java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:57:38,083 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:57:38,085 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:57:38,098 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:57:38,098 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:57:38,099 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:57:38,101 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:57:38,102 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:57:38,104 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:57:38,105 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:57:38,106 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:57:38,106 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:57:38,107 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:57:38,108 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:57:38,109 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:57:38,110 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:57:38,111 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:57:38,113 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:57:38,115 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:57:38,117 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:57:38,118 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:57:38,119 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:57:38,122 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:57:38,122 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:57:38,122 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:57:38,123 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:57:38,124 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:57:38,125 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:57:38,126 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:57:38,127 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:57:38,127 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:57:38,128 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:57:38,128 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:57:38,128 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:57:38,129 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:57:38,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:57:38,130 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:57:38,150 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:57:38,150 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:57:38,151 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:57:38,151 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:57:38,151 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:57:38,151 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:57:38,152 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:57:38,154 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:57:38,154 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:57:38,155 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:57:38,155 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:57:38,155 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:57:38,156 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:57:38,156 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:57:38,156 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:57:38,156 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:57:38,156 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:57:38,157 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:57:38,158 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:57:38,158 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:57:38,158 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:57:38,159 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:57:38,159 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:57:38,159 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:57:38,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:57:38,159 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:57:38,160 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:57:38,160 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:57:38,160 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:57:38,160 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:57:38,160 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:57:38,161 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:57:38,161 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:57:38,161 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:57:38,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:57:38,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:57:38,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:57:38,237 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:57:38,237 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:57:38,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c [2018-10-24 18:57:38,296 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a68911577/1a4047ed13ea49ec821059a55cecc773/FLAG8b1757fc0 [2018-10-24 18:57:39,003 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:57:39,004 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label09_false-unreach-call.c [2018-10-24 18:57:39,034 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a68911577/1a4047ed13ea49ec821059a55cecc773/FLAG8b1757fc0 [2018-10-24 18:57:39,055 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a68911577/1a4047ed13ea49ec821059a55cecc773 [2018-10-24 18:57:39,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:57:39,070 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:57:39,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:57:39,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:57:39,076 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:57:39,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:57:39" (1/1) ... [2018-10-24 18:57:39,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:39, skipping insertion in model container [2018-10-24 18:57:39,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:57:39" (1/1) ... [2018-10-24 18:57:39,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:57:39,242 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:57:40,443 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:57:40,448 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:57:40,882 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:57:40,909 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:57:40,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40 WrapperNode [2018-10-24 18:57:40,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:57:40,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:57:40,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:57:40,911 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:57:40,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:40,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:41,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:57:41,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:57:41,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:57:41,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:57:41,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:41,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:41,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:41,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:41,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:41,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:41,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... [2018-10-24 18:57:41,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:57:41,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:57:41,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:57:41,556 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:57:41,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:57:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:57:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:57:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 18:57:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 18:57:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:57:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:57:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:57:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:57:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:57:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:57:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:57:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:57:50,765 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:57:50,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:57:50 BoogieIcfgContainer [2018-10-24 18:57:50,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:57:50,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:57:50,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:57:50,771 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:57:50,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:57:39" (1/3) ... [2018-10-24 18:57:50,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb0b389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:57:50, skipping insertion in model container [2018-10-24 18:57:50,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:57:40" (2/3) ... [2018-10-24 18:57:50,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb0b389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:57:50, skipping insertion in model container [2018-10-24 18:57:50,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:57:50" (3/3) ... [2018-10-24 18:57:50,775 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label09_false-unreach-call.c [2018-10-24 18:57:50,787 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:57:50,801 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:57:50,820 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:57:50,875 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:57:50,876 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:57:50,876 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:57:50,876 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:57:50,876 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:57:50,876 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:57:50,877 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:57:50,877 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:57:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 18:57:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-24 18:57:50,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:57:50,934 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:57:50,936 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:57:50,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:57:50,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1936021327, now seen corresponding path program 1 times [2018-10-24 18:57:50,947 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:57:51,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:57:51,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:57:51,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:57:51,001 