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/Problem13_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 03:29:34,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 03:29:34,873 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 03:29:34,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 03:29:34,886 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 03:29:34,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 03:29:34,888 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 03:29:34,893 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 03:29:34,895 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 03:29:34,895 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 03:29:34,896 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 03:29:34,896 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 03:29:34,897 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 03:29:34,898 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 03:29:34,900 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 03:29:34,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 03:29:34,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 03:29:34,903 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 03:29:34,905 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 03:29:34,906 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 03:29:34,907 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 03:29:34,908 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 03:29:34,911 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 03:29:34,918 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 03:29:34,933 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 03:29:34,933 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 03:29:34,934 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 03:29:34,934 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 03:29:34,935 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 03:29:34,935 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 03:29:34,935 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 03:29:34,935 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 03:29:34,935 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 03:29:34,936 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 03:29:34,936 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 03:29:34,936 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 03:29:34,937 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 03:29:34,937 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 03:29:34,937 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 03:29:34,937 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 03:29:34,937 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 03:29:34,938 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 03:29:34,938 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 03:29:34,938 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 03:29:34,938 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 03:29:34,938 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 03:29:34,939 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 03:29:34,939 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 03:29:34,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 03:29:34,939 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 03:29:34,939 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 03:29:34,939 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 03:29:34,940 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 03:29:34,942 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 03:29:34,942 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 03:29:34,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 03:29:34,942 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 03:29:34,943 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 03:29:34,943 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 03:29:34,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 03:29:35,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 03:29:35,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 03:29:35,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 03:29:35,026 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 03:29:35,027 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label51_false-unreach-call.c [2018-07-21 03:29:35,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5138456/2557de6b000e48d29c917ee013615528/FLAGc883da9d5 [2018-07-21 03:29:35,971 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 03:29:35,974 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label51_false-unreach-call.c [2018-07-21 03:29:36,038 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5138456/2557de6b000e48d29c917ee013615528/FLAGc883da9d5 [2018-07-21 03:29:36,059 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5138456/2557de6b000e48d29c917ee013615528 [2018-07-21 03:29:36,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 03:29:36,077 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 03:29:36,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 03:29:36,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 03:29:36,088 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 03:29:36,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:29:36" (1/1) ... [2018-07-21 03:29:36,092 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 03:29:36, skipping insertion in model container [2018-07-21 03:29:36,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:29:36" (1/1) ... [2018-07-21 03:29:36,531 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 03:29:37,921 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:29:37,939 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 03:29:38,923 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:29:39,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39 WrapperNode [2018-07-21 03:29:39,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 03:29:39,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 03:29:39,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 03:29:39,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 03:29:39,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:39,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:39,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 03:29:39,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 03:29:39,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 03:29:39,720 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 03:29:39,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:39,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:39,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:39,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:40,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:40,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:40,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (1/1) ... [2018-07-21 03:29:40,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 03:29:40,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 03:29:40,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 03:29:40,926 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 03:29:40,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (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 03:29:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 03:29:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 03:29:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 03:29:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 03:29:40,996 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 03:29:40,996 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 03:29:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 03:29:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 03:29:40,997 