b87e4159b1159b938/FLAG0b20c1b7f [2018-07-21 06:00:07,986 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/01ece857a/8e9cd75022c6486b87e4159b1159b938 [2018-07-21 06:00:07,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 06:00:10,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 06:00:10,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 06:00:10,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 06:00:10,121 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 06:00:10,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:00:07" (1/1) ... [2018-07-21 06:00:10,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ae90c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:10, skipping insertion in model container [2018-07-21 06:00:10,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:00:07" (1/1) ... [2018-07-21 06:00:10,856 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 06:00:11,866 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 06:00:11,928 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 06:00:12,538 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 06:00:12,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12 WrapperNode [2018-07-21 06:00:12,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 06:00:12,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 06:00:12,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 06:00:12,737 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 06:00:12,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:12,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:13,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 06:00:13,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 06:00:13,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 06:00:13,017 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 06:00:13,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:13,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:13,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:13,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:13,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:13,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:13,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (1/1) ... [2018-07-21 06:00:13,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 06:00:13,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 06:00:13,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 06:00:13,662 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 06:00:13,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (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 06:00:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 06:00:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 06:00:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 06:00:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 06:00:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 06:00:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 06:00:13,970 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 06:00:13,971 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 06:00:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 06:00:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 06:00:13,971 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 06:00:13,971 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 06:00:22,810 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 06:00:22,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:00:22 BoogieIcfgContainer [2018-07-21 06:00:22,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 06:00:22,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 06:00:22,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 06:00:22,973 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 06:00:22,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 06:00:07" (1/3) ... [2018-07-21 06:00:22,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376ab2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:00:22, skipping insertion in model container [2018-07-21 06:00:22,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:00:12" (2/3) ... [2018-07-21 06:00:22,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376ab2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:00:22, skipping insertion in model container [2018-07-21 06:00:22,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:00:22" (3/3) ... [2018-07-21 06:00:22,976 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label57_false-unreach-call.c [2018-07-21 06:00:23,009 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 06:00:23,048 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 06:00:23,293 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 06:00:23,293 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 06:00:23,294 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 06:00:23,294 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 06:00:23,294 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 06:00:23,294 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 06:00:23,294 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 06:00:23,294 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 06:00:23,294 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 06:00:23,419 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-21 06:00:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-21 06:00:23,425 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:00:23,425 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 06:00:23,426 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 06:00:23,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1385684669, now seen corresponding path program 1 times [2018-07-21 06:00:23,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:00:23,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:00:23,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:00:23,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:00:23,691 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:00:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:00:24,372 WARN L169 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 06:00:24,454 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 06:00:24,462 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:00:24,462 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 06:00:24,462 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:00:24,636 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 06:00:24,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 06:00:24,697 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 06:00:24,845 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-21 06:00:33,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:00:33,742 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-21 06:00:33,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 06:00:33,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-07-21 