java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label26_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-07 12:12:24,958 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-07 12:12:24,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-07 12:12:24,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-07 12:12:24,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-07 12:12:24,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-07 12:12:24,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-07 12:12:24,985 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-07 12:12:24,987 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-07 12:12:24,988 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-07 12:12:24,990 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-07 12:12:24,991 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-07 12:12:24,992 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-07 12:12:24,994 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-07 12:12:25,002 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-07 12:12:25,004 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-07 12:12:25,004 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-07 12:12:25,006 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-07 12:12:25,008 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-07 12:12:25,009 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-07 12:12:25,010 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-07 12:12:25,011 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-07 12:12:25,013 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-07 12:12:25,013 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-07 12:12:25,014 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-07 12:12:25,014 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-07 12:12:25,015 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-07 12:12:25,016 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-07 12:12:25,017 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-07 12:12:25,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-07 12:12:25,020 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-07 12:12:25,020 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-07 12:12:25,021 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-07 12:12:25,021 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-07 12:12:25,022 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-07 12:12:25,022 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-07 12:12:25,023 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-08-07 12:12:25,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-07 12:12:25,038 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-07 12:12:25,038 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-07 12:12:25,039 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-07 12:12:25,039 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-07 12:12:25,039 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-07 12:12:25,039 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-07 12:12:25,039 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-07 12:12:25,040 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-07 12:12:25,040 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-07 12:12:25,040 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-07 12:12:25,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-07 12:12:25,041 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-07 12:12:25,041 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-07 12:12:25,041 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-07 12:12:25,041 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-07 12:12:25,042 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-07 12:12:25,042 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-07 12:12:25,042 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-07 12:12:25,042 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-07 12:12:25,042 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-07 12:12:25,043 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-07 12:12:25,043 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-07 12:12:25,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 12:12:25,043 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-07 12:12:25,043 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-07 12:12:25,044 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-07 12:12:25,044 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-08-07 12:12:25,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-07 12:12:25,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-07 12:12:25,044 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-07 12:12:25,045 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-07 12:12:25,045 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-07 12:12:25,095 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-07 12:12:25,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-07 12:12:25,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-07 12:12:25,117 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-07 12:12:25,118 INFO L276 PluginConnector]: CDTParser initialized [2018-08-07 12:12:25,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label26_true-unreach-call.c [2018-08-07 12:12:25,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d28508176/7b501214c8e7413b8820adc6d163205e/FLAG5d0b7cd9b [2018-08-07 12:12:25,784 INFO L276 CDTParser]: Found 1 translation units. [2018-08-07 12:12:25,785 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label26_true-unreach-call.c [2018-08-07 12:12:25,808 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d28508176/7b501214c8e7413b8820adc6d163205e/FLAG5d0b7cd9b [2018-08-07 12:12:25,823 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d28508176/7b501214c8e7413b8820adc6d163205e [2018-08-07 12:12:25,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-07 12:12:25,834 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-07 12:12:25,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-07 12:12:25,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-07 12:12:25,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-07 12:12:25,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 12:12:25" (1/1) ... [2018-08-07 12:12:25,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de2aaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:25, skipping insertion in model container [2018-08-07 12:12:25,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 12:12:25" (1/1) ... [2018-08-07 12:12:26,111 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-07 12:12:26,528 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 12:12:26,548 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-07 12:12:26,729 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 12:12:26,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26 WrapperNode [2018-08-07 12:12:26,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-07 12:12:26,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-07 12:12:26,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-07 12:12:26,803 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-07 12:12:26,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:26,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:26,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-07 12:12:26,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-07 12:12:26,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-07 12:12:26,983 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-07 12:12:26,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:26,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:27,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:27,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:27,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:27,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:27,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... [2018-08-07 12:12:27,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-07 12:12:27,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-07 12:12:27,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-07 12:12:27,397 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-07 12:12:27,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (1/1) ... No working directory specified, using /storage/repos/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 [2018-08-07 12:12:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-07 12:12:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-07 12:12:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-07 12:12:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-07 12:12:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-07 12:12:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-07 12:12:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-07 12:12:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-07 12:12:32,733 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-07 12:12:32,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 12:12:32 BoogieIcfgContainer [2018-08-07 12:12:32,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-07 12:12:32,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-07 12:12:32,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-07 12:12:32,739 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-07 12:12:32,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.08 12:12:25" (1/3) ... [2018-08-07 12:12:32,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bfae12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 12:12:32, skipping insertion in model container [2018-08-07 12:12:32,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:12:26" (2/3) ... [2018-08-07 12:12:32,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bfae12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 12:12:32, skipping insertion in model container [2018-08-07 12:12:32,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 12:12:32" (3/3) ... [2018-08-07 12:12:32,743 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label26_true-unreach-call.c [2018-08-07 12:12:32,754 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-07 12:12:32,764 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-07 12:12:32,818 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-07 12:12:32,819 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-07 12:12:32,819 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-07 12:12:32,819 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-07 12:12:32,820 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-07 12:12:32,820 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-07 12:12:32,820 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-07 12:12:32,820 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-07 12:12:32,820 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-07 12:12:32,851 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-08-07 12:12:32,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-08-07 12:12:32,860 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:12:32,861 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:12:32,863 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:12:32,869 INFO L82 PathProgramCache]: Analyzing trace with hash -242196732, now seen corresponding path program 1 times [2018-08-07 12:12:32,872 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:12:32,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:32,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:12:32,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:32,928 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:12:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:12:33,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:12:33,301 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:12:33,301 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-08-07 12:12:33,301 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:12:33,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-07 12:12:33,323 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-07 12:12:33,324 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-07 12:12:33,327 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-08-07 12:12:37,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:12:37,305 INFO L93 Difference]: Finished difference Result 996 states and 1776 transitions. [2018-08-07 12:12:37,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-07 12:12:37,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-08-07 12:12:37,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:12:37,333 INFO L225 Difference]: With dead ends: 996 [2018-08-07 12:12:37,334 INFO L226 Difference]: Without dead ends: 697 [2018-08-07 12:12:37,342 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-07 12:12:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-08-07 12:12:37,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 481. [2018-08-07 12:12:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-08-07 12:12:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 742 transitions. [2018-08-07 12:12:37,467 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 742 transitions. Word has length 46 [2018-08-07 12:12:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:12:37,468 INFO L480 AbstractCegarLoop]: Abstraction has 481 states and 742 transitions. [2018-08-07 12:12:37,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-07 12:12:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 742 transitions. [2018-08-07 12:12:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-08-07 12:12:37,480 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:12:37,480 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-07 12:12:37,481 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:12:37,481 INFO L82 PathProgramCache]: Analyzing trace with hash 629696051, now seen corresponding path program 1 times [2018-08-07 12:12:37,481 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:12:37,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:37,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:12:37,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:37,484 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:12:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:12:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:12:37,894 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:12:37,894 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 12:12:37,894 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:12:37,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 12:12:37,897 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 12:12:37,897 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 12:12:37,898 INFO L87 Difference]: Start difference. First operand 481 states and 742 transitions. Second operand 6 states. [2018-08-07 12:12:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:12:42,210 INFO L93 Difference]: Finished difference Result 1725 states and 2777 transitions. [2018-08-07 12:12:42,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 12:12:42,215 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2018-08-07 12:12:42,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:12:42,227 INFO L225 Difference]: With dead ends: 1725 [2018-08-07 12:12:42,227 INFO L226 Difference]: Without dead ends: 1250 [2018-08-07 12:12:42,234 INFO L603 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 [2018-08-07 12:12:42,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-08-07 12:12:42,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1231. [2018-08-07 12:12:42,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-08-07 12:12:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1812 transitions. [2018-08-07 12:12:42,316 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1812 transitions. Word has length 119 [2018-08-07 12:12:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:12:42,317 INFO L480 AbstractCegarLoop]: Abstraction has 1231 states and 1812 transitions. [2018-08-07 12:12:42,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 12:12:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1812 transitions. [2018-08-07 12:12:42,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-08-07 12:12:42,329 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:12:42,329 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-07 12:12:42,329 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:12:42,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2062555976, now seen corresponding path program 1 times [2018-08-07 12:12:42,330 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:12:42,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:42,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:12:42,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:42,331 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:12:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:12:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:12:42,534 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:12:42,534 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-08-07 12:12:42,534 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:12:42,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-07 12:12:42,535 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-07 12:12:42,535 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-07 12:12:42,535 INFO L87 Difference]: Start difference. First operand 1231 states and 1812 transitions. Second operand 4 states. [2018-08-07 12:12:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:12:45,509 INFO L93 Difference]: Finished difference Result 3236 states and 4910 transitions. [2018-08-07 12:12:45,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-07 12:12:45,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2018-08-07 12:12:45,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:12:45,524 INFO L225 Difference]: With dead ends: 3236 [2018-08-07 12:12:45,525 INFO L226 Difference]: Without dead ends: 2011 [2018-08-07 12:12:45,533 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-08-07 12:12:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2018-08-07 12:12:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1998. [2018-08-07 12:12:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2018-08-07 12:12:45,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2881 transitions. [2018-08-07 12:12:45,596 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2881 transitions. Word has length 120 [2018-08-07 12:12:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:12:45,597 INFO L480 AbstractCegarLoop]: Abstraction has 1998 states and 2881 transitions. [2018-08-07 12:12:45,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-07 12:12:45,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2881 transitions. [2018-08-07 12:12:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-08-07 12:12:45,601 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:12:45,601 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-07 12:12:45,601 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:12:45,601 INFO L82 PathProgramCache]: Analyzing trace with hash -567234993, now seen corresponding path program 1 times [2018-08-07 12:12:45,602 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:12:45,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:45,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:12:45,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:45,603 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:12:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:12:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:12:46,086 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:12:46,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-08-07 12:12:46,086 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:12:46,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-08-07 12:12:46,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-08-07 12:12:46,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-08-07 12:12:46,087 INFO L87 Difference]: Start difference. First operand 1998 states and 2881 transitions. Second operand 7 states. [2018-08-07 12:12:52,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:12:52,546 INFO L93 Difference]: Finished difference Result 6270 states and 9578 transitions. [2018-08-07 12:12:52,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-08-07 12:12:52,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2018-08-07 12:12:52,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:12:52,579 INFO L225 Difference]: With dead ends: 6270 [2018-08-07 12:12:52,579 INFO L226 Difference]: Without dead ends: 4083 [2018-08-07 12:12:52,603 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-08-07 12:12:52,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2018-08-07 12:12:52,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 3571. [2018-08-07 12:12:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3571 states. [2018-08-07 12:12:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4930 transitions. [2018-08-07 12:12:52,759 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4930 transitions. Word has length 121 [2018-08-07 12:12:52,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:12:52,759 INFO L480 AbstractCegarLoop]: Abstraction has 3571 states and 4930 transitions. [2018-08-07 12:12:52,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-08-07 12:12:52,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4930 transitions. [2018-08-07 12:12:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-08-07 12:12:52,767 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:12:52,767 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:12:52,768 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:12:52,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1893502118, now seen corresponding path program 1 times [2018-08-07 12:12:52,768 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:12:52,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:52,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:12:52,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:12:52,769 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:12:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:12:53,286 WARN L170 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-08-07 12:12:53,897 WARN L170 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-08-07 