java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label44_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:25:44,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:25:44,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:25:44,263 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:25:44,263 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:25:44,264 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:25:44,265 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:25:44,267 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:25:44,269 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:25:44,270 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:25:44,271 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:25:44,271 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:25:44,272 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:25:44,273 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:25:44,274 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:25:44,275 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:25:44,276 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:25:44,278 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:25:44,280 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:25:44,281 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:25:44,283 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:25:44,284 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:25:44,286 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:25:44,287 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:25:44,287 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:25:44,288 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:25:44,289 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:25:44,290 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:25:44,291 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:25:44,292 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:25:44,292 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:25:44,293 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:25:44,293 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:25:44,294 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:25:44,295 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:25:44,296 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:25:44,296 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 16:25:44,312 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:25:44,312 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:25:44,313 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:25:44,313 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:25:44,313 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:25:44,314 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:25:44,314 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:25:44,314 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:25:44,314 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:25:44,314 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:25:44,314 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:25:44,315 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:25:44,315 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:25:44,316 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:25:44,316 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:25:44,316 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:25:44,316 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:25:44,316 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:25:44,317 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:25:44,317 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:25:44,317 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:25:44,317 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:25:44,317 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:25:44,318 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:25:44,318 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:25:44,318 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:25:44,318 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:25:44,318 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:25:44,319 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:25:44,319 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:25:44,319 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:25:44,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:25:44,319 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:25:44,320 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:25:44,320 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:25:44,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:25:44,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:25:44,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:25:44,411 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:25:44,411 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:25:44,412 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label44_false-unreach-call.c [2018-11-12 16:25:44,473 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6463e816c/4a5aebd24546490ab4469bb253fa03cc/FLAG8fb4354cf [2018-11-12 16:25:45,338 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:25:45,339 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label44_false-unreach-call.c [2018-11-12 16:25:45,376 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6463e816c/4a5aebd24546490ab4469bb253fa03cc/FLAG8fb4354cf [2018-11-12 16:25:45,393 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6463e816c/4a5aebd24546490ab4469bb253fa03cc [2018-11-12 16:25:45,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:25:45,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:25:45,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:25:45,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:25:45,414 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:25:45,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:25:45" (1/1) ... [2018-11-12 16:25:45,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d32a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:45, skipping insertion in model container [2018-11-12 16:25:45,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:25:45" (1/1) ... [2018-11-12 16:25:45,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:25:45,612 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:25:47,077 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:25:47,083 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:25:47,907 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:25:47,946 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:25:47,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47 WrapperNode [2018-11-12 16:25:47,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:25:47,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:25:47,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:25:47,948 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:25:48,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:25:48,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:25:48,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:25:48,345 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:25:48,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... [2018-11-12 16:25:48,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:25:48,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:25:48,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:25:48,619 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:25:48,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:25:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:25:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:25:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:25:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 16:25:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 16:25:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 16:25:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 16:25:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:25:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:25:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:25:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:25:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:25:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:25:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:25:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:25:58,697 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:25:58,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:25:58 BoogieIcfgContainer [2018-11-12 16:25:58,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:25:58,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:25:58,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:25:58,705 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:25:58,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:25:45" (1/3) ... [2018-11-12 16:25:58,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20743006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:25:58, skipping insertion in model container [2018-11-12 16:25:58,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:47" (2/3) ... [2018-11-12 16:25:58,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20743006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:25:58, skipping insertion in model container [2018-11-12 16:25:58,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:25:58" (3/3) ... [2018-11-12 16:25:58,715 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label44_false-unreach-call.c [2018-11-12 16:25:58,726 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:25:58,740 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:25:58,761 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:25:58,822 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:25:58,822 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:25:58,823 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:25:58,823 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:25:58,823 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:25:58,823 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:25:58,823 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:25:58,824 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:25:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-12 16:25:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-12 16:25:58,891 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:25:58,892 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:25:58,896 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:25:58,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:25:58,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1095367477, now seen corresponding path program 1 times [2018-11-12 16:25:58,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:25:58,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:25:58,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:25:58,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:25:58,969 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:25:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:25:59,439 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:25:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:25:59,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:25:59,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:25:59,545 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:25:59,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:25:59,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:25:59,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:25:59,572 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-12 16:26:07,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:26:07,395 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-11-12 16:26:07,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:26:07,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-11-12 16:26:07,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:26:07,427 INFO L225 Difference]: With dead ends: 3097 [2018-11-12 16:26:07,427 INFO L226 Difference]: Without dead ends: 1975 [2018-11-12 16:26:07,441 INFO L604 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 [2018-11-12 16:26:07,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-11-12 16:26:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-11-12 16:26:07,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-11-12 16:26:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-11-12 16:26:07,620 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 37 [2018-11-12 16:26:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:26:07,620 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-11-12 16:26:07,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:26:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-11-12 16:26:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-11-12 16:26:07,629 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:26:07,631 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:26:07,631 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:26:07,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:07,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1403714778, now seen corresponding path program 1 times [2018-11-12 16:26:07,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:26:07,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:07,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:26:07,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:07,634 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:26:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:26:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:26:07,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:26:07,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:26:07,936 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:26:07,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:26:07,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:26:07,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:26:07,939 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-11-12 16:26:21,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:26:21,878 INFO L93 Difference]: Finished difference Result 5734 states and 9688 transitions. [2018-11-12 16:26:21,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 16:26:21,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2018-11-12 16:26:21,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:26:21,905 INFO L225 Difference]: With dead ends: 5734 [2018-11-12 16:26:21,905 INFO L226 Difference]: Without dead ends: 3766 [2018-11-12 16:26:21,912 INFO L604 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 [2018-11-12 16:26:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2018-11-12 16:26:22,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3681. [2018-11-12 16:26:22,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3681 states. [2018-11-12 16:26:22,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 5655 transitions. [2018-11-12 16:26:22,038 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 5655 transitions. Word has length 113 [2018-11-12 16:26:22,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:26:22,039 INFO L480 AbstractCegarLoop]: Abstraction has 3681 states and 5655 transitions. [2018-11-12 16:26:22,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:26:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 5655 transitions. [2018-11-12 16:26:22,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-12 16:26:22,053 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:26:22,053 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:26:22,053 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:26:22,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:22,054 INFO L82 PathProgramCache]: Analyzing trace with hash -2119578826, now seen corresponding path program 1 times [2018-11-12 16:26:22,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:26:22,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:22,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:26:22,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:22,055 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:26:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:26:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:26:22,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:26:22,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:26:22,386 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:26:22,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:26:22,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:26:22,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:26:22,387 INFO L87 Difference]: Start difference. First operand 3681 states and 5655 transitions. Second operand 5 states. [2018-11-12 16:26:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:26:40,358 INFO L93 Difference]: Finished difference Result 13644 states and 21721 transitions. [2018-11-12 16:26:40,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 16:26:40,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2018-11-12 16:26:40,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:26:40,416 INFO L225 Difference]: With dead ends: 13644 [2018-11-12 16:26:40,416 INFO L226 Difference]: Without dead ends: 9969 [2018-11-12 16:26:40,441 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:26:40,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2018-11-12 16:26:40,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 9779. [2018-11-12 16:26:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9779 states. [2018-11-12 16:26:40,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 14474 transitions. [2018-11-12 16:26:40,725 INFO L78 Accepts]: Start accepts. Automaton has 9779 states and 14474 transitions. Word has length 127 [2018-11-12 16:26:40,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:26:40,726 INFO L480 AbstractCegarLoop]: Abstraction has 9779 states and 14474 transitions. [2018-11-12 16:26:40,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:26:40,727 INFO L276 IsEmpty]: Start isEmpty. Operand 9779 states and 14474 transitions. [2018-11-12 16:26:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-12 16:26:40,732 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:26:40,733 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:26:40,733 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:26:40,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:40,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1301512730, now seen corresponding path program 1 times [2018-11-12 16:26:40,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:26:40,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:40,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:26:40,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:40,740 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:26:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:26:41,096 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:26:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:26:41,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:26:41,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:26:41,160 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:26:41,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:26:41,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:26:41,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:26:41,162 INFO L87 Difference]: Start difference. First operand 9779 states and 14474 transitions. Second operand 6 states. [2018-11-12 16:26:53,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:26:53,019 INFO L93 Difference]: Finished difference Result 34095 states and 53555 transitions. [2018-11-12 16:26:53,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:26:53,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-11-12 16:26:53,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:26:53,164 INFO L225 Difference]: With dead ends: 34095 [2018-11-12 16:26:53,164 INFO L226 Difference]: Without dead ends: 24322 [2018-11-12 16:26:53,236 INFO L604 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 [2018-11-12 16:26:53,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24322 states. [2018-11-12 16:26:53,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24322 to 24101. [2018-11-12 16:26:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24101 states. [2018-11-12 16:26:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24101 states to 24101 states and 33912 transitions. [2018-11-12 16:26:53,840 INFO L78 Accepts]: Start accepts. Automaton has 24101 states and 33912 transitions. Word has length 145 [2018-11-12 16:26:53,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:26:53,841 INFO L480 AbstractCegarLoop]: Abstraction has 24101 states and 33912 transitions. [2018-11-12 16:26:53,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:26:53,841 INFO L276 IsEmpty]: Start isEmpty. Operand 24101 states and 33912 transitions. [2018-11-12 16:26:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-12 16:26:53,845 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:26:53,845 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:26:53,845 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:26:53,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:53,846 INFO L82 PathProgramCache]: Analyzing trace with hash 351230122, now seen corresponding path program 1 times [2018-11-12 16:26:53,846 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:26:53,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:53,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:26:53,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:53,847 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:26:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:26:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:26:54,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:26:54,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 16:26:54,062 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:26:54,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 16:26:54,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 16:26:54,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:26:54,063 INFO L87 Difference]: Start difference. First operand 24101 states and 33912 transitions. Second operand 4 states. [2018-11-12 16:27:04,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:27:04,517 INFO L93 Difference]: Finished difference Result 66530 states and 99584 transitions. [2018-11-12 16:27:04,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 16:27:04,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2018-11-12 16:27:04,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:27:04,700 INFO L225 Difference]: With dead ends: 66530 [2018-11-12 16:27:04,701 INFO L226 Difference]: Without dead ends: 42435 [2018-11-12 16:27:04,769 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:27:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42435 states. [2018-11-12 16:27:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42435 to 42380. [2018-11-12 16:27:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42380 states. [2018-11-12 16:27:05,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42380 states to 42380 states and 59673 transitions. [2018-11-12 16:27:05,674 INFO L78 Accepts]: Start accepts. Automaton has 42380 states and 59673 transitions. Word has length 153 [2018-11-12 16:27:05,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:27:05,675 INFO L480 AbstractCegarLoop]: Abstraction has 42380 states and 59673 transitions. [2018-11-12 16:27:05,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 16:27:05,675 INFO L276 IsEmpty]: Start isEmpty. Operand 42380 states and 59673 transitions. [2018-11-12 16:27:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-11-12 16:27:05,707 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:27:05,707 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:27:05,707 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:27:05,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:27:05,708 INFO L82 PathProgramCache]: Analyzing trace with hash -215837280, now seen corresponding path program 1 times [2018-11-12 16:27:05,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:27:05,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:27:05,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:27:05,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:27:05,709 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:27:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:27:06,284 WARN L179 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2018-11-12 16:27:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 90 proven. 144 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-12 16:27:06,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:27:06,754 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:27:06,755 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 286 with the following transitions: [2018-11-12 16:27:06,758 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2823], [2825], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3159], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 16:27:06,840 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:27:06,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:27:07,582 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:27:07,584 INFO L272 AbstractInterpreter]: Visited 100 different actions 100 times. Never merged. Never widened. Performed 2112 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2112 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 16:27:07,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:27:07,627 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:27:08,717 INFO L227 lantSequenceWeakener]: Weakened 257 states. On average, predicates are now at 71.22% of their original sizes. [2018-11-12 16:27:08,717 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:27:09,461 INFO L415 sIntCurrentIteration]: We unified 284 AI predicates to 284 [2018-11-12 16:27:09,462 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:27:09,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:27:09,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 16:27:09,463 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:27:09,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 16:27:09,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 16:27:09,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:27:09,464 INFO L87 Difference]: Start difference. First operand 42380 states and 59673 transitions. Second operand 10 states. [2018-11-12 16:27:23,166 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:28:41,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:28:41,681 INFO L93 Difference]: Finished difference Result 85563 states and 120269 transitions. [2018-11-12 16:28:41,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 16:28:41,681 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 285 [2018-11-12 16:28:41,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:28:41,845 INFO L225 Difference]: With dead ends: 85563 [2018-11-12 16:28:41,846 INFO L226 Difference]: Without dead ends: 43189 [2018-11-12 16:28:41,956 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 288 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 16:28:41,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43189 states. [2018-11-12 16:28:42,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43189 to 43184. [2018-11-12 16:28:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43184 states. [2018-11-12 16:28:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43184 states to 43184 states and 60488 transitions. [2018-11-12 16:28:42,789 INFO L78 Accepts]: Start accepts. Automaton has 43184 states and 60488 transitions. Word has length 285 [2018-11-12 16:28:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:28:42,790 INFO L480 AbstractCegarLoop]: Abstraction has 43184 states and 60488 transitions. [2018-11-12 16:28:42,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 16:28:42,790 INFO L276 IsEmpty]: Start isEmpty. Operand 43184 states and 60488 transitions. [2018-11-12 16:28:42,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-11-12 16:28:42,812 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:28:42,812 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:28:42,813 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:28:42,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:28:42,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1802342144, now seen corresponding path program 1 times [2018-11-12 16:28:42,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:28:42,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:28:42,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:28:42,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:28:42,814 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:28:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:28:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 96 proven. 214 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-12 16:28:43,322 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:28:43,322 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:28:43,322 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 294 with the following transitions: [2018-11-12 16:28:43,322 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2823], [2825], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3163], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 16:28:43,328 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:28:43,328 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:28:44,207 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:28:44,207 INFO L272 AbstractInterpreter]: Visited 110 different actions 317 times. Merged at 5 different actions 9 times. Never widened. Performed 5634 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5634 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 16:28:44,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:28:44,236 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:28:45,197 INFO L227 lantSequenceWeakener]: Weakened 90 states. On average, predicates are now at 72.11% of their original sizes. [2018-11-12 16:28:45,198 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:28:49,652 INFO L415 sIntCurrentIteration]: We unified 292 AI predicates to 292 [2018-11-12 16:28:49,653 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:28:49,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:28:49,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-12 16:28:49,654 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:28:49,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 16:28:49,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 16:28:49,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-12 16:28:49,656 INFO L87 Difference]: Start difference. First operand 43184 states and 60488 transitions. Second operand 19 states. [2018-11-12 16:29:01,695 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 16:29:09,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-12 16:29:09,118 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:29:09,123 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:29:09,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:29:09 BoogieIcfgContainer [2018-11-12 16:29:09,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:29:09,124 INFO L168 Benchmark]: Toolchain (without parser) took 203718.36 ms. Allocated memory was 1.5 GB in the beginning and 5.7 GB in the end (delta: 4.1 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 22.4 MB). Peak memory consumption was 4.2 GB. Max. memory is 7.1 GB. [2018-11-12 16:29:09,126 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-12 16:29:09,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2539.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-12 16:29:09,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 396.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2018-11-12 16:29:09,128 INFO L168 Benchmark]: Boogie Preprocessor took 273.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2018-11-12 16:29:09,129 INFO L168 Benchmark]: RCFGBuilder took 10079.79 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 169.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 19.0 MB). Peak memory consumption was 666.7 MB. Max. memory is 7.1 GB. [2018-11-12 16:29:09,130 INFO L168 Benchmark]: TraceAbstraction took 190422.04 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.2 GB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 811.0 MB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2018-11-12 16:29:09,135 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2539.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 396.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 791.2 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 273.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10079.79 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 169.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 19.0 MB). Peak memory consumption was 666.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 190422.04 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.2 GB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 811.0 MB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 102). Cancelled while BasicCegarLoop was constructing difference of abstraction (43184states) and FLOYD_HOARE automaton (currently 15 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (6247 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 190.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 174.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3960 SDtfs, 19344 SDslu, 3721 SDs, 0 SdLazy, 36760 SolverSat, 7683 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 626 GetRequests, 512 SyntacticMatches, 55 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43184occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.997217624615722 AbsIntWeakeningRatio, 0.11458333333333333 AbsIntAvgWeakeningVarsNumRemoved, 6.920138888888889 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 557 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1153 NumberOfCodeBlocks, 1153 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1146 ConstructedInterpolants, 0 QuantifiedInterpolants, 886200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 403/761 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown