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/Problem02_label08_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:17:44,369 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:17:44,371 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:17:44,383 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:17:44,384 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:17:44,385 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:17:44,386 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:17:44,388 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:17:44,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:17:44,391 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:17:44,392 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:17:44,392 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:17:44,393 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:17:44,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:17:44,395 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:17:44,396 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:17:44,397 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:17:44,399 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:17:44,401 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:17:44,402 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:17:44,403 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:17:44,405 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:17:44,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 23:17:44,427 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 [2018-10-23 23:17:44,443 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:17:44,443 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:17:44,444 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:17:44,445 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:17:44,449 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:17:44,450 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:17:44,450 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:17:44,450 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:17:44,450 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:17:44,450 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:17:44,451 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:17:44,451 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:17:44,453 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:17:44,453 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:17:44,453 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:17:44,453 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:17:44,453 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:17:44,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:17:44,454 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:17:44,454 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:17:44,454 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:17:44,454 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:17:44,455 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:17:44,456 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:17:44,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:17:44,456 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:17:44,457 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:17:44,457 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:17:44,457 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:17:44,457 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:17:44,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:17:44,457 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:17:44,459 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:17:44,459 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:17:44,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:17:44,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:17:44,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:17:44,540 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:17:44,541 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:17:44,541 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label08_true-unreach-call_false-termination.c [2018-10-23 23:17:44,613 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0507cb876/7c4f6d59e9724742ae1f05399072e51c/FLAG4e001b8a6 [2018-10-23 23:17:45,119 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:17:45,120 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label08_true-unreach-call_false-termination.c [2018-10-23 23:17:45,142 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0507cb876/7c4f6d59e9724742ae1f05399072e51c/FLAG4e001b8a6 [2018-10-23 23:17:45,159 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0507cb876/7c4f6d59e9724742ae1f05399072e51c [2018-10-23 23:17:45,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:17:45,171 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:17:45,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:17:45,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:17:45,181 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:17:45,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:45,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7897d110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45, skipping insertion in model container [2018-10-23 23:17:45,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:45,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:17:45,274 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:17:45,761 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:17:45,767 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:17:45,924 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:17:45,939 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:17:45,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45 WrapperNode [2018-10-23 23:17:45,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:17:45,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:17:45,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:17:45,941 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:17:45,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:45,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:46,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:17:46,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:17:46,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:17:46,027 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:17:46,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:46,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:46,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:46,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:46,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:46,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:46,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (1/1) ... [2018-10-23 23:17:46,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:17:46,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:17:46,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:17:46,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:17:46,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (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 [2018-10-23 23:17:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:17:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:17:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:17:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:17:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:17:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:17:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:17:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:17:49,823 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:17:49,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:17:49 BoogieIcfgContainer [2018-10-23 23:17:49,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:17:49,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:17:49,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:17:49,836 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:17:49,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:17:45" (1/3) ... [2018-10-23 23:17:49,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1522de2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:17:49, skipping insertion in model container [2018-10-23 23:17:49,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:17:45" (2/3) ... [2018-10-23 23:17:49,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1522de2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:17:49, skipping insertion in model container [2018-10-23 23:17:49,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:17:49" (3/3) ... [2018-10-23 23:17:49,841 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label08_true-unreach-call_false-termination.c [2018-10-23 23:17:49,852 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:17:49,861 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:17:49,879 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:17:49,919 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:17:49,919 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:17:49,920 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:17:49,920 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:17:49,920 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:17:49,920 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:17:49,920 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:17:49,921 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:17:49,948 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-23 23:17:49,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-23 23:17:49,965 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:17:49,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:17:49,969 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:17:49,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:17:49,976 INFO L82 PathProgramCache]: Analyzing trace with hash 215760967, now seen corresponding path program 1 times [2018-10-23 23:17:49,979 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:17:50,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:17:50,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:17:50,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:17:50,039 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:17:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:17:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:17:50,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:17:50,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:17:50,692 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:17:50,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:17:50,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:17:50,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:17:50,719 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-23 23:17:52,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:17:52,581 INFO L93 Difference]: Finished difference Result 621 states and 1059 transitions. [2018-10-23 23:17:52,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:17:52,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2018-10-23 23:17:52,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:17:52,601 INFO L225 Difference]: With dead ends: 621 [2018-10-23 23:17:52,602 INFO L226 Difference]: Without dead ends: 382 [2018-10-23 23:17:52,610 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:17:52,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-23 23:17:52,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-10-23 23:17:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-10-23 23:17:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 608 transitions. [2018-10-23 23:17:52,714 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 608 transitions. Word has length 129 [2018-10-23 23:17:52,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:17:52,715 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 608 transitions. [2018-10-23 23:17:52,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:17:52,715 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 608 transitions. [2018-10-23 23:17:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-23 23:17:52,723 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:17:52,723 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:17:52,724 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:17:52,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:17:52,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1444172506, now seen corresponding path program 1 times [2018-10-23 23:17:52,724 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:17:52,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:17:52,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:17:52,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:17:52,727 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:17:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:17:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:17:53,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:17:53,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:17:53,237 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:17:53,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:17:53,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:17:53,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:17:53,240 INFO L87 Difference]: Start difference. First operand 382 states and 608 transitions. Second operand 5 states. [2018-10-23 23:17:54,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:17:54,956 INFO L93 Difference]: Finished difference Result 903 states and 1497 transitions. [2018-10-23 23:17:54,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:17:54,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2018-10-23 23:17:54,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:17:54,963 INFO L225 Difference]: With dead ends: 903 [2018-10-23 23:17:54,963 INFO L226 Difference]: Without dead ends: 381 [2018-10-23 23:17:54,968 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:17:54,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-10-23 23:17:54,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-10-23 23:17:54,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-10-23 23:17:54,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 602 transitions. [2018-10-23 23:17:54,995 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 602 transitions. Word has length 138 [2018-10-23 23:17:54,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:17:54,995 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 602 transitions. [2018-10-23 23:17:54,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:17:54,996 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 602 transitions. [2018-10-23 23:17:54,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-23 23:17:55,000 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:17:55,000 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:17:55,000 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:17:55,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:17:55,004 INFO L82 PathProgramCache]: Analyzing trace with hash 708351590, now seen corresponding path program 1 times [2018-10-23 23:17:55,004 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:17:55,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:17:55,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:17:55,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:17:55,013 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:17:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:17:55,920 WARN L179 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2018-10-23 23:17:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:17:56,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:17:56,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:17:56,120 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:17:56,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:17:56,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:17:56,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:17:56,122 INFO L87 Difference]: Start difference. First operand 381 states and 602 transitions. Second operand 5 states. [2018-10-23 23:17:57,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:17:57,836 INFO L93 Difference]: Finished difference Result 901 states and 1482 transitions. [2018-10-23 23:17:57,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:17:57,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2018-10-23 23:17:57,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:17:57,842 INFO L225 Difference]: With dead ends: 901 [2018-10-23 23:17:57,843 INFO L226 Difference]: Without dead ends: 380 [2018-10-23 23:17:57,848 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:17:57,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2018-10-23 23:17:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2018-10-23 23:17:57,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-10-23 23:17:57,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 594 transitions. [2018-10-23 23:17:57,883 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 594 transitions. Word has length 144 [2018-10-23 23:17:57,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:17:57,884 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 594 transitions. [2018-10-23 23:17:57,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:17:57,884 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 594 transitions. [2018-10-23 23:17:57,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-23 23:17:57,887 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:17:57,887 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:17:57,887 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:17:57,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:17:57,888 INFO L82 PathProgramCache]: Analyzing trace with hash 421834301, now seen corresponding path program 1 times [2018-10-23 23:17:57,888 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:17:57,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:17:57,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:17:57,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:17:57,889 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:17:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:17:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:17:58,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:17:58,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:17:58,113 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:17:58,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:17:58,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:17:58,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:17:58,115 INFO L87 Difference]: Start difference. First operand 380 states and 594 transitions. Second operand 6 states. [2018-10-23 23:18:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:18:00,598 INFO L93 Difference]: Finished difference Result 1193 states and 1942 transitions. [2018-10-23 23:18:00,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:18:00,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-10-23 23:18:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:18:00,603 INFO L225 Difference]: With dead ends: 1193 [2018-10-23 23:18:00,604 INFO L226 Difference]: Without dead ends: 819 [2018-10-23 23:18:00,605 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:18:00,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2018-10-23 23:18:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 807. [2018-10-23 23:18:00,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2018-10-23 23:18:00,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1208 transitions. [2018-10-23 23:18:00,638 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1208 transitions. Word has length 152 [2018-10-23 23:18:00,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:18:00,638 INFO L481 AbstractCegarLoop]: Abstraction has 807 states and 1208 transitions. [2018-10-23 23:18:00,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:18:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1208 transitions. [2018-10-23 23:18:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-23 23:18:00,643 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:18:00,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:18:00,643 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:18:00,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:18:00,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2056126657, now seen corresponding path program 1 times [2018-10-23 23:18:00,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:18:00,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:18:00,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:18:00,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:18:00,645 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:18:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:18:01,045 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-23 23:18:01,270 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-23 23:18:01,356 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:18:01,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:18:01,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:18:01,357 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:18:01,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:18:01,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:18:01,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:18:01,358 INFO L87 Difference]: Start difference. First operand 807 states and 1208 transitions. Second operand 5 states. [2018-10-23 23:18:02,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:18:02,519 INFO L93 Difference]: Finished difference Result 1753 states and 2669 transitions. [2018-10-23 23:18:02,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:18:02,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2018-10-23 23:18:02,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:18:02,529 INFO L225 Difference]: With dead ends: 1753 [2018-10-23 23:18:02,529 INFO L226 Difference]: Without dead ends: 804 [2018-10-23 23:18:02,533 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:18:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2018-10-23 23:18:02,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2018-10-23 23:18:02,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2018-10-23 23:18:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1190 transitions. [2018-10-23 23:18:02,574 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1190 transitions. Word has length 154 [2018-10-23 23:18:02,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:18:02,574 INFO L481 AbstractCegarLoop]: Abstraction has 804 states and 1190 transitions. [2018-10-23 23:18:02,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:18:02,575 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1190 transitions. [2018-10-23 23:18:02,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-23 23:18:02,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:18:02,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:18:02,579 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:18:02,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:18:02,579 INFO L82 PathProgramCache]: Analyzing trace with hash 870908741, now seen corresponding path program 1 times [2018-10-23 23:18:02,579 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:18:02,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:18:02,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:18:02,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:18:02,581 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:18:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:18:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:18:02,887 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:18:02,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 23:18:02,888 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:18:02,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 23:18:02,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 23:18:02,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:18:02,889 INFO L87 Difference]: Start difference. First operand 804 states and 1190 transitions. Second operand 5 states. [2018-10-23 23:18:03,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:18:03,808 INFO L93 Difference]: Finished difference Result 1747 states and 2630 transitions. [2018-10-23 23:18:03,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 23:18:03,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2018-10-23 23:18:03,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:18:03,815 INFO L225 Difference]: With dead ends: 1747 [2018-10-23 23:18:03,815 INFO L226 Difference]: Without dead ends: 801 [2018-10-23 23:18:03,819 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 23:18:03,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2018-10-23 23:18:03,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2018-10-23 23:18:03,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 801 states. [2018-10-23 23:18:03,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1169 transitions. [2018-10-23 23:18:03,844 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1169 transitions. Word has length 156 [2018-10-23 23:18:03,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:18:03,845 INFO L481 AbstractCegarLoop]: Abstraction has 801 states and 1169 transitions. [2018-10-23 23:18:03,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 23:18:03,845 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1169 transitions. [2018-10-23 23:18:03,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-10-23 23:18:03,849 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:18:03,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:18:03,849 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:18:03,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:18:03,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1832642483, now seen corresponding path program 1 times [2018-10-23 23:18:03,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:18:03,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:18:03,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:18:03,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:18:03,851 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:18:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:18:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:18:04,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:18:04,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:18:04,026 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:18:04,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:18:04,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:18:04,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:18:04,027 INFO L87 Difference]: Start difference. First operand 801 states and 1169 transitions. Second operand 6 states. [2018-10-23 23:18:06,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:18:06,348 INFO L93 Difference]: Finished difference Result 2381 states and 3621 transitions. [2018-10-23 23:18:06,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:18:06,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2018-10-23 23:18:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:18:06,361 INFO L225 Difference]: With dead ends: 2381 [2018-10-23 23:18:06,362 INFO L226 Difference]: Without dead ends: 1586 [2018-10-23 23:18:06,367 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:18:06,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2018-10-23 23:18:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1558. [2018-10-23 23:18:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1558 states. [2018-10-23 23:18:06,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2225 transitions. [2018-10-23 23:18:06,423 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2225 transitions. Word has length 160 [2018-10-23 23:18:06,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:18:06,423 INFO L481 AbstractCegarLoop]: Abstraction has 1558 states and 2225 transitions. [2018-10-23 23:18:06,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:18:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2225 transitions. [2018-10-23 23:18:06,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-10-23 23:18:06,429 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:18:06,429 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:18:06,429 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:18:06,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:18:06,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1875339242, now seen corresponding path program 1 times [2018-10-23 23:18:06,430 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:18:06,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:18:06,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:18:06,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:18:06,431 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:18:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:18:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:18:06,671 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:18:06,671 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:18:06,672 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 167 with the following transitions: [2018-10-23 23:18:06,675 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [703], [705], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-23 23:18:06,754 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:18:06,755 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:19:22,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:19:22,785 INFO L272 AbstractInterpreter]: Visited 133 different actions 520 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-10-23 23:19:22,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:19:22,800 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:19:28,890 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 91.67% of their original sizes. [2018-10-23 23:19:28,890 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-23 23:22:06,981 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:22:06,986 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:22:06,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:22:06 BoogieIcfgContainer [2018-10-23 23:22:06,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:22:06,987 INFO L168 Benchmark]: Toolchain (without parser) took 261817.28 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.5 GB). Peak memory consumption was 552.5 MB. Max. memory is 7.1 GB. [2018-10-23 23:22:06,989 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. [2018-10-23 23:22:06,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-23 23:22:06,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.58 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. [2018-10-23 23:22:06,991 INFO L168 Benchmark]: Boogie Preprocessor took 207.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2018-10-23 23:22:06,992 INFO L168 Benchmark]: RCFGBuilder took 3590.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 7.1 GB. [2018-10-23 23:22:06,992 INFO L168 Benchmark]: TraceAbstraction took 257161.31 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -891.3 MB). Peak memory consumption was 470.3 MB. Max. memory is 7.1 GB. [2018-10-23 23:22:06,998 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 765.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 85.58 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. * Boogie Preprocessor took 207.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3590.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257161.31 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -891.3 MB). Peak memory consumption was 470.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 538]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 538). Cancelled while BasicCegarLoop was analyzing trace of length 167 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 257.0s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 12.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 854 SDtfs, 3993 SDslu, 687 SDs, 0 SdLazy, 5049 SolverSat, 1075 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1558occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 76.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9943876891245316 AbsIntWeakeningRatio, 0.2 AbsIntAvgWeakeningVarsNumRemoved, 1322.9272727272728 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1033 NumberOfCodeBlocks, 1033 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1026 ConstructedInterpolants, 0 QuantifiedInterpolants, 1195400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 112/112 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown