java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label20_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 05:42:24,931 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 05:42:24,933 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 05:42:24,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 05:42:24,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 05:42:24,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 05:42:24,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 05:42:24,956 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 05:42:24,959 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 05:42:24,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 05:42:24,961 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 05:42:24,961 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 05:42:24,962 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 05:42:24,965 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 05:42:24,966 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 05:42:24,967 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 05:42:24,967 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 05:42:24,977 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 05:42:24,979 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 05:42:24,980 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 05:42:24,981 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 05:42:24,985 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 05:42:24,987 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 05:42:24,998 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 05:42:24,998 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 05:42:24,999 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 05:42:25,001 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 05:42:25,001 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 05:42:25,024 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 05:42:25,024 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 05:42:25,025 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 05:42:25,025 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 05:42:25,025 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 05:42:25,026 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 05:42:25,026 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 05:42:25,026 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 05:42:25,026 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 05:42:25,026 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 05:42:25,026 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 05:42:25,027 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 05:42:25,027 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 05:42:25,028 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 05:42:25,028 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 05:42:25,028 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 05:42:25,028 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 05:42:25,028 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 05:42:25,029 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 05:42:25,029 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 05:42:25,029 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 05:42:25,029 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 05:42:25,029 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 05:42:25,029 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 05:42:25,030 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 05:42:25,030 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 05:42:25,030 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 05:42:25,030 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 05:42:25,030 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 05:42:25,031 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 05:42:25,031 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 05:42:25,031 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 05:42:25,031 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 05:42:25,032 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 05:42:25,032 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 05:42:25,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 05:42:25,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 05:42:25,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 05:42:25,096 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 05:42:25,096 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 05:42:25,097 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label20_false-unreach-call.c [2018-07-21 05:42:25,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0d318c1/82fe4e57d0a7492b8e45a0bf092cd759/FLAG45a15666d [2018-07-21 05:42:26,191 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 05:42:26,192 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label20_false-unreach-call.c [2018-07-21 05:42:26,397 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0d318c1/82fe4e57d0a7492b8e45a0bf092cd759/FLAG45a15666d [2018-07-21 05:42:26,514 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0d318c1/82fe4e57d0a7492b8e45a0bf092cd759 [2018-07-21 05:42:26,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 05:42:28,275 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 05:42:28,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 05:42:28,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 05:42:28,362 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 05:42:28,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:42:26" (1/1) ... [2018-07-21 05:42:28,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29feb728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:28, skipping insertion in model container [2018-07-21 05:42:28,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:42:26" (1/1) ... [2018-07-21 05:42:29,142 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 05:42:30,173 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 05:42:30,260 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 05:42:31,096 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 05:42:31,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31 WrapperNode [2018-07-21 05:42:31,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 05:42:31,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 05:42:31,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 05:42:31,235 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 05:42:31,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:31,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:31,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 05:42:31,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 05:42:31,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 05:42:31,503 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 05:42:31,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:31,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:31,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:31,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:31,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:32,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:32,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... [2018-07-21 