java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 21:47:48,118 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 21:47:48,120 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 21:47:48,138 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 21:47:48,139 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 21:47:48,141 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 21:47:48,142 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 21:47:48,144 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 21:47:48,147 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 21:47:48,148 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 21:47:48,156 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 21:47:48,156 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 21:47:48,157 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 21:47:48,158 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 21:47:48,161 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 21:47:48,162 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 21:47:48,163 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 21:47:48,166 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 21:47:48,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 21:47:48,172 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 21:47:48,174 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 21:47:48,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 21:47:48,178 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 21:47:48,178 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 21:47:48,178 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 21:47:48,181 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 21:47:48,182 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 21:47:48,183 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 21:47:48,185 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 21:47:48,187 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 21:47:48,188 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 21:47:48,188 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 21:47:48,189 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 21:47:48,189 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 21:47:48,193 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 21:47:48,193 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 21:47:48,194 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 21:47:48,221 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 21:47:48,221 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 21:47:48,222 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 21:47:48,223 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 21:47:48,223 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 21:47:48,223 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 21:47:48,226 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 21:47:48,226 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 21:47:48,226 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 21:47:48,226 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 21:47:48,226 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 21:47:48,227 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 21:47:48,228 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 21:47:48,228 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 21:47:48,229 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 21:47:48,229 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 21:47:48,229 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 21:47:48,229 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 21:47:48,229 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 21:47:48,230 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 21:47:48,230 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 21:47:48,230 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 21:47:48,230 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 21:47:48,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 21:47:48,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 21:47:48,232 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 21:47:48,232 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 21:47:48,232 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 21:47:48,232 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 21:47:48,233 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 21:47:48,233 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 21:47:48,233 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 21:47:48,233 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 21:47:48,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 21:47:48,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 21:47:48,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 21:47:48,325 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 21:47:48,326 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 21:47:48,326 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c [2018-07-23 21:47:48,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300d2720f/cfb736c5a0a44cf88b47c135f6df4554/FLAG8f2987490 [2018-07-23 21:47:48,934 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 21:47:48,935 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label02_true-unreach-call.c [2018-07-23 21:47:48,954 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300d2720f/cfb736c5a0a44cf88b47c135f6df4554/FLAG8f2987490 [2018-07-23 21:47:48,973 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300d2720f/cfb736c5a0a44cf88b47c135f6df4554 [2018-07-23 21:47:48,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 21:47:48,985 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 21:47:48,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 21:47:48,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 21:47:48,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 21:47:48,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 09:47:48" (1/1) ... [2018-07-23 21:47:48,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723032b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:48, skipping insertion in model container [2018-07-23 21:47:48,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 09:47:48" (1/1) ... [2018-07-23 21:47:49,198 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 21:47:49,471 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 21:47:49,486 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 21:47:49,624 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 21:47:49,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49 WrapperNode [2018-07-23 21:47:49,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 21:47:49,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 21:47:49,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 21:47:49,677 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 21:47:49,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:49,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:49,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 21:47:49,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 21:47:49,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 21:47:49,772 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 21:47:49,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:49,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:49,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:49,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:49,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:50,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:50,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (1/1) ... [2018-07-23 21:47:50,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 21:47:50,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 21:47:50,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 21:47:50,078 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 21:47:50,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (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 [2018-07-23 21:47:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 21:47:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 21:47:50,150 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 [2018-07-23 21:47:50,150 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 [2018-07-23 21:47:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 21:47:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 21:47:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 21:47:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 21:47:53,699 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 21:47:53,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 09:47:53 BoogieIcfgContainer [2018-07-23 21:47:53,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 21:47:53,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 21:47:53,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 21:47:53,716 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 21:47:53,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 09:47:48" (1/3) ... [2018-07-23 21:47:53,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea6d22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 09:47:53, skipping insertion in model container [2018-07-23 21:47:53,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:47:49" (2/3) ... [2018-07-23 21:47:53,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea6d22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 09:47:53, skipping insertion in model container [2018-07-23 21:47:53,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 09:47:53" (3/3) ... [2018-07-23 21:47:53,724 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label02_true-unreach-call.c [2018-07-23 21:47:53,736 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 21:47:53,751 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 21:47:53,825 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 21:47:53,826 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 21:47:53,826 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 21:47:53,827 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 21:47:53,827 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 21:47:53,827 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 21:47:53,829 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 21:47:53,829 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 21:47:53,829 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 21:47:53,872 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-07-23 21:47:53,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-07-23 21:47:53,894 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:47:53,895 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:47:53,895 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:47:53,901 INFO L82 PathProgramCache]: Analyzing trace with hash 417311892, now seen corresponding path program 1 times [2018-07-23 21:47:53,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:47:53,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:47:53,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:47:53,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:47:53,953 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:47:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:47:54,490 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-23 21:47:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:47:54,573 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:47:54,573 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 21:47:54,574 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:47:54,587 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 21:47:54,619 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 21:47:54,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 21:47:54,623 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-07-23 21:47:57,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:47:57,368 INFO L93 Difference]: Finished difference Result 737 states and 1298 transitions. [2018-07-23 21:47:57,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 21:47:57,371 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2018-07-23 21:47:57,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:47:57,399 INFO L225 Difference]: With dead ends: 737 [2018-07-23 21:47:57,399 INFO L226 Difference]: Without dead ends: 515 [2018-07-23 21:47:57,412 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 21:47:57,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-07-23 21:47:57,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2018-07-23 21:47:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2018-07-23 21:47:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 848 transitions. [2018-07-23 21:47:57,503 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 848 transitions. Word has length 66 [2018-07-23 21:47:57,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:47:57,504 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 848 transitions. [2018-07-23 21:47:57,505 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 21:47:57,505 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 848 transitions. [2018-07-23 21:47:57,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 21:47:57,515 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:47:57,516 INFO L353 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, 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] [2018-07-23 21:47:57,516 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:47:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1872316411, now seen corresponding path program 1 times [2018-07-23 21:47:57,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:47:57,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:47:57,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:47:57,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:47:57,519 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:47:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:47:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:47:57,916 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:47:57,917 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 21:47:57,917 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:47:57,919 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 21:47:57,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 21:47:57,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 21:47:57,920 INFO L87 Difference]: Start difference. First operand 515 states and 848 transitions. Second operand 6 states. [2018-07-23 21:48:00,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:48:00,962 INFO L93 Difference]: Finished difference Result 1863 states and 3251 transitions. [2018-07-23 21:48:00,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 21:48:00,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-07-23 21:48:00,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:48:00,985 INFO L225 Difference]: With dead ends: 1863 [2018-07-23 21:48:00,985 INFO L226 Difference]: Without dead ends: 1354 [2018-07-23 21:48:00,995 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 21:48:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2018-07-23 21:48:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1331. [2018-07-23 21:48:01,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1331 states. [2018-07-23 21:48:01,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2051 transitions. [2018-07-23 21:48:01,083 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2051 transitions. Word has length 141 [2018-07-23 21:48:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:48:01,084 INFO L471 AbstractCegarLoop]: Abstraction has 1331 states and 2051 transitions. [2018-07-23 21:48:01,084 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 21:48:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2051 transitions. [2018-07-23 21:48:01,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 21:48:01,098 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:48:01,098 INFO L353 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, 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] [2018-07-23 21:48:01,101 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:48:01,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1772740073, now seen corresponding path program 1 times [2018-07-23 21:48:01,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:48:01,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:48:01,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:48:01,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:48:01,104 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:48:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:48:01,465 WARN L169 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:48:01,728 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:48:01,729 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:48:01,729 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 21:48:01,729 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:48:01,730 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 21:48:01,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 21:48:01,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 21:48:01,731 INFO L87 Difference]: Start difference. First operand 1331 states and 2051 transitions. Second operand 6 states. [2018-07-23 21:48:07,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:48:07,866 INFO L93 Difference]: Finished difference Result 3512 states and 5693 transitions. [2018-07-23 21:48:07,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 21:48:07,869 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-07-23 21:48:07,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:48:07,885 INFO L225 Difference]: With dead ends: 3512 [2018-07-23 21:48:07,886 INFO L226 Difference]: Without dead ends: 2187 [2018-07-23 21:48:07,897 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 21:48:07,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2018-07-23 21:48:07,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2165. [2018-07-23 21:48:07,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2165 states. [2018-07-23 21:48:07,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 3178 transitions. [2018-07-23 21:48:07,983 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 3178 transitions. Word has length 143 [2018-07-23 21:48:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:48:07,984 INFO L471 AbstractCegarLoop]: Abstraction has 2165 states and 3178 transitions. [2018-07-23 21:48:07,984 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 21:48:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 3178 transitions. [2018-07-23 21:48:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 21:48:07,988 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:48:07,988 INFO L353 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, 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] [2018-07-23 21:48:07,988 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:48:07,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1246975752, now seen corresponding path program 1 times [2018-07-23 21:48:07,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:48:07,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:48:07,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:48:07,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:48:07,990 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:48:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:48:08,387 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:48:08,388 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:48:08,388 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-23 21:48:08,388 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:48:08,389 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 21:48:08,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 21:48:08,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-23 21:48:08,389 INFO L87 Difference]: Start difference. First operand 2165 states and 3178 transitions. Second operand 7 states. [2018-07-23 21:48:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:48:11,218 INFO L93 Difference]: Finished difference Result 5115 states and 7646 transitions. [2018-07-23 21:48:11,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 21:48:11,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2018-07-23 21:48:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:48:11,236 INFO L225 Difference]: With dead ends: 5115 [2018-07-23 21:48:11,236 INFO L226 Difference]: Without dead ends: 2160 [2018-07-23 21:48:11,253 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-07-23 21:48:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2160 states. [2018-07-23 21:48:11,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2160 to 2160. [2018-07-23 21:48:11,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2160 states. [2018-07-23 21:48:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2160 states to 2160 states and 3146 transitions. [2018-07-23 21:48:11,325 INFO L78 Accepts]: Start accepts. Automaton has 2160 states and 3146 transitions. Word has length 146 [2018-07-23 21:48:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:48:11,326 INFO L471 AbstractCegarLoop]: Abstraction has 2160 states and 3146 transitions. [2018-07-23 21:48:11,326 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 21:48:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2160 states and 3146 transitions. [2018-07-23 21:48:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 21:48:11,331 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:48:11,331 INFO L353 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, 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] [2018-07-23 21:48:11,331 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:48:11,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1562324559, now seen corresponding path program 1 times [2018-07-23 21:48:11,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:48:11,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:48:11,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:48:11,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:48:11,336 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:48:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:48:11,600 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:48:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 21:48:11,835 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:48:11,836 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:48:11,837 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-07-23 21:48:11,839 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [538], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:48:11,940 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:48:11,940 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:48:15,486 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:48:15,488 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 21:48:15,537 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:48:17,587 INFO L232 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 74.26% of their original sizes. [2018-07-23 21:48:17,588 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:48:18,042 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:48:18,043 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:48:18,043 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-07-23 21:48:18,043 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:48:18,045 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 21:48:18,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 21:48:18,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 21:48:18,046 INFO L87 Difference]: Start difference. First operand 2160 states and 3146 transitions. Second operand 7 states. [2018-07-23 21:48:20,008 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:48:39,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:48:39,315 INFO L93 Difference]: Finished difference Result 4460 states and 6503 transitions. [2018-07-23 21:48:39,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 21:48:39,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2018-07-23 21:48:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:48:39,328 INFO L225 Difference]: With dead ends: 4460 [2018-07-23 21:48:39,328 INFO L226 Difference]: Without dead ends: 2306 [2018-07-23 21:48:39,336 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 21:48:39,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2018-07-23 21:48:39,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2304. [2018-07-23 21:48:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2304 states. [2018-07-23 21:48:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 3298 transitions. [2018-07-23 21:48:39,403 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 3298 transitions. Word has length 147 [2018-07-23 21:48:39,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:48:39,403 INFO L471 AbstractCegarLoop]: Abstraction has 2304 states and 3298 transitions. [2018-07-23 21:48:39,403 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 21:48:39,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 3298 transitions. [2018-07-23 21:48:39,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-23 21:48:39,408 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:48:39,408 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:48:39,409 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:48:39,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1408154240, now seen corresponding path program 1 times [2018-07-23 21:48:39,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:48:39,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:48:39,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:48:39,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:48:39,411 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:48:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:48:39,653 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:48:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 21:48:39,691 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:48:39,691 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:48:39,692 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-07-23 21:48:39,692 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:48:39,701 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:48:39,701 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:48:43,426 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:48:57,511 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:48:57,511 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:48:57,530 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:49:02,569 INFO L232 lantSequenceWeakener]: Weakened 180 states. On average, predicates are now at 73.98% of their original sizes. [2018-07-23 21:49:02,570 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:49:05,566 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:49:05,567 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:49:05,567 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 14 [2018-07-23 21:49:05,567 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:49:05,568 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 21:49:05,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 21:49:05,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-23 21:49:05,569 INFO L87 Difference]: Start difference. First operand 2304 states and 3298 transitions. Second operand 12 states. [2018-07-23 21:49:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:49:51,290 INFO L93 Difference]: Finished difference Result 4611 states and 6727 transitions. [2018-07-23 21:49:51,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 21:49:51,290 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 182 [2018-07-23 21:49:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:49:51,302 INFO L225 Difference]: With dead ends: 4611 [2018-07-23 21:49:51,302 INFO L226 Difference]: Without dead ends: 2457 [2018-07-23 21:49:51,311 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 117 SyntacticMatches, 54 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-07-23 21:49:51,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2018-07-23 21:49:51,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2450. [2018-07-23 21:49:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2450 states. [2018-07-23 21:49:51,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3459 transitions. [2018-07-23 21:49:51,373 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3459 transitions. Word has length 182 [2018-07-23 21:49:51,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:49:51,373 INFO L471 AbstractCegarLoop]: Abstraction has 2450 states and 3459 transitions. [2018-07-23 21:49:51,374 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 21:49:51,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3459 transitions. [2018-07-23 21:49:51,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-23 21:49:51,378 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:49:51,378 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:49:51,378 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:49:51,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1512419139, now seen corresponding path program 1 times [2018-07-23 21:49:51,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:49:51,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:49:51,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:49:51,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:49:51,380 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:49:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:49:51,652 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:49:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 21:49:51,883 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:49:51,883 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:49:51,883 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-07-23 21:49:51,884 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:49:51,891 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:49:51,891 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:50:21,878 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:50:21,878 INFO L272 AbstractInterpreter]: Visited 142 different actions 549 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:50:21,884 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:50:24,288 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 73.86% of their original sizes. [2018-07-23 21:50:24,289 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:50:25,360 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:50:25,361 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:50:25,361 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [4] total 17 [2018-07-23 21:50:25,361 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:50:25,362 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 21:50:25,362 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 21:50:25,362 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-07-23 21:50:25,362 INFO L87 Difference]: Start difference. First operand 2450 states and 3459 transitions. Second operand 15 states. [2018-07-23 21:50:28,238 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:50:49,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:50:49,973 INFO L93 Difference]: Finished difference Result 4760 states and 6860 transitions. [2018-07-23 21:50:49,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 21:50:49,974 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 201 [2018-07-23 21:50:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:50:49,984 INFO L225 Difference]: With dead ends: 4760 [2018-07-23 21:50:49,985 INFO L226 Difference]: Without dead ends: 2606 [2018-07-23 21:50:49,993 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2018-07-23 21:50:49,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2018-07-23 21:50:50,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2600. [2018-07-23 21:50:50,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2018-07-23 21:50:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3633 transitions. [2018-07-23 21:50:50,062 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3633 transitions. Word has length 201 [2018-07-23 21:50:50,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:50:50,063 INFO L471 AbstractCegarLoop]: Abstraction has 2600 states and 3633 transitions. [2018-07-23 21:50:50,063 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 21:50:50,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3633 transitions. [2018-07-23 21:50:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-07-23 21:50:50,068 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:50:50,069 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:50:50,069 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:50:50,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1757000960, now seen corresponding path program 1 times [2018-07-23 21:50:50,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:50:50,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:50:50,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:50:50,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:50:50,071 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:50:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:50:50,350 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:50:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-07-23 21:50:50,509 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:50:50,509 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:50:50,509 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-07-23 21:50:50,510 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [538], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:50:50,512 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:50:50,512 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:50:51,890 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:50:59,091 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:50:59,091 INFO L272 AbstractInterpreter]: Visited 89 different actions 172 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:50:59,095 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:51:04,117 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 73.83% of their original sizes. [2018-07-23 21:51:04,117 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:51:06,419 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:51:06,419 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:51:06,420 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-07-23 21:51:06,420 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:51:06,420 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 21:51:06,420 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 21:51:06,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-23 21:51:06,421 INFO L87 Difference]: Start difference. First operand 2600 states and 3633 transitions. Second operand 10 states. [2018-07-23 21:51:37,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:51:37,328 INFO L93 Difference]: Finished difference Result 5053 states and 7169 transitions. [2018-07-23 21:51:37,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 21:51:37,328 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2018-07-23 21:51:37,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:51:37,339 INFO L225 Difference]: With dead ends: 5053 [2018-07-23 21:51:37,339 INFO L226 Difference]: Without dead ends: 2749 [2018-07-23 21:51:37,347 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 224 GetRequests, 155 SyntacticMatches, 54 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-07-23 21:51:37,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2018-07-23 21:51:37,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2746. [2018-07-23 21:51:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2746 states. [2018-07-23 21:51:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3793 transitions. [2018-07-23 21:51:37,426 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3793 transitions. Word has length 218 [2018-07-23 21:51:37,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:51:37,426 INFO L471 AbstractCegarLoop]: Abstraction has 2746 states and 3793 transitions. [2018-07-23 21:51:37,427 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 21:51:37,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3793 transitions. [2018-07-23 21:51:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-07-23 21:51:37,433 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:51:37,433 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:51:37,433 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:51:37,434 INFO L82 PathProgramCache]: Analyzing trace with hash 151529664, now seen corresponding path program 1 times [2018-07-23 21:51:37,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:51:37,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:51:37,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:51:37,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:51:37,435 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:51:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:51:37,847 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-23 21:51:38,035 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-23 21:51:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-07-23 21:51:38,285 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:51:38,286 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-23 21:51:38,286 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:51:38,286 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 21:51:38,287 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 21:51:38,287 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2018-07-23 21:51:38,287 INFO L87 Difference]: Start difference. First operand 2746 states and 3793 transitions. Second operand 8 states. [2018-07-23 21:51:40,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:51:40,312 INFO L93 Difference]: Finished difference Result 5810 states and 8414 transitions. [2018-07-23 21:51:40,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 21:51:40,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2018-07-23 21:51:40,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:51:40,325 INFO L225 Difference]: With dead ends: 5810 [2018-07-23 21:51:40,325 INFO L226 Difference]: Without dead ends: 2741 [2018-07-23 21:51:40,341 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2018-07-23 21:51:40,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2018-07-23 21:51:40,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2741. [2018-07-23 21:51:40,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2741 states. [2018-07-23 21:51:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 3737 transitions. [2018-07-23 21:51:40,415 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 3737 transitions. Word has length 250 [2018-07-23 21:51:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:51:40,415 INFO L471 AbstractCegarLoop]: Abstraction has 2741 states and 3737 transitions. [2018-07-23 21:51:40,416 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 21:51:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 3737 transitions. [2018-07-23 21:51:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-07-23 21:51:40,423 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:51:40,423 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:51:40,423 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:51:40,424 INFO L82 PathProgramCache]: Analyzing trace with hash 308978479, now seen corresponding path program 1 times [2018-07-23 21:51:40,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:51:40,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:51:40,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:51:40,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:51:40,425 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:51:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:51:40,776 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:51:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 119 proven. 6 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-07-23 21:51:40,913 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:51:40,913 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:51:40,914 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-07-23 21:51:40,914 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [429], [431], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:51:40,917 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:51:40,917 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:51:42,430 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 21:51:44,628 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 21:51:44,629 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 21:51:44,630 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 21:51:44,630 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:51:44,630 INFO L191 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 [2018-07-23 21:51:44,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:51:44,638 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 21:51:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:51:44,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 21:51:44,799 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 21:51:45,000 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 21:51:45,000 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 21:51:45,008 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 21:51:45,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 09:51:45 BoogieIcfgContainer [2018-07-23 21:51:45,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 21:51:45,009 INFO L168 Benchmark]: Toolchain (without parser) took 236025.20 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -413.3 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-23 21:51:45,010 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-07-23 21:51:45,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.58 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 21:51:45,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.03 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 21:51:45,012 INFO L168 Benchmark]: Boogie Preprocessor took 304.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -864.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2018-07-23 21:51:45,016 INFO L168 Benchmark]: RCFGBuilder took 3628.34 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 114.2 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. [2018-07-23 21:51:45,017 INFO L168 Benchmark]: TraceAbstraction took 231301.55 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 284.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-23 21:51:45,028 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.58 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 95.03 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 304.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -864.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3628.34 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 114.2 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231301.55 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 284.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 181]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 181). Cancelled while BasicCegarLoop was analyzing trace of length 254 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 231.1s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 139.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1306 SDtfs, 6993 SDslu, 1853 SDs, 0 SdLazy, 9529 SolverSat, 1774 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 77.3s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 822 GetRequests, 618 SyntacticMatches, 110 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2746occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 63.8s AbstIntTime, 5 AbstIntIterations, 4 AbstIntStrong, 0.9948038413588904 AbsIntWeakeningRatio, 0.11559139784946236 AbsIntAvgWeakeningVarsNumRemoved, 208.40456989247312 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 63 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1494 NumberOfCodeBlocks, 1494 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1485 ConstructedInterpolants, 0 QuantifiedInterpolants, 1035801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 457/732 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label02_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_21-51-45-049.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label02_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_21-51-45-049.csv Completed graceful shutdown