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 03:29:40,997 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 03:29:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 03:29:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 03:29:40,998 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 03:29:40,998 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 03:29:52,816 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 03:29:52,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:29:52 BoogieIcfgContainer [2018-07-21 03:29:52,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 03:29:52,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 03:29:52,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 03:29:52,827 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 03:29:52,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:29:36" (1/3) ... [2018-07-21 03:29:52,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f477595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:29:52, skipping insertion in model container [2018-07-21 03:29:52,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:29:39" (2/3) ... [2018-07-21 03:29:52,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f477595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:29:52, skipping insertion in model container [2018-07-21 03:29:52,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:29:52" (3/3) ... [2018-07-21 03:29:52,831 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label51_false-unreach-call.c [2018-07-21 03:29:52,840 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 03:29:52,848 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 03:29:52,912 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 03:29:52,913 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 03:29:52,913 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 03:29:52,914 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 03:29:52,914 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 03:29:52,914 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 03:29:52,914 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 03:29:52,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 03:29:52,914 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 03:29:52,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-21 03:29:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-21 03:29:52,976 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:29:52,978 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] [2018-07-21 03:29:52,978 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 03:29:52,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1312513001, now seen corresponding path program 1 times [2018-07-21 03:29:52,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:29:53,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:29:53,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:29:53,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:29:53,042 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:29:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:29:53,492 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 03:29:53,494 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:29:53,495 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 03:29:53,495 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:29:53,504 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 03:29:53,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 03:29:53,537 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:29:53,545 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-07-21 03:30:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:30:09,370 INFO L93 Difference]: Finished difference Result 4065 states and 7606 transitions. [2018-07-21 03:30:09,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 03:30:09,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-07-21 03:30:09,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:30:09,439 INFO L225 Difference]: With dead ends: 4065 [2018-07-21 03:30:09,439 INFO L226 Difference]: Without dead ends: 2939 [2018-07-21 03:30:09,457 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:30:09,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2018-07-21 03:30:09,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1972. [2018-07-21 03:30:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1972 states. [2018-07-21 03:30:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3594 transitions. [2018-07-21 03:30:09,683 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 3594 transitions. Word has length 31 [2018-07-21 03:30:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:30:09,683 INFO L471 AbstractCegarLoop]: Abstraction has 1972 states and 3594 transitions. [2018-07-21 03:30:09,684 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 03:30:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 3594 transitions. [2018-07-21 03:30:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-21 03:30:09,692 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:30:09,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:09,693 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 03:30:09,693 INFO L82 PathProgramCache]: Analyzing trace with hash 759539861, now seen corresponding path program 1 times [2018-07-21 03:30:09,694 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:30:09,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:30:09,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:30:09,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:30:09,697 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:30:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:30:10,129 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:30:10,129 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:30:10,130 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 03:30:10,130 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:30:10,132 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 03:30:10,132 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 03:30:10,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 03:30:10,133 INFO L87 Difference]: Start difference. First operand 1972 states and 3594 transitions. Second operand 6 states. [2018-07-21 03:30:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:30:27,365 INFO L93 Difference]: Finished difference Result 7235 states and 13612 transitions. [2018-07-21 03:30:27,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:30:27,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-21 03:30:27,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:30:27,406 INFO L225 Difference]: With dead ends: 7235 [2018-07-21 03:30:27,407 INFO L226 Difference]: Without dead ends: 5269 [2018-07-21 03:30:27,419 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 03:30:27,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2018-07-21 03:30:27,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 5237. [2018-07-21 03:30:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5237 states. [2018-07-21 03:30:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 8453 transitions. [2018-07-21 03:30:27,628 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 8453 transitions. Word has length 104 [2018-07-21 03:30:27,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:30:27,629 INFO L471 AbstractCegarLoop]: Abstraction has 5237 states and 8453 transitions. [2018-07-21 03:30:27,630 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 03:30:27,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 8453 transitions. [2018-07-21 03:30:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-21 03:30:27,641 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:30:27,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:27,642 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 03:30:27,642 INFO L82 