06:00:33,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:00:33,775 INFO L225 Difference]: With dead ends: 2251 [2018-07-21 06:00:33,775 INFO L226 Difference]: Without dead ends: 1474 [2018-07-21 06:00:33,784 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 06:00:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-21 06:00:34,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-21 06:00:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-21 06:00:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-07-21 06:00:34,079 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 15 [2018-07-21 06:00:34,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:00:34,079 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-07-21 06:00:34,080 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 06:00:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-07-21 06:00:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-21 06:00:34,085 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:00:34,085 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 06:00:34,085 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 06:00:34,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2061672167, now seen corresponding path program 1 times [2018-07-21 06:00:34,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:00:34,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:00:34,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:00:34,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:00:34,088 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:00:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:00:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:00:34,493 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:00:34,493 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 06:00:34,493 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:00:34,496 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 06:00:34,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 06:00:34,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 06:00:34,497 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-07-21 06:00:43,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:00:43,446 INFO L93 Difference]: Finished difference Result 4382 states and 8359 transitions. [2018-07-21 06:00:43,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 06:00:43,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2018-07-21 06:00:43,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:00:43,470 INFO L225 Difference]: With dead ends: 4382 [2018-07-21 06:00:43,470 INFO L226 Difference]: Without dead ends: 2914 [2018-07-21 06:00:43,477 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 06:00:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2018-07-21 06:00:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2890. [2018-07-21 06:00:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2890 states. [2018-07-21 06:00:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 5051 transitions. [2018-07-21 06:00:43,605 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 5051 transitions. Word has length 90 [2018-07-21 06:00:43,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:00:43,605 INFO L471 AbstractCegarLoop]: Abstraction has 2890 states and 5051 transitions. [2018-07-21 06:00:43,605 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 06:00:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 5051 transitions. [2018-07-21 06:00:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-21 06:00:43,611 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:00:43,611 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 06:00:43,611 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 06:00:43,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1541429853, now seen corresponding path program 1 times [2018-07-21 06:00:43,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:00:43,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:00:43,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:00:43,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:00:43,613 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:00:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:00:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:00:43,890 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:00:43,890 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 06:00:43,890 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:00:43,891 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 06:00:43,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 06:00:43,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 06:00:43,892 INFO L87 Difference]: Start difference. First operand 2890 states and 5051 transitions. Second operand 6 states. [2018-07-21 06:00:50,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:00:50,160 INFO L93 Difference]: Finished difference Result 8070 states and 14528 transitions. [2018-07-21 06:00:50,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 06:00:50,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-21 06:00:50,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:00:50,197 INFO L225 Difference]: With dead ends: 8070 [2018-07-21 06:00:50,197 INFO L226 Difference]: Without dead ends: 5186 [2018-07-21 06:00:50,208 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 06:00:50,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2018-07-21 06:00:50,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5132. [2018-07-21 06:00:50,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5132 states. [2018-07-21 06:00:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5132 states to 5132 states and 8602 transitions. [2018-07-21 06:00:50,432 INFO L78 Accepts]: Start accepts. Automaton has 5132 states and 8602 transitions. Word has length 104 [2018-07-21 06:00:50,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:00:50,433 INFO L471 AbstractCegarLoop]: Abstraction has 5132 states and 8602 transitions. [2018-07-21 06:00:50,433 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 06:00:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5132 states and 8602 transitions. [2018-07-21 06:00:50,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-21 06:00:50,441 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:00:50,442 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 06:00:50,448 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 06:00:50,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1207288527, now seen corresponding path program 1 times [2018-07-21 06:00:50,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:00:50,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:00:50,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:00:50,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:00:50,449 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:00:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:00:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:00:50,688 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:00:50,688 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 06:00:50,688 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:00:50,688 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 06:00:50,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 06:00:50,689 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 06:00:50,689 INFO L87 Difference]: Start difference. First operand 5132 states and 8602 transitions. Second operand 6 states. [2018-07-21 06:00:55,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:00:59,847 INFO L93 Difference]: Finished difference Result 12584 states and 21400 transitions. [2018-07-21 06:01:00,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 06:01:00,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-07-21 06:01:00,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:01:00,945 INFO L225 Difference]: With dead ends: 12584 [2018-07-21 06:01:00,945 INFO L226 Difference]: Without dead ends: 7458 [2018-07-21 06:01:00,970 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 06:01:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7458 states. [2018-07-21 06:01:01,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7458 to 7384. [2018-07-21 06:01:01,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7384 states. [2018-07-21 06:01:01,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7384 states to 7384 states and 11949 transitions. [2018-07-21 06:01:01,305 INFO L78 Accepts]: Start accepts. Automaton has 7384 states and 11949 transitions. Word has length 110 [2018-07-21 06:01:01,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:01:01,306 INFO L471 AbstractCegarLoop]: Abstraction has 7384 states and 11949 transitions. [2018-07-21 06:01:01,306 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 06:01:01,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7384 states and 11949 transitions. [2018-07-21 06:01:01,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-21 06:01:01,309 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:01:01,310 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 06:01:01,310 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 06:01:01,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1408362430, now seen corresponding path program 1 times [2018-07-21 06:01:01,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:01:01,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:01:01,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:01:01,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:01:01,315 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:01:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:01:01,644 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 06:01:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:01:02,032 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 06:01:02,033 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 06:01:02,034 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 128 with the following transitions: [2018-07-21 06:01:02,036 INFO L201 CegarAbsIntRunner]: [0], [1], [1627], [1631], [1637], [1641], [1643], [1648], [1655], [1663], [1667], [1669], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2308], [3020], [3021], [3022], [3023], [3027], [3028] [2018-07-21 06:01:02,172 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 06:01:02,172 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 06:01:16,362 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 06:01:16,711 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 06:01:16,713 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 06:01:16,758 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 06:01:23,328 INFO L232 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 77.27% of their original sizes. [2018-07-21 06:01:23,328 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 06:01:23,971 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 06:01:23,972 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 06:01:23,972 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-07-21 06:01:23,973 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:01:23,973 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 06:01:23,973 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 06:01:23,974 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 06:01:23,974 INFO L87 Difference]: Start difference. First operand 7384 states and 11949 transitions. Second operand 7 states. [2018-07-21 06:03:02,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:03:02,322 INFO L93 Difference]: Finished difference Result 15467 states and 24999 transitions. [2018-07-21 06:03:02,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 06:03:02,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2018-07-21 06:03:02,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:03:02,375 INFO L225 Difference]: With dead ends: 15467 [2018-07-21 06:03:02,375 INFO L226 Difference]: Without dead ends: 8089 [2018-07-21 06:03:02,402 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-21 06:03:02,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2018-07-21 06:03:02,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 8087. [2018-07-21 06:03:02,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8087 states. [2018-07-21 06:03:02,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8087 states to 8087 states and 12664 transitions. [2018-07-21 06:03:02,803 INFO L78 Accepts]: Start accepts. Automaton has 8087 states and 12664 transitions. Word has length 127 [2018-07-21 06:03:02,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:03:02,803 INFO L471 AbstractCegarLoop]: Abstraction has 8087 states and 12664 transitions. [2018-07-21 06:03:02,803 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 06:03:02,804 INFO L276 IsEmpty]: Start isEmpty. Operand 8087 states and 12664 transitions. [2018-07-21 06:03:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-07-21 06:03:02,808 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:03:02,809 INFO L358 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 06:03:02,809 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 06:03:02,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1468997044, now seen corresponding path program 1 times [2018-07-21 06:03:02,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:03:02,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:03:02,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:03:02,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:03:02,814 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:03:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:03:03,459 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-21 06:03:03,659 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-21 06:03:03,888 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-21 06:03:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 70 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:03:04,281 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 06:03:04,281 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 06:03:04,281 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 315 with the following transitions: [2018-07-21 06:03:04,282 INFO L201 CegarAbsIntRunner]: [0], [1], [1627], [1631], [1637], [1641], [1643], [1648], [1655], [1663], [1667], [1669], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2308], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2608], [3020], [3021], [3022], [3023], [3027], [3028] [2018-07-21 06:03:04,303 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 06:03:04,303 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 06:03:12,869 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 06:03:34,843 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 06:03:34,843 INFO L272 AbstractInterpreter]: Visited 195 different actions 386 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 06:03:34,850 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 06:03:40,938 INFO L232 lantSequenceWeakener]: Weakened 312 states. On average, predicates are now at 77.33% of their original sizes. [2018-07-21 06:03:40,938 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 06:03:46,107 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 06:03:46,107 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 06:03:46,107 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2018-07-21 06:03:46,107 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:03:46,108 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-21 06:03:46,108 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-21 06:03:46,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-21 06:03:46,109 INFO L87 Difference]: Start difference. First operand 8087 states and 12664 transitions. Second operand 11 states. Received shutdown request... [2018-07-21 06:03:52,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 06:03:52,339 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 06:03:52,346 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 06:03:52,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 06:03:52 BoogieIcfgContainer [2018-07-21 06:03:52,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 06:03:52,348 INFO L168 Benchmark]: Toolchain (without parser) took 224350.09 ms. Allocated memory was 291.5 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 227.7 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 564.8 MB. Max. memory is 5.3 GB. [2018-07-21 06:03:52,349 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 291.5 MB. Free memory is still 256.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 06:03:52,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2641.62 ms. Allocated memory is still 291.5 MB. Free memory was 227.7 MB in the beginning and 229.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 81.3 MB. Max. memory is 5.3 GB. [2018-07-21 06:03:52,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 280.36 ms. Allocated memory is still 291.5 MB. Free memory was 229.1 MB in the beginning and 206.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 5.3 GB. [2018-07-21 06:03:52,350 INFO L168 Benchmark]: Boogie Preprocessor took 644.60 ms. Allocated memory was 291.5 MB in the beginning and 445.6 MB in the end (delta: 154.1 MB). Free memory was 206.2 MB in the beginning and 368.2 MB in the end (delta: -161.9 MB). Peak memory consumption was 19.2 MB. Max. memory is 5.3 GB. [2018-07-21 06:03:52,351 INFO L168 Benchmark]: RCFGBuilder took 9149.43 ms. Allocated memory was 445.6 MB in the beginning and 551.0 MB in the end (delta: 105.4 MB). Free memory was 368.2 MB in the beginning and 230.5 MB in the end (delta: 137.7 MB). Peak memory consumption was 243.0 MB. Max. memory is 5.3 GB. [2018-07-21 06:03:52,352 INFO L168 Benchmark]: TraceAbstraction took 209534.83 ms. Allocated memory was 551.0 MB in the beginning and 2.5 GB in the end (delta: 1.9 GB). Free memory was 230.5 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 308.1 MB. Max. memory is 5.3 GB. [2018-07-21 06:03:52,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 291.5 MB. Free memory is still 256.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2641.62 ms. Allocated memory is still 291.5 MB. Free memory was 227.7 MB in the beginning and 229.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 81.3 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 280.36 ms. Allocated memory is still 291.5 MB. Free memory was 229.1 MB in the beginning and 206.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 644.60 ms. Allocated memory was 291.5 MB in the beginning and 445.6 MB in the end (delta: 154.1 MB). Free memory was 206.2 MB in the beginning and 368.2 MB in the end (delta: -161.9 MB). Peak memory consumption was 19.2 MB. Max. memory is 5.3 GB. * RCFGBuilder took 9149.43 ms. Allocated memory was 445.6 MB in the beginning and 551.0 MB in the end (delta: 105.4 MB). Free memory was 368.2 MB in the beginning and 230.5 MB in the end (delta: 137.7 MB). Peak memory consumption was 243.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 209534.83 ms. Allocated memory was 551.0 MB in the beginning and 2.5 GB in the end (delta: 1.9 GB). Free memory was 230.5 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 308.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 33). Cancelled while BasicCegarLoop was constructing difference of abstraction (8087states) and interpolant automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (149 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 209.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 139.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1243 SDtfs, 11609 SDslu, 581 SDs, 0 SdLazy, 18962 SolverSat, 6033 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 99.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 479 GetRequests, 362 SyntacticMatches, 76 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8087occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 45.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9954029249612095 AbsIntWeakeningRatio, 0.10478359908883828 AbsIntAvgWeakeningVarsNumRemoved, 31.979498861047837 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 154 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 760 NumberOfCodeBlocks, 760 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 754 ConstructedInterpolants, 0 QuantifiedInterpolants, 1363524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 94/160 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/Problem18_label57_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_06-03-52-377.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem18_label57_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_06-03-52-377.csv Completed graceful shutdown