05:42:32,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 05:42:32,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 05:42:32,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 05:42:32,363 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 05:42:32,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 05:42:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 05:42:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 05:42:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 05:42:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 05:42:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 05:42:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 05:42:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 05:42:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 05:42:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 05:42:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 05:42:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 05:42:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 05:42:41,838 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 05:42:41,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:42:41 BoogieIcfgContainer [2018-07-21 05:42:41,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 05:42:41,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 05:42:41,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 05:42:41,843 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 05:42:41,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:42:26" (1/3) ... [2018-07-21 05:42:41,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188113d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:42:41, skipping insertion in model container [2018-07-21 05:42:41,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:42:31" (2/3) ... [2018-07-21 05:42:41,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188113d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:42:41, skipping insertion in model container [2018-07-21 05:42:41,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:42:41" (3/3) ... [2018-07-21 05:42:41,848 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label20_false-unreach-call.c [2018-07-21 05:42:41,857 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 05:42:41,864 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 05:42:42,378 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 05:42:42,379 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 05:42:42,379 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 05:42:42,380 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 05:42:42,380 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 05:42:42,380 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 05:42:42,380 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 05:42:42,380 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 05:42:42,380 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 05:42:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-21 05:42:42,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-21 05:42:42,471 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:42:42,473 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 05:42:42,473 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:42:42,478 INFO L82 PathProgramCache]: Analyzing trace with hash 707586197, now seen corresponding path program 1 times [2018-07-21 05:42:42,480 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:42:42,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:42:42,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:42:42,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:42:42,681 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:42:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:42:43,126 WARN L169 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 05:42:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:42:43,240 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:42:43,240 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 05:42:43,240 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:42:43,246 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 05:42:43,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 05:42:43,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 05:42:43,441 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-21 05:42:49,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:42:49,177 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-21 05:42:49,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 05:42:49,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-07-21 05:42:49,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:42:49,230 INFO L225 Difference]: With dead ends: 2251 [2018-07-21 05:42:49,230 INFO L226 Difference]: Without dead ends: 1474 [2018-07-21 05:42:49,243 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 05:42:49,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-21 05:42:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-21 05:42:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-21 05:42:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-07-21 05:42:49,753 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 13 [2018-07-21 05:42:49,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:42:49,753 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-07-21 05:42:49,754 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 05:42:49,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-07-21 05:42:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-21 05:42:49,761 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:42:49,761 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 05:42:49,762 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:42:49,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1314944854, now seen corresponding path program 1 times [2018-07-21 05:42:49,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:42:49,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:42:49,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:42:49,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:42:49,764 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:42:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:42:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:42:49,996 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:42:49,996 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 05:42:49,996 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:42:49,999 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 05:42:49,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 05:42:49,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 05:42:50,000 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 5 states. [2018-07-21 05:42:57,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:42:57,118 INFO L93 Difference]: Finished difference Result 3698 states and 6787 transitions. [2018-07-21 