PathProgramCache]: Analyzing trace with hash -637131380, now seen corresponding path program 1 times [2018-07-21 03:30:27,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:30:27,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:30:27,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:30:27,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:30:27,644 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:30:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:30:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:30:28,073 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:30:28,073 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 03:30:28,073 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:30:28,075 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 03:30:28,075 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 03:30:28,075 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 03:30:28,075 INFO L87 Difference]: Start difference. First operand 5237 states and 8453 transitions. Second operand 5 states. [2018-07-21 03:30:43,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:30:43,499 INFO L93 Difference]: Finished difference Result 15747 states and 26208 transitions. [2018-07-21 03:30:43,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:30:43,500 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-07-21 03:30:43,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:30:43,559 INFO L225 Difference]: With dead ends: 15747 [2018-07-21 03:30:43,560 INFO L226 Difference]: Without dead ends: 10516 [2018-07-21 03:30:43,581 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 03:30:43,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10516 states. [2018-07-21 03:30:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10516 to 10312. [2018-07-21 03:30:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10312 states. [2018-07-21 03:30:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10312 states to 10312 states and 15545 transitions. [2018-07-21 03:30:43,957 INFO L78 Accepts]: Start accepts. Automaton has 10312 states and 15545 transitions. Word has length 133 [2018-07-21 03:30:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:30:43,957 INFO L471 AbstractCegarLoop]: Abstraction has 10312 states and 15545 transitions. [2018-07-21 03:30:43,957 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 03:30:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 10312 states and 15545 transitions. [2018-07-21 03:30:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-21 03:30:43,963 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:30:43,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:43,964 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 03:30:43,964 INFO L82 PathProgramCache]: Analyzing trace with hash -574683116, now seen corresponding path program 1 times [2018-07-21 03:30:43,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:30:43,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:30:43,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:30:43,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:30:43,965 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:30:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:30:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:30:44,261 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:30:44,261 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 03:30:44,261 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:30:44,261 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 03:30:44,261 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 03:30:44,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 03:30:44,262 INFO L87 Difference]: Start difference. First operand 10312 states and 15545 transitions. Second operand 6 states. [2018-07-21 03:30:53,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:30:53,462 INFO L93 Difference]: Finished difference Result 32707 states and 52167 transitions. [2018-07-21 03:30:53,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 03:30:53,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-07-21 03:30:53,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:30:53,582 INFO L225 Difference]: With dead ends: 32707 [2018-07-21 03:30:53,582 INFO L226 Difference]: Without dead ends: 22401 [2018-07-21 03:30:53,643 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 03:30:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22401 states. [2018-07-21 03:30:54,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22401 to 22142. [2018-07-21 03:30:54,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22142 states. [2018-07-21 03:30:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22142 states to 22142 states and 32558 transitions. [2018-07-21 03:30:54,355 INFO L78 Accepts]: Start accepts. Automaton has 22142 states and 32558 transitions. Word has length 137 [2018-07-21 03:30:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:30:54,355 INFO L471 AbstractCegarLoop]: Abstraction has 22142 states and 32558 transitions. [2018-07-21 03:30:54,355 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 03:30:54,356 INFO L276 IsEmpty]: Start isEmpty. Operand 22142 states and 32558 transitions. [2018-07-21 03:30:54,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-21 03:30:54,359 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:30:54,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:54,360 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 03:30:54,360 INFO L82 PathProgramCache]: Analyzing trace with hash -645623320, now seen corresponding path program 1 times [2018-07-21 03:30:54,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:30:54,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:30:54,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:30:54,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:30:54,364 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:30:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:30:54,622 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:30:54,622 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:30:54,622 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 03:30:54,622 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:30:54,623 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 03:30:54,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 03:30:54,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:30:54,623 INFO L87 Difference]: Start difference. First operand 22142 states and 32558 transitions. Second operand 4 states. [2018-07-21 03:31:03,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:31:03,073 INFO L93 Difference]: Finished difference Result 63113 states and 98641 transitions. [2018-07-21 03:31:03,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 03:31:03,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2018-07-21 03:31:03,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:31:03,248 INFO L225 Difference]: With dead ends: 63113 [2018-07-21 03:31:03,248 INFO L226 Difference]: Without dead ends: 40977 [2018-07-21 03:31:03,314 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:31:03,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40977 states. [2018-07-21 03:31:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40977 to 40940. [2018-07-21 03:31:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40940 states. [2018-07-21 03:31:04,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40940 states to 40940 states and 59463 transitions. [2018-07-21 03:31:04,419 INFO L78 Accepts]: Start accepts. Automaton has 40940 states and 59463 transitions. Word has length 147 [2018-07-21 03:31:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:31:04,420 INFO L471 AbstractCegarLoop]: Abstraction has 40940 states and 59463 transitions. [2018-07-21 03:31:04,420 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 03:31:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 40940 states and 59463 transitions. [2018-07-21 03:31:04,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-07-21 03:31:04,434 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:31:04,434 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:31:04,434 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 03:31:04,435 INFO L82 PathProgramCache]: Analyzing trace with hash 473541804, now seen corresponding path program 1 times [2018-07-21 03:31:04,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:31:04,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:31:04,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:31:04,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:31:04,436 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:31:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:31:04,866 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 48 proven. 102 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 03:31:04,866 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:31:04,866 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 03:31:04,867 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-07-21 03:31:04,870 INFO L201 CegarAbsIntRunner]: [0], [1], [2631], [2635], [2641], [2645], [2647], [2652], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2799], [2801], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3124], [3132], [3140], [3145], [3149], [3153], [3157], [3161], [3172], [3176], [3180], [3184], [3188], [3192], [3203], [3207], [3211], [3215], [3219], [3223], [3227], [3231], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3313], [3314], [3318], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3357], [3360], [3365], [3367], [4262], [4265], [4266], [4267], [4271], [4272] [2018-07-21 03:31:04,984 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 03:31:04,985 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 03:31:19,794 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 03:31:19,796 INFO L272 AbstractInterpreter]: Visited 122 different actions 122 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 03:31:19,809 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 03:31:31,612 INFO L232 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 71.03% of their original sizes. [2018-07-21 03:31:31,612 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 03:31:32,580 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 03:31:32,582 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 03:31:32,582 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-07-21 03:31:32,582 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:31:32,583 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 03:31:32,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 03:31:32,583 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 03:31:32,583 INFO L87 Difference]: Start difference. First operand 40940 states and 59463 transitions. Second operand 8 states. [2018-07-21 03:32:09,087 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 03:32:55,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:32:55,779 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 03:32:55,786 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 03:32:55,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:32:55 BoogieIcfgContainer [2018-07-21 03:32:55,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 03:32:55,787 INFO L168 Benchmark]: Toolchain (without parser) took 199716.96 ms. Allocated memory was 306.7 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 236.3 MB in the beginning and 572.9 MB in the end (delta: -336.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-07-21 03:32:55,789 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 03:32:55,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3144.00 ms. Allocated memory was 306.7 MB in the beginning and 379.6 MB in the end (delta: 72.9 MB). Free memory was 234.2 MB in the beginning and 184.0 MB in the end (delta: 50.2 MB). Peak memory consumption was 123.1 MB. Max. memory is 5.3 GB. [2018-07-21 03:32:55,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 496.69 ms. Allocated memory was 379.6 MB in the beginning and 390.6 MB in the end (delta: 11.0 MB). Free memory was 184.0 MB in the beginning and 261.5 MB in the end (delta: -77.5 MB). Peak memory consumption was 90.6 MB. Max. memory is 5.3 GB. [2018-07-21 03:32:55,792 INFO L168 Benchmark]: Boogie Preprocessor took 1205.62 ms. Allocated memory was 390.6 MB in the beginning and 621.8 MB in the end (delta: 231.2 MB). Free memory was 261.5 MB in the beginning and 467.7 MB in the end (delta: -206.3 MB). Peak memory consumption was 43.6 MB. Max. memory is 5.3 GB. [2018-07-21 03:32:55,792 INFO L168 Benchmark]: RCFGBuilder took 11891.85 ms. Allocated memory was 621.8 MB in the beginning and 909.1 MB in the end (delta: 287.3 MB). Free memory was 467.7 MB in the beginning and 583.9 MB in the end (delta: -116.2 MB). Peak memory consumption was 334.7 MB. Max. memory is 5.3 GB. [2018-07-21 03:32:55,793 INFO L168 Benchmark]: TraceAbstraction took 182968.02 ms. Allocated memory was 909.1 MB in the beginning and 2.6 GB in the end (delta: 1.7 GB). Free memory was 583.9 MB in the beginning and 572.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-07-21 03:32:55,797 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3144.00 ms. Allocated memory was 306.7 MB in the beginning and 379.6 MB in the end (delta: 72.9 MB). Free memory was 234.2 MB in the beginning and 184.0 MB in the end (delta: 50.2 MB). Peak memory consumption was 123.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 496.69 ms. Allocated memory was 379.6 MB in the beginning and 390.6 MB in the end (delta: 11.0 MB). Free memory was 184.0 MB in the beginning and 261.5 MB in the end (delta: -77.5 MB). Peak memory consumption was 90.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1205.62 ms. Allocated memory was 390.6 MB in the beginning and 621.8 MB in the end (delta: 231.2 MB). Free memory was 261.5 MB in the beginning and 467.7 MB in the end (delta: -206.3 MB). Peak memory consumption was 43.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11891.85 ms. Allocated memory was 621.8 MB in the beginning and 909.1 MB in the end (delta: 287.3 MB). Free memory was 467.7 MB in the beginning and 583.9 MB in the end (delta: -116.2 MB). Peak memory consumption was 334.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 182968.02 ms. Allocated memory was 909.1 MB in the beginning and 2.6 GB in the end (delta: 1.7 GB). Free memory was 583.9 MB in the beginning and 572.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 84). Cancelled while BasicCegarLoop was constructing difference of abstraction (40940states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (1763 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 182.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 150.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2508 SDtfs, 16805 SDslu, 2334 SDs, 0 SdLazy, 27598 SolverSat, 8312 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 117.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 298 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40940occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9963701923076922 AbsIntWeakeningRatio, 0.109375 AbsIntAvgWeakeningVarsNumRemoved, 36.0390625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 1499 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 381821 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 149/251 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/Problem13_label51_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_03-32-55-816.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label51_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_03-32-55-816.csv Completed graceful shutdown