12:12:54,041 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 82 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:12:54,042 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:12:54,042 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 12:12:54,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:12:54,055 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:12:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:12:54,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:12:56,343 WARN L170 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 1344 DAG size of output: 51 [2018-08-07 12:12:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 72 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:12:56,629 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:12:56,760 WARN L170 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-08-07 12:12:57,159 WARN L170 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-08-07 12:12:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-08-07 12:12:58,748 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-08-07 12:12:58,749 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [10, 9] total 18 [2018-08-07 12:12:58,749 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:12:58,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 12:12:58,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 12:12:58,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-08-07 12:12:58,751 INFO L87 Difference]: Start difference. First operand 3571 states and 4930 transitions. Second operand 3 states. [2018-08-07 12:13:00,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:13:00,445 INFO L93 Difference]: Finished difference Result 8540 states and 12410 transitions. [2018-08-07 12:13:00,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 12:13:00,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2018-08-07 12:13:00,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:13:00,474 INFO L225 Difference]: With dead ends: 8540 [2018-08-07 12:13:00,474 INFO L226 Difference]: Without dead ends: 4975 [2018-08-07 12:13:00,498 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 470 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-08-07 12:13:00,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2018-08-07 12:13:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 4967. [2018-08-07 12:13:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4967 states. [2018-08-07 12:13:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4967 states to 4967 states and 6849 transitions. [2018-08-07 12:13:00,630 INFO L78 Accepts]: Start accepts. Automaton has 4967 states and 6849 transitions. Word has length 238 [2018-08-07 12:13:00,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:13:00,631 INFO L480 AbstractCegarLoop]: Abstraction has 4967 states and 6849 transitions. [2018-08-07 12:13:00,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 12:13:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4967 states and 6849 transitions. [2018-08-07 12:13:00,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-08-07 12:13:00,644 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:13:00,644 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:13:00,644 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:13:00,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1062035334, now seen corresponding path program 1 times [2018-08-07 12:13:00,645 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:13:00,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:13:00,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:13:00,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:13:00,646 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:13:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:13:01,197 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:13:01,198 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:13:01,198 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 12:13:01,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:13:01,218 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:13:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:13:01,351 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:13:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-08-07 12:13:01,877 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:13:02,429 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-08-07 12:13:02,468 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-08-07 12:13:02,468 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-08-07 12:13:02,469 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:13:02,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-07 12:13:02,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-07 12:13:02,470 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-08-07 12:13:02,471 INFO L87 Difference]: Start difference. First operand 4967 states and 6849 transitions. Second operand 5 states. [2018-08-07 12:13:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:13:06,583 INFO L93 Difference]: Finished difference Result 14518 states and 21158 transitions. [2018-08-07 12:13:06,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-07 12:13:06,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2018-08-07 12:13:06,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:13:06,632 INFO L225 Difference]: With dead ends: 14518 [2018-08-07 12:13:06,632 INFO L226 Difference]: Without dead ends: 9557 [2018-08-07 12:13:06,660 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 502 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-08-07 12:13:06,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9557 states. [2018-08-07 12:13:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9557 to 9541. [2018-08-07 12:13:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9541 states. [2018-08-07 12:13:06,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9541 states to 9541 states and 13001 transitions. [2018-08-07 12:13:06,897 INFO L78 Accepts]: Start accepts. Automaton has 9541 states and 13001 transitions. Word has length 254 [2018-08-07 12:13:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:13:06,898 INFO L480 AbstractCegarLoop]: Abstraction has 9541 states and 13001 transitions. [2018-08-07 12:13:06,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-07 12:13:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 9541 states and 13001 transitions. [2018-08-07 12:13:06,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-08-07 12:13:06,918 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:13:06,919 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:13:06,919 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:13:06,919 INFO L82 PathProgramCache]: Analyzing trace with hash -551772721, now seen corresponding path program 1 times [2018-08-07 12:13:06,920 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:13:06,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:13:06,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:13:06,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:13:06,921 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:13:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:13:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:13:07,470 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:13:07,471 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 12:13:07,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:13:07,480 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:13:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:13:07,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:13:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-08-07 12:13:07,678 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:13:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-08-07 12:13:07,917 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-08-07 12:13:07,917 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2018-08-07 12:13:07,917 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:13:07,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 12:13:07,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 12:13:07,918 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-08-07 12:13:07,918 INFO L87 Difference]: Start difference. First operand 9541 states and 13001 transitions. Second operand 3 states. [2018-08-07 12:13:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:13:08,773 INFO L93 Difference]: Finished difference Result 19062 states and 26011 transitions. [2018-08-07 12:13:08,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 12:13:08,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 278 [2018-08-07 12:13:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:13:08,815 INFO L225 Difference]: With dead ends: 19062 [2018-08-07 12:13:08,815 INFO L226 Difference]: Without dead ends: 9527 [2018-08-07 12:13:08,838 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 552 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-08-07 12:13:08,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9527 states. [2018-08-07 12:13:09,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9527 to 9527. [2018-08-07 12:13:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9527 states. [2018-08-07 12:13:09,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9527 states to 9527 states and 12963 transitions. [2018-08-07 12:13:09,059 INFO L78 Accepts]: Start accepts. Automaton has 9527 states and 12963 transitions. Word has length 278 [2018-08-07 12:13:09,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:13:09,060 INFO L480 AbstractCegarLoop]: Abstraction has 9527 states and 12963 transitions. [2018-08-07 12:13:09,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 12:13:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 9527 states and 12963 transitions. [2018-08-07 12:13:09,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-08-07 12:13:09,081 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:13:09,081 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:13:09,082 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:13:09,082 INFO L82 PathProgramCache]: Analyzing trace with hash -167658321, now seen corresponding path program 1 times [2018-08-07 12:13:09,082 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:13:09,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:13:09,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:13:09,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:13:09,083 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:13:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:13:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 79 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-08-07 12:13:09,764 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:13:09,765 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 12:13:09,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:13:09,779 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:13:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:13:09,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:13:11,860 WARN L170 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 33 DAG size of output: 13 [2018-08-07 12:13:11,984 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 79 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:13:11,984 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:13:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:13:12,366 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:13:12,367 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 12:13:12,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:13:12,384 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:13:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:13:12,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:13:13,428 WARN L170 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-08-07 12:13:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 79 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:13:14,541 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:13:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:13:14,694 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 12:13:14,694 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 5, 8, 5] total 15 [2018-08-07 12:13:14,694 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 12:13:14,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-07 12:13:14,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-07 12:13:14,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=151, Unknown=2, NotChecked=0, Total=210 [2018-08-07 12:13:14,695 INFO L87 Difference]: Start difference. First operand 9527 states and 12963 transitions. Second operand 10 states. [2018-08-07 12:13:15,115 WARN L170 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-08-07 12:14:15,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:14:15,621 INFO L93 Difference]: Finished difference Result 27876 states and 44037 transitions. [2018-08-07 12:14:15,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-08-07 12:14:15,621 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 278 [2018-08-07 12:14:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:14:15,739 INFO L225 Difference]: With dead ends: 27876 [2018-08-07 12:14:15,739 INFO L226 Difference]: Without dead ends: 18355 [2018-08-07 12:14:15,804 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 1136 GetRequests, 1099 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=238, Invalid=744, Unknown=10, NotChecked=0, Total=992 [2018-08-07 12:14:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18355 states. [2018-08-07 12:14:16,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18355 to 17893. [2018-08-07 12:14:16,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17893 states. [2018-08-07 12:14:16,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17893 states to 17893 states and 24387 transitions. [2018-08-07 12:14:16,445 INFO L78 Accepts]: Start accepts. Automaton has 17893 states and 24387 transitions. Word has length 278 [2018-08-07 12:14:16,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:14:16,446 INFO L480 AbstractCegarLoop]: Abstraction has 17893 states and 24387 transitions. [2018-08-07 12:14:16,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-07 12:14:16,446 INFO L276 IsEmpty]: Start isEmpty. Operand 17893 states and 24387 transitions. [2018-08-07 12:14:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-08-07 12:14:16,482 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:14:16,483 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:14:16,483 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:14:16,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1610367822, now seen corresponding path program 1 times [2018-08-07 12:14:16,484 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:14:16,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:14:16,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:14:16,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:14:16,485 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:14:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:14:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:14:17,123 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:14:17,123 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 12:14:17,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:14:17,140 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:14:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:14:17,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:14:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-08-07 12:14:17,425 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:14:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-08-07 12:14:17,652 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-08-07 12:14:17,652 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-08-07 12:14:17,652 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:14:17,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-07 12:14:17,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-07 12:14:17,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-08-07 12:14:17,654 INFO L87 Difference]: Start difference. First operand 17893 states and 24387 transitions. Second operand 5 states. [2018-08-07 12:14:20,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:14:20,657 INFO L93 Difference]: Finished difference Result 46786 states and 65999 transitions. [2018-08-07 12:14:20,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-07 12:14:20,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 301 [2018-08-07 12:14:20,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:14:20,764 INFO L225 Difference]: With dead ends: 46786 [2018-08-07 12:14:20,764 INFO L226 Difference]: Without dead ends: 29279 [2018-08-07 12:14:20,842 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 596 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-08-07 12:14:20,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29279 states. [2018-08-07 12:14:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29279 to 29245. [2018-08-07 12:14:21,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29245 states. [2018-08-07 12:14:21,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29245 states to 29245 states and 38779 transitions. [2018-08-07 12:14:21,818 INFO L78 Accepts]: Start accepts. Automaton has 29245 states and 38779 transitions. Word has length 301 [2018-08-07 12:14:21,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:14:21,819 INFO L480 AbstractCegarLoop]: Abstraction has 29245 states and 38779 transitions. [2018-08-07 12:14:21,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-07 12:14:21,819 INFO L276 IsEmpty]: Start isEmpty. Operand 29245 states and 38779 transitions. [2018-08-07 12:14:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2018-08-07 12:14:21,893 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:14:21,894 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:14:21,894 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:14:21,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1904911545, now seen corresponding path program 1 times [2018-08-07 12:14:21,895 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:14:21,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:14:21,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:14:21,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:14:21,896 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:14:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:14:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 285 proven. 78 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-08-07 12:14:22,538 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:14:22,538 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 12:14:22,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:14:22,546 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:14:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:14:22,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:14:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 290 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-08-07 12:14:23,321 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:14:23,834 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 290 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-08-07 12:14:23,855 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:14:23,855 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 12:14:23,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:14:23,873 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:14:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:14:24,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:14:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 119 proven. 172 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-08-07 12:14:24,313 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:14:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 287 proven. 4 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-08-07 12:14:24,963 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 12:14:24,964 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 7, 8] total 21 [2018-08-07 12:14:24,964 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 12:14:24,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-07 12:14:24,966 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-07 12:14:24,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2018-08-07 12:14:24,966 INFO L87 Difference]: Start difference. First operand 29245 states and 38779 transitions. Second operand 11 states. [2018-08-07 12:14:33,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:14:33,012 INFO L93 Difference]: Finished difference Result 62560 states and 89393 transitions. [2018-08-07 12:14:33,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-08-07 12:14:33,012 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 335 [2018-08-07 12:14:33,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:14:33,150 INFO L225 Difference]: With dead ends: 62560 [2018-08-07 12:14:33,151 INFO L226 Difference]: Without dead ends: 33510 [2018-08-07 12:14:33,270 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 1388 GetRequests, 1333 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=649, Invalid=2003, Unknown=0, NotChecked=0, Total=2652 [2018-08-07 12:14:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33510 states. [2018-08-07 12:14:34,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33510 to 33134. [2018-08-07 12:14:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33134 states. [2018-08-07 12:14:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33134 states to 33134 states and 42184 transitions. [2018-08-07 12:14:34,463 INFO L78 Accepts]: Start accepts. Automaton has 33134 states and 42184 transitions. Word has length 335 [2018-08-07 12:14:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:14:34,463 INFO L480 AbstractCegarLoop]: Abstraction has 33134 states and 42184 transitions. [2018-08-07 12:14:34,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-07 12:14:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 33134 states and 42184 transitions. [2018-08-07 12:14:34,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2018-08-07 12:14:34,624 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:14:34,625 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:14:34,625 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 12:14:34,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1969656495, now seen corresponding path program 1 times [2018-08-07 12:14:34,625 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:14:34,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:14:34,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:14:34,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:14:34,626 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:14:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:14:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-08-07 12:14:35,235 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:14:35,235 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 12:14:35,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:14:35,243 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:14:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:14:35,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:14:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2018-08-07 12:14:35,889 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:14:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2018-08-07 12:14:36,493 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:14:36,493 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 12:14:36,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:14:36,509 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:14:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:14:36,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:14:37,591 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2018-08-07 12:14:37,591 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:14:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2018-08-07 12:14:38,036 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 12:14:38,036 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5, 5, 5] total 18 [2018-08-07 12:14:38,036 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 12:14:38,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-07 12:14:38,037 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-07 12:14:38,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2018-08-07 12:14:38,038 INFO L87 Difference]: Start difference. First operand 33134 states and 42184 transitions. Second operand 12 states. [2018-08-07 12:14:59,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:14:59,750 INFO L93 Difference]: Finished difference Result 90394 states and 128932 transitions. [2018-08-07 12:14:59,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-08-07 12:14:59,750 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 465 [2018-08-07 12:14:59,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:14:59,751 INFO L225 Difference]: With dead ends: 90394 [2018-08-07 12:14:59,751 INFO L226 Difference]: Without dead ends: 0 [2018-08-07 12:15:00,096 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 1986 GetRequests, 1907 SyntacticMatches, 4 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1816 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=900, Invalid=4952, Unknown=0, NotChecked=0, Total=5852 [2018-08-07 12:15:00,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-08-07 12:15:00,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-08-07 12:15:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-08-07 12:15:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-08-07 12:15:00,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 465 [2018-08-07 12:15:00,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:15:00,099 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-08-07 12:15:00,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-07 12:15:00,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-08-07 12:15:00,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-08-07 12:15:00,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-08-07 12:15:00,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:00,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:00,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:00,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:00,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:00,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:01,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:02,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:03,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:03,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:03,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:03,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:03,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:03,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:03,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:03,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,451 WARN L170 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 683 DAG size of output: 533 [2018-08-07 12:15:04,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:04,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:05,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 12:15:06,698 WARN L170 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 683 DAG size of output: 533 [2018-08-07 12:15:07,029 WARN L170 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 38 [2018-08-07 12:15:10,000 WARN L170 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 446 DAG size of output: 81 [2018-08-07 12:15:58,880 WARN L170 SmtUtils]: Spent 48.87 s on a formula simplification. DAG size of input: 545 DAG size of output: 62 Received shutdown request... [2018-08-07 12:16:35,712 WARN L178 SmtUtils]: Removed 3 from assertion stack [2018-08-07 12:16:35,713 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-08-07 12:16:35,714 INFO L168 Benchmark]: Toolchain (without parser) took 249881.20 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-08-07 12:16:35,716 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-07 12:16:35,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 967.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-08-07 12:16:35,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 179.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-08-07 12:16:35,718 INFO L168 Benchmark]: Boogie Preprocessor took 413.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 816.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -938.6 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. [2018-08-07 12:16:35,719 INFO L168 Benchmark]: RCFGBuilder took 5337.16 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 188.7 MB). Peak memory consumption was 188.7 MB. Max. memory is 7.1 GB. [2018-08-07 12:16:35,720 INFO L168 Benchmark]: TraceAbstraction took 242978.25 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-08-07 12:16:35,728 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 967.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 179.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 413.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 816.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -938.6 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5337.16 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 188.7 MB). Peak memory consumption was 188.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242978.25 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 545. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label26_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-07_12-16-35-742.csv Completed graceful shutdown