05:42:57,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:42:57,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2018-07-21 05:42:57,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:42:57,134 INFO L225 Difference]: With dead ends: 3698 [2018-07-21 05:42:57,134 INFO L226 Difference]: Without dead ends: 2230 [2018-07-21 05:42:57,139 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 05:42:57,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2018-07-21 05:42:57,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2209. [2018-07-21 05:42:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2018-07-21 05:42:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3833 transitions. [2018-07-21 05:42:57,249 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3833 transitions. Word has length 85 [2018-07-21 05:42:57,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:42:57,250 INFO L471 AbstractCegarLoop]: Abstraction has 2209 states and 3833 transitions. [2018-07-21 05:42:57,250 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 05:42:57,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3833 transitions. [2018-07-21 05:42:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-21 05:42:57,255 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:42:57,255 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 05:42:57,255 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:42:57,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1404151047, now seen corresponding path program 1 times [2018-07-21 05:42:57,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:42:57,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:42:57,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:42:57,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:42:57,257 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:42:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:42:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:42:57,542 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:42:57,542 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 05:42:57,542 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:42:57,543 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 05:42:57,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 05:42:57,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 05:42:57,544 INFO L87 Difference]: Start difference. First operand 2209 states and 3833 transitions. Second operand 6 states. [2018-07-21 05:43:04,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:43:04,306 INFO L93 Difference]: Finished difference Result 8048 states and 14214 transitions. [2018-07-21 05:43:04,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:43:04,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-07-21 05:43:04,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:43:04,349 INFO L225 Difference]: With dead ends: 8048 [2018-07-21 05:43:04,349 INFO L226 Difference]: Without dead ends: 5845 [2018-07-21 05:43:04,364 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 05:43:04,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5845 states. [2018-07-21 05:43:04,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5845 to 5795. [2018-07-21 05:43:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5795 states. [2018-07-21 05:43:04,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 9456 transitions. [2018-07-21 05:43:04,604 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 9456 transitions. Word has length 108 [2018-07-21 05:43:04,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:43:04,605 INFO L471 AbstractCegarLoop]: Abstraction has 5795 states and 9456 transitions. [2018-07-21 05:43:04,609 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 05:43:04,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 9456 transitions. [2018-07-21 05:43:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-21 05:43:04,615 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:43:04,615 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 05:43:04,615 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:43:04,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1561950257, now seen corresponding path program 1 times [2018-07-21 05:43:04,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:43:04,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:43:04,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:43:04,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:43:04,618 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:43:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:43:04,943 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 05:43:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:43:05,086 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:43:05,124 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 05:43:05,124 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:43:05,124 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 05:43:05,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 05:43:05,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 05:43:05,125 INFO L87 Difference]: Start difference. First operand 5795 states and 9456 transitions. Second operand 6 states. [2018-07-21 05:43:10,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:43:10,794 INFO L93 Difference]: Finished difference Result 14523 states and 23744 transitions. [2018-07-21 05:43:10,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:43:10,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-07-21 05:43:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:43:10,838 INFO L225 Difference]: With dead ends: 14523 [2018-07-21 05:43:10,838 INFO L226 Difference]: Without dead ends: 8734 [2018-07-21 05:43:10,861 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 05:43:10,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8734 states. [2018-07-21 05:43:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8734 to 8699. [2018-07-21 05:43:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8699 states. [2018-07-21 05:43:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8699 states to 8699 states and 12710 transitions. [2018-07-21 05:43:11,122 INFO L78 Accepts]: Start accepts. Automaton has 8699 states and 12710 transitions. Word has length 112 [2018-07-21 05:43:11,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:43:11,123 INFO L471 AbstractCegarLoop]: Abstraction has 8699 states and 12710 transitions. [2018-07-21 05:43:11,123 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 05:43:11,123 INFO L276 IsEmpty]: Start isEmpty. Operand 8699 states and 12710 transitions. [2018-07-21 05:43:11,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-21 05:43:11,133 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:43:11,133 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 05:43:11,134 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:43:11,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1434643010, now seen corresponding path program 1 times [2018-07-21 05:43:11,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:43:11,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:43:11,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:43:11,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:43:11,135 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:43:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:43:11,485 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 05:43:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 05:43:11,605 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 05:43:11,605 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 05:43:11,605 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:43:11,606 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 05:43:11,606 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 05:43:11,606 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 05:43:11,606 INFO L87 Difference]: Start difference. First operand 8699 states and 12710 transitions. Second operand 6 states. [2018-07-21 05:43:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:43:16,639 INFO L93 Difference]: Finished difference Result 22000 states and 33838 transitions. [2018-07-21 05:43:16,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:43:16,643 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-07-21 05:43:16,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:43:16,724 INFO L225 Difference]: With dead ends: 22000 [2018-07-21 05:43:16,724 INFO L226 Difference]: Without dead ends: 13307 [2018-07-21 05:43:16,745 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 05:43:16,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13307 states. [2018-07-21 05:43:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13307 to 13212. [2018-07-21 05:43:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13212 states. [2018-07-21 05:43:17,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13212 states to 13212 states and 18965 transitions. [2018-07-21 05:43:17,105 INFO L78 Accepts]: Start accepts. Automaton has 13212 states and 18965 transitions. Word has length 143 [2018-07-21 05:43:17,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:43:17,106 INFO L471 AbstractCegarLoop]: Abstraction has 13212 states and 18965 transitions. [2018-07-21 05:43:17,106 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 05:43:17,106 INFO L276 IsEmpty]: Start isEmpty. Operand 13212 states and 18965 transitions. [2018-07-21 05:43:17,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-07-21 05:43:17,111 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:43:17,112 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 05:43:17,112 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:43:17,112 INFO L82 PathProgramCache]: Analyzing trace with hash 518629460, now seen corresponding path program 1 times [2018-07-21 05:43:17,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:43:17,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:43:17,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:43:17,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:43:17,115 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:43:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:43:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 05:43:17,542 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:43:17,542 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 05:43:17,543 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-07-21 05:43:17,582 INFO L201 CegarAbsIntRunner]: [0], [1], [1627], [1631], [1637], [1641], [1643], [1648], [1651], [1653], [1656], [1664], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2141], [2145], [2148], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2224], [3020], [3021], [3022], [3023], [3027], [3028] [2018-07-21 05:43:17,685 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 05:43:17,685 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 05:43:26,526 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 05:43:26,831 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 05:43:26,833 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 05:43:26,876 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 05:43:33,939 INFO L232 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 77.25% of their original sizes. [2018-07-21 05:43:33,939 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 05:43:34,659 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 05:43:34,660 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 05:43:34,660 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-21 05:43:34,661 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:43:34,661 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 05:43:34,661 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 05:43:34,661 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 05:43:34,662 INFO L87 Difference]: Start difference. First operand 13212 states and 18965 transitions. Second operand 7 states. [2018-07-21 05:45:10,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:45:10,024 INFO L93 Difference]: Finished difference Result 27123 states and 38863 transitions. [2018-07-21 05:45:10,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:45:10,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2018-07-21 05:45:10,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:45:10,073 INFO L225 Difference]: With dead ends: 27123 [2018-07-21 05:45:10,073 INFO L226 Difference]: Without dead ends: 13917 [2018-07-21 05:45:10,103 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-21 05:45:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13917 states. [2018-07-21 05:45:10,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13917 to 13915. [2018-07-21 05:45:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13915 states. [2018-07-21 05:45:10,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13915 states to 13915 states and 19680 transitions. [2018-07-21 05:45:10,392 INFO L78 Accepts]: Start accepts. Automaton has 13915 states and 19680 transitions. Word has length 176 [2018-07-21 05:45:10,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:45:10,392 INFO L471 AbstractCegarLoop]: Abstraction has 13915 states and 19680 transitions. [2018-07-21 05:45:10,393 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 05:45:10,393 INFO L276 IsEmpty]: Start isEmpty. Operand 13915 states and 19680 transitions. [2018-07-21 05:45:10,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2018-07-21 05:45:10,408 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:45:10,408 INFO L358 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 05:45:10,409 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 05:45:10,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1879006294, now seen corresponding path program 1 times [2018-07-21 05:45:10,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:45:10,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:45:10,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:45:10,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:45:10,411 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:45:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:45:11,127 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-21 05:45:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 77 proven. 171 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 05:45:11,378 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:45:11,378 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 05:45:11,379 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 364 with the following transitions: [2018-07-21 05:45:11,379 INFO L201 CegarAbsIntRunner]: [0], [1], [1627], [1631], [1637], [1641], [1643], [1648], [1651], [1653], [1656], [1664], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2141], [2145], [2148], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2224], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2608], [3020], [3021], [3022], [3023], [3027], [3028] [2018-07-21 05:45:11,390 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 05:45:11,390 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 05:45:17,126 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 05:45:41,981 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 05:45:41,981 INFO L272 AbstractInterpreter]: Visited 196 different actions 388 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 05:45:41,993 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 05:45:48,406 INFO L232 lantSequenceWeakener]: Weakened 361 states. On average, predicates are now at 77.33% of their original sizes. [2018-07-21 05:45:48,407 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 05:45:54,891 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 05:45:54,892 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 05:45:54,892 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2018-07-21 05:45:54,892 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:45:54,892 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-21 05:45:54,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-21 05:45:54,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-21 05:45:54,893 INFO L87 Difference]: Start difference. First operand 13915 states and 19680 transitions. Second operand 11 states. Received shutdown request... [2018-07-21 05:45:58,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:45:58,209 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 05:45:58,213 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 05:45:58,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:45:58 BoogieIcfgContainer [2018-07-21 05:45:58,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 05:45:58,214 INFO L168 Benchmark]: Toolchain (without parser) took 211691.66 ms. Allocated memory was 306.7 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 244.2 MB in the beginning and 836.8 MB in the end (delta: -592.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-07-21 05:45:58,215 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 306.7 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 05:45:58,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2957.46 ms. Allocated memory was 306.7 MB in the beginning and 329.3 MB in the end (delta: 22.5 MB). Free memory was 243.2 MB in the beginning and 174.6 MB in the end (delta: 68.6 MB). Peak memory consumption was 91.1 MB. Max. memory is 5.3 GB. [2018-07-21 05:45:58,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 266.57 ms. Allocated memory was 329.3 MB in the beginning and 380.1 MB in the end (delta: 50.9 MB). Free memory was 174.6 MB in the beginning and 307.9 MB in the end (delta: -133.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 5.3 GB. [2018-07-21 05:45:58,217 INFO L168 Benchmark]: Boogie Preprocessor took 861.27 ms. Allocated memory was 380.1 MB in the beginning and 524.3 MB in the end (delta: 144.2 MB). Free memory was 307.9 MB in the beginning and 456.5 MB in the end (delta: -148.6 MB). Peak memory consumption was 53.2 MB. Max. memory is 5.3 GB. [2018-07-21 05:45:58,218 INFO L168 Benchmark]: RCFGBuilder took 9475.57 ms. Allocated memory was 524.3 MB in the beginning and 656.4 MB in the end (delta: 132.1 MB). Free memory was 456.5 MB in the beginning and 428.2 MB in the end (delta: 28.4 MB). Peak memory consumption was 207.9 MB. Max. memory is 5.3 GB. [2018-07-21 05:45:58,219 INFO L168 Benchmark]: TraceAbstraction took 196374.29 ms. Allocated memory was 656.4 MB in the beginning and 2.6 GB in the end (delta: 1.9 GB). Free memory was 428.2 MB in the beginning and 836.8 MB in the end (delta: -408.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-07-21 05:45:58,224 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 306.7 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2957.46 ms. Allocated memory was 306.7 MB in the beginning and 329.3 MB in the end (delta: 22.5 MB). Free memory was 243.2 MB in the beginning and 174.6 MB in the end (delta: 68.6 MB). Peak memory consumption was 91.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 266.57 ms. Allocated memory was 329.3 MB in the beginning and 380.1 MB in the end (delta: 50.9 MB). Free memory was 174.6 MB in the beginning and 307.9 MB in the end (delta: -133.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 861.27 ms. Allocated memory was 380.1 MB in the beginning and 524.3 MB in the end (delta: 144.2 MB). Free memory was 307.9 MB in the beginning and 456.5 MB in the end (delta: -148.6 MB). Peak memory consumption was 53.2 MB. Max. memory is 5.3 GB. * RCFGBuilder took 9475.57 ms. Allocated memory was 524.3 MB in the beginning and 656.4 MB in the end (delta: 132.1 MB). Free memory was 456.5 MB in the beginning and 428.2 MB in the end (delta: 28.4 MB). Peak memory consumption was 207.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 196374.29 ms. Allocated memory was 656.4 MB in the beginning and 2.6 GB in the end (delta: 1.9 GB). Free memory was 428.2 MB in the beginning and 836.8 MB in the end (delta: -408.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 27). Cancelled while BasicCegarLoop was constructing difference of abstraction (13915states) and interpolant automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (81 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 195.9s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 129.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1431 SDtfs, 13740 SDslu, 799 SDs, 0 SdLazy, 24029 SolverSat, 6199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 92.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 586 GetRequests, 430 SyntacticMatches, 109 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13915occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 39.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.995449086443743 AbsIntWeakeningRatio, 0.10800744878957169 AbsIntAvgWeakeningVarsNumRemoved, 36.97579143389199 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 203 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 993 ConstructedInterpolants, 0 QuantifiedInterpolants, 1556328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 123/361 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem18_label20_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_05-45-58-244.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem18_label20_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_05-45-58-244.csv Completed graceful shutdown