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/Problem11_label48_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:09:56,770 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:09:56,774 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:09:56,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:09:56,788 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:09:56,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:09:56,791 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:09:56,793 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:09:56,795 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:09:56,795 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:09:56,796 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:09:56,797 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:09:56,798 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:09:56,799 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:09:56,800 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:09:56,800 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:09:56,801 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:09:56,803 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:09:56,805 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:09:56,807 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:09:56,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:09:56,809 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:09:56,812 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 01:09:56,822 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 01:09:56,845 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:09:56,846 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:09:56,847 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:09:56,847 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:09:56,847 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:09:56,847 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:09:56,847 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:09:56,849 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:09:56,849 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:09:56,849 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:09:56,850 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:09:56,850 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:09:56,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:09:56,851 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:09:56,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:09:56,851 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:09:56,851 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:09:56,851 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:09:56,852 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:09:56,852 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:09:56,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:09:56,852 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:09:56,852 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:09:56,853 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:09:56,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:09:56,853 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:09:56,854 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:09:56,854 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:09:56,854 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:09:56,854 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:09:56,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:09:56,855 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:09:56,855 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:09:56,855 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:09:56,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:09:56,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:09:56,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:09:56,937 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:09:56,938 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:09:56,939 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label48_true-unreach-call.c [2018-10-24 01:09:57,005 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/622f22ca4/06e1c52c8dd84156a4553484c2037654/FLAGbce1df3f6 [2018-10-24 01:09:57,619 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:09:57,620 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label48_true-unreach-call.c [2018-10-24 01:09:57,635 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/622f22ca4/06e1c52c8dd84156a4553484c2037654/FLAGbce1df3f6 [2018-10-24 01:09:57,651 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/622f22ca4/06e1c52c8dd84156a4553484c2037654 [2018-10-24 01:09:57,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:09:57,665 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:09:57,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:09:57,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:09:57,670 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:09:57,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:09:57" (1/1) ... [2018-10-24 01:09:57,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322d085d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:57, skipping insertion in model container [2018-10-24 01:09:57,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:09:57" (1/1) ... [2018-10-24 01:09:57,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:09:57,759 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:09:58,379 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:09:58,389 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:09:58,607 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:09:58,627 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:09:58,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58 WrapperNode [2018-10-24 01:09:58,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:09:58,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:09:58,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:09:58,629 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:09:58,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:58,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:58,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:09:58,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:09:58,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:09:58,947 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:09:58,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:58,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:58,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:58,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:59,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:59,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:59,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... [2018-10-24 01:09:59,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:09:59,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:09:59,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:09:59,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:09:59,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:09:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:09:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:09:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:09:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:09:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:09:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:09:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:09:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:10:03,512 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:10:03,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:10:03 BoogieIcfgContainer [2018-10-24 01:10:03,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:10:03,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:10:03,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:10:03,518 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:10:03,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:09:57" (1/3) ... [2018-10-24 01:10:03,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794c1778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:10:03, skipping insertion in model container [2018-10-24 01:10:03,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:09:58" (2/3) ... [2018-10-24 01:10:03,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794c1778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:10:03, skipping insertion in model container [2018-10-24 01:10:03,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:10:03" (3/3) ... [2018-10-24 01:10:03,522 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label48_true-unreach-call.c [2018-10-24 01:10:03,533 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:10:03,545 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:10:03,564 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:10:03,608 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:10:03,609 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:10:03,609 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:10:03,609 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:10:03,609 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:10:03,610 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:10:03,610 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:10:03,610 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:10:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 01:10:03,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-24 01:10:03,657 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:10:03,658 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] [2018-10-24 01:10:03,661 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:10:03,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:10:03,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1192581977, now seen corresponding path program 1 times [2018-10-24 01:10:03,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:10:03,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:03,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:10:03,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:03,727 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:10:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:10:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:10:04,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:10:04,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:10:04,229 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:10:04,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:10:04,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:10:04,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:10:04,255 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 01:10:07,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:10:07,663 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-10-24 01:10:07,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:10:07,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-10-24 01:10:07,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:10:07,689 INFO L225 Difference]: With dead ends: 979 [2018-10-24 01:10:07,690 INFO L226 Difference]: Without dead ends: 680 [2018-10-24 01:10:07,702 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:10:07,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-10-24 01:10:07,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-10-24 01:10:07,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-10-24 01:10:07,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-10-24 01:10:07,800 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 57 [2018-10-24 01:10:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:10:07,801 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-10-24 01:10:07,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:10:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-10-24 01:10:07,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-24 01:10:07,809 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:10:07,809 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, 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] [2018-10-24 01:10:07,810 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:10:07,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:10:07,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1879663307, now seen corresponding path program 1 times [2018-10-24 01:10:07,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:10:07,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:07,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:10:07,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:07,812 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:10:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:10:08,098 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:10:08,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:10:08,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:10:08,099 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:10:08,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:10:08,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:10:08,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:10:08,102 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-10-24 01:10:12,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:10:12,001 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-10-24 01:10:12,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:10:12,003 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-10-24 01:10:12,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:10:12,012 INFO L225 Difference]: With dead ends: 1555 [2018-10-24 01:10:12,013 INFO L226 Difference]: Without dead ends: 1077 [2018-10-24 01:10:12,017 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 [2018-10-24 01:10:12,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-10-24 01:10:12,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-10-24 01:10:12,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-10-24 01:10:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-10-24 01:10:12,067 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 130 [2018-10-24 01:10:12,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:10:12,067 INFO L481 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-10-24 01:10:12,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:10:12,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-10-24 01:10:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-24 01:10:12,073 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:10:12,073 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, 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] [2018-10-24 01:10:12,074 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:10:12,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:10:12,074 INFO L82 PathProgramCache]: Analyzing trace with hash -399877285, now seen corresponding path program 1 times [2018-10-24 01:10:12,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:10:12,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:12,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:10:12,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:12,076 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:10:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:10:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:10:12,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:10:12,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:10:12,424 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:10:12,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:10:12,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:10:12,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:10:12,425 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 6 states. [2018-10-24 01:10:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:10:18,556 INFO L93 Difference]: Finished difference Result 3493 states and 5404 transitions. [2018-10-24 01:10:18,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:10:18,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-24 01:10:18,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:10:18,584 INFO L225 Difference]: With dead ends: 3493 [2018-10-24 01:10:18,584 INFO L226 Difference]: Without dead ends: 2436 [2018-10-24 01:10:18,592 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 01:10:18,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2018-10-24 01:10:18,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2393. [2018-10-24 01:10:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2393 states. [2018-10-24 01:10:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3322 transitions. [2018-10-24 01:10:18,673 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3322 transitions. Word has length 138 [2018-10-24 01:10:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:10:18,675 INFO L481 AbstractCegarLoop]: Abstraction has 2393 states and 3322 transitions. [2018-10-24 01:10:18,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:10:18,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3322 transitions. [2018-10-24 01:10:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 01:10:18,683 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:10:18,684 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 01:10:18,685 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:10:18,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:10:18,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1244588704, now seen corresponding path program 1 times [2018-10-24 01:10:18,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:10:18,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:18,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:10:18,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:18,688 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:10:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:10:19,294 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 01:10:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 100 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 01:10:19,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:10:19,558 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:10:19,559 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-10-24 01:10:19,561 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [538], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:10:19,635 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:10:19,635 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:10:21,535 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:10:22,928 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:10:22,930 INFO L272 AbstractInterpreter]: Visited 86 different actions 86 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 01:10:23,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:10:23,037 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:10:25,915 INFO L232 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 73.8% of their original sizes. [2018-10-24 01:10:25,916 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:10:26,422 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:10:26,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:10:26,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-24 01:10:26,423 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:10:26,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 01:10:26,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 01:10:26,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 01:10:26,426 INFO L87 Difference]: Start difference. First operand 2393 states and 3322 transitions. Second operand 7 states. [2018-10-24 01:10:46,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:10:46,597 INFO L93 Difference]: Finished difference Result 4972 states and 6853 transitions. [2018-10-24 01:10:46,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:10:46,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2018-10-24 01:10:46,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:10:46,612 INFO L225 Difference]: With dead ends: 4972 [2018-10-24 01:10:46,612 INFO L226 Difference]: Without dead ends: 2585 [2018-10-24 01:10:46,619 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 01:10:46,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2018-10-24 01:10:46,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2583. [2018-10-24 01:10:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2583 states. [2018-10-24 01:10:46,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3521 transitions. [2018-10-24 01:10:46,692 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3521 transitions. Word has length 212 [2018-10-24 01:10:46,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:10:46,693 INFO L481 AbstractCegarLoop]: Abstraction has 2583 states and 3521 transitions. [2018-10-24 01:10:46,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 01:10:46,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3521 transitions. [2018-10-24 01:10:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-10-24 01:10:46,702 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:10:46,703 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 01:10:46,703 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:10:46,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:10:46,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1358707587, now seen corresponding path program 1 times [2018-10-24 01:10:46,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:10:46,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:46,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:10:46,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:10:46,706 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:10:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:10:47,306 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 01:10:47,650 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-24 01:10:47,650 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:10:47,651 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:10:47,651 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 256 with the following transitions: [2018-10-24 01:10:47,651 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [538], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:10:47,661 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:10:47,662 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:10:49,483 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:11:32,752 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 01:11:32,752 INFO L272 AbstractInterpreter]: Visited 126 different actions 858 times. Merged at 7 different actions 44 times. Widened at 1 different actions 2 times. Found 7 fixpoints after 2 different actions. Largest state had 28 variables. [2018-10-24 01:11:32,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:11:32,762 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 01:11:32,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:11:32,762 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 01:11:32,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:11:32,781 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 01:11:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:11:32,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 01:11:33,375 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:11:33,376 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 01:11:33,681 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-24 01:11:33,833 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-24 01:11:34,190 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:11:34,222 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 01:11:34,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-10-24 01:11:34,222 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 01:11:34,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 01:11:34,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 01:11:34,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-10-24 01:11:34,225 INFO L87 Difference]: Start difference. First operand 2583 states and 3521 transitions. Second operand 10 states. [2018-10-24 01:11:52,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:11:52,379 INFO L93 Difference]: Finished difference Result 15052 states and 23399 transitions. [2018-10-24 01:11:52,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-10-24 01:11:52,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 255 [2018-10-24 01:11:52,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:11:52,473 INFO L225 Difference]: With dead ends: 15052 [2018-10-24 01:11:52,474 INFO L226 Difference]: Without dead ends: 12665 [2018-10-24 01:11:52,514 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 533 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1687 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=880, Invalid=3950, Unknown=0, NotChecked=0, Total=4830 [2018-10-24 01:11:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12665 states. [2018-10-24 01:11:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12665 to 12371. [2018-10-24 01:11:52,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12371 states. [2018-10-24 01:11:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12371 states to 12371 states and 16369 transitions. [2018-10-24 01:11:52,852 INFO L78 Accepts]: Start accepts. Automaton has 12371 states and 16369 transitions. Word has length 255 [2018-10-24 01:11:52,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:11:52,853 INFO L481 AbstractCegarLoop]: Abstraction has 12371 states and 16369 transitions. [2018-10-24 01:11:52,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 01:11:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 12371 states and 16369 transitions. [2018-10-24 01:11:52,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-24 01:11:52,865 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:11:52,865 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:11:52,865 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:11:52,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:11:52,866 INFO L82 PathProgramCache]: Analyzing trace with hash -2050879004, now seen corresponding path program 1 times [2018-10-24 01:11:52,866 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:11:52,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:52,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:11:52,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:52,867 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:11:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:11:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-24 01:11:53,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:11:53,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:11:53,238 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:11:53,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:11:53,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:11:53,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:11:53,240 INFO L87 Difference]: Start difference. First operand 12371 states and 16369 transitions. Second operand 4 states. [2018-10-24 01:11:56,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:11:56,108 INFO L93 Difference]: Finished difference Result 33119 states and 46077 transitions. [2018-10-24 01:11:56,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:11:56,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 276 [2018-10-24 01:11:56,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:11:56,213 INFO L225 Difference]: With dead ends: 33119 [2018-10-24 01:11:56,213 INFO L226 Difference]: Without dead ends: 21135 [2018-10-24 01:11:56,266 INFO L605 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 [2018-10-24 01:11:56,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21135 states. [2018-10-24 01:11:56,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21135 to 19815. [2018-10-24 01:11:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19815 states. [2018-10-24 01:11:56,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19815 states to 19815 states and 25803 transitions. [2018-10-24 01:11:56,712 INFO L78 Accepts]: Start accepts. Automaton has 19815 states and 25803 transitions. Word has length 276 [2018-10-24 01:11:56,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:11:56,713 INFO L481 AbstractCegarLoop]: Abstraction has 19815 states and 25803 transitions. [2018-10-24 01:11:56,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:11:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand 19815 states and 25803 transitions. [2018-10-24 01:11:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-10-24 01:11:56,750 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:11:56,750 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:11:56,751 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:11:56,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:11:56,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1398455572, now seen corresponding path program 1 times [2018-10-24 01:11:56,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:11:56,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:56,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:11:56,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:11:56,753 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:11:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:11:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 228 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:11:57,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:11:57,968 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:11:57,968 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 339 with the following transitions: [2018-10-24 01:11:57,969 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [873], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:11:57,980 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:11:57,980 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:12:01,724 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:12:25,032 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:12:25,033 INFO L272 AbstractInterpreter]: Visited 159 different actions 464 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 01:12:25,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:12:25,039 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:12:28,964 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 77.04% of their original sizes. [2018-10-24 01:12:28,964 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 01:13:41,441 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:13:41,446 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:13:41,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:13:41 BoogieIcfgContainer [2018-10-24 01:13:41,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:13:41,447 INFO L168 Benchmark]: Toolchain (without parser) took 223783.80 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 771.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:13:41,448 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. [2018-10-24 01:13:41,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 962.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-10-24 01:13:41,450 INFO L168 Benchmark]: Boogie Procedure Inliner took 318.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -810.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-24 01:13:41,452