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:57:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:57:51,388 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:57:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:57:51,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:57:51,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:57:51,495 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:57:51,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:57:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:57:51,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:57:51,523 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 18:57:58,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:57:58,281 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 18:57:58,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:57:58,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-10-24 18:57:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:57:58,327 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 18:57:58,327 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 18:57:58,340 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:57:58,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 18:57:58,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 18:57:58,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 18:57:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-10-24 18:57:58,505 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 17 [2018-10-24 18:57:58,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:57:58,505 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-10-24 18:57:58,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:57:58,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-10-24 18:57:58,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-24 18:57:58,511 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:57:58,511 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:57:58,512 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:57:58,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:57:58,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1492732416, now seen corresponding path program 1 times [2018-10-24 18:57:58,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:57:58,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:57:58,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:57:58,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:57:58,514 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:57:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:57:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:57:58,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:57:58,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:57:58,803 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:57:58,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:57:58,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:57:58,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:57:58,806 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-10-24 18:58:07,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:58:07,142 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-10-24 18:58:07,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:58:07,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2018-10-24 18:58:07,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:58:07,163 INFO L225 Difference]: With dead ends: 4419 [2018-10-24 18:58:07,163 INFO L226 Difference]: Without dead ends: 2951 [2018-10-24 18:58:07,169 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:58:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-24 18:58:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-10-24 18:58:07,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-10-24 18:58:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-10-24 18:58:07,254 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 87 [2018-10-24 18:58:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:58:07,255 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-10-24 18:58:07,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:58:07,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-10-24 18:58:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-24 18:58:07,259 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:58:07,259 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:58:07,260 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:58:07,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:58:07,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1467766747, now seen corresponding path program 1 times [2018-10-24 18:58:07,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:58:07,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:58:07,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:58:07,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:58:07,262 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:58:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:58:07,453 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:58:07,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:58:07,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:58:07,454 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:58:07,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:58:07,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:58:07,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:58:07,455 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-10-24 18:58:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:58:13,012 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-10-24 18:58:13,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:58:13,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-10-24 18:58:13,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:58:13,039 INFO L225 Difference]: With dead ends: 7345 [2018-10-24 18:58:13,040 INFO L226 Difference]: Without dead ends: 4426 [2018-10-24 18:58:13,049 INFO L605 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 [2018-10-24 18:58:13,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-10-24 18:58:13,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-10-24 18:58:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-10-24 18:58:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-10-24 18:58:13,190 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 88 [2018-10-24 18:58:13,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:58:13,191 INFO L481 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-10-24 18:58:13,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:58:13,191 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-10-24 18:58:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-24 18:58:13,201 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:58:13,201 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:58:13,201 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:58:13,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:58:13,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1043283703, now seen corresponding path program 1 times [2018-10-24 18:58:13,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:58:13,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:58:13,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:58:13,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:58:13,203 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:58:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:58:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:58:13,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:58:13,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:58:13,530 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:58:13,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:58:13,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:58:13,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:58:13,532 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-10-24 18:58:22,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:58:22,902 INFO L93 Difference]: Finished difference Result 14819 states and 21982 transitions. [2018-10-24 18:58:22,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:58:22,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2018-10-24 18:58:22,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:58:22,956 INFO L225 Difference]: With dead ends: 14819 [2018-10-24 18:58:22,956 INFO L226 Difference]: Without dead ends: 10434 [2018-10-24 18:58:22,978 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:58:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2018-10-24 18:58:23,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 10284. [2018-10-24 18:58:23,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10284 states. [2018-10-24 18:58:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10284 states to 10284 states and 13624 transitions. [2018-10-24 18:58:23,203 INFO L78 Accepts]: Start accepts. Automaton has 10284 states and 13624 transitions. Word has length 90 [2018-10-24 18:58:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:58:23,204 INFO L481 AbstractCegarLoop]: Abstraction has 10284 states and 13624 transitions. [2018-10-24 18:58:23,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:58:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 10284 states and 13624 transitions. [2018-10-24 18:58:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-24 18:58:23,208 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:58:23,209 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:58:23,209 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:58:23,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:58:23,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1013837730, now seen corresponding path program 1 times [2018-10-24 18:58:23,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:58:23,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:58:23,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:58:23,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:58:23,211 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:58:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:58:23,415 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 18:58:23,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:58:23,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:58:23,416 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:58:23,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:58:23,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:58:23,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:58:23,417 INFO L87 Difference]: Start difference. First operand 10284 states and 13624 transitions. Second operand 3 states. [2018-10-24 18:58:30,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:58:30,150 INFO L93 Difference]: Finished difference Result 28424 states and 38618 transitions. [2018-10-24 18:58:30,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:58:30,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-10-24 18:58:30,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:58:30,227 INFO L225 Difference]: With dead ends: 28424 [2018-10-24 18:58:30,227 INFO L226 Difference]: Without dead ends: 18146 [2018-10-24 18:58:30,275 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:58:30,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18146 states. [2018-10-24 18:58:30,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18146 to 18140. [2018-10-24 18:58:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18140 states. [2018-10-24 18:58:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18140 states to 18140 states and 22671 transitions. [2018-10-24 18:58:30,687 INFO L78 Accepts]: Start accepts. Automaton has 18140 states and 22671 transitions. Word has length 194 [2018-10-24 18:58:30,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:58:30,688 INFO L481 AbstractCegarLoop]: Abstraction has 18140 states and 22671 transitions. [2018-10-24 18:58:30,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:58:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 18140 states and 22671 transitions. [2018-10-24 18:58:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-10-24 18:58:30,696 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:58:30,696 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:58:30,697 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:58:30,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:58:30,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1598601286, now seen corresponding path program 1 times [2018-10-24 18:58:30,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:58:30,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:58:30,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:58:30,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:58:30,702 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:58:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:58:31,095 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:58:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 15 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:58:31,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:58:31,754 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:58:31,755 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 279 with the following transitions: [2018-10-24 18:58:31,758 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1659], [1661], [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], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 18:58:31,835 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:58:31,835 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:58:35,292 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:58:35,294 INFO L272 AbstractInterpreter]: Visited 143 different actions 143 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:58:35,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:58:35,326 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:58:37,599 INFO L232 lantSequenceWeakener]: Weakened 270 states. On average, predicates are now at 77.33% of their original sizes. [2018-10-24 18:58:37,599 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:58:38,025 INFO L413 sIntCurrentIteration]: We have 277 unified AI predicates [2018-10-24 18:58:38,025 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:58:38,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:58:38,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-10-24 18:58:38,026 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:58:38,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:58:38,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:58:38,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:58:38,028 INFO L87 Difference]: Start difference. First operand 18140 states and 22671 transitions. Second operand 7 states. [2018-10-24 18:58:47,303 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 19:00:29,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:00:29,398 INFO L93 Difference]: Finished difference Result 36979 states and 46074 transitions. [2018-10-24 19:00:29,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:00:29,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2018-10-24 19:00:29,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:00:29,455 INFO L225 Difference]: With dead ends: 36979 [2018-10-24 19:00:29,456 INFO L226 Difference]: Without dead ends: 18845 [2018-10-24 19:00:29,491 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 278 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:00:29,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18845 states. [2018-10-24 19:00:29,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18845 to 18843. [2018-10-24 19:00:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18843 states. [2018-10-24 19:00:29,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18843 states to 18843 states and 23386 transitions. [2018-10-24 19:00:29,852 INFO L78 Accepts]: Start accepts. Automaton has 18843 states and 23386 transitions. Word has length 278 [2018-10-24 19:00:29,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:00:29,853 INFO L481 AbstractCegarLoop]: Abstraction has 18843 states and 23386 transitions. [2018-10-24 19:00:29,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 19:00:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18843 states and 23386 transitions. [2018-10-24 19:00:29,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2018-10-24 19:00:29,862 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:00:29,863 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 19:00:29,863 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:00:29,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:00:29,864 INFO L82 PathProgramCache]: Analyzing trace with hash 543398500, now seen corresponding path program 1 times [2018-10-24 19:00:29,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:00:29,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:00:29,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:00:29,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:00:29,865 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:00:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:00:30,378 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 19:00:30,583 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 19:00:30,806 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 19:00:31,236 WARN L179 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 19:00:31,783 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 89 proven. 219 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 19:00:31,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:00:31,783 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:00:31,784 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 400 with the following transitions: [2018-10-24 19:00:31,784 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1659], [1661], [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], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2188], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [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], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 19:00:31,793 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:00:31,794 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:00:45,541 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:00:45,542 INFO L272 AbstractInterpreter]: Visited 196 different actions 386 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 19:00:45,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:00:45,548 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:00:49,325 INFO L232 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 77.84% of their original sizes. [2018-10-24 19:00:49,325 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 19:01:22,476 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:01:22,481 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:01:22,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:01:22 BoogieIcfgContainer [2018-10-24 19:01:22,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:01:22,483 INFO L168 Benchmark]: Toolchain (without parser) took 223414.65 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 19:01:22,486 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:01:22,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1839.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:01:22,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 424.54 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -900.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-24 19:01:22,488 INFO L168 Benchmark]: Boogie Preprocessor took 218.99 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2018-10-24 19:01:22,489 INFO L168 Benchmark]: RCFGBuilder took 9211.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 521.5 MB). Peak memory consumption was 521.5 MB. Max. memory is 7.1 GB. [2018-10-24 19:01:22,490 INFO L168 Benchmark]: TraceAbstraction took 211714.25 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.8 GB in the end (delta: -1.2 GB). Peak memory consumption was 614.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:01:22,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1839.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 424.54 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.7 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -900.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 218.99 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9211.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 521.5 MB). Peak memory consumption was 521.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211714.25 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.8 GB in the end (delta: -1.2 GB). Peak memory consumption was 614.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 39]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 39). Cancelled while BasicCegarLoop was analyzing trace of length 400 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 211.6s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 148.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1996 SDtfs, 10943 SDslu, 864 SDs, 0 SdLazy, 20847 SolverSat, 4768 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 314 GetRequests, 284 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18843occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 17.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9963794954374663 AbsIntWeakeningRatio, 0.08592592592592592 AbsIntAvgWeakeningVarsNumRemoved, 512.8562962962963 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 219 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 754 NumberOfCodeBlocks, 754 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 748 ConstructedInterpolants, 0 QuantifiedInterpolants, 423313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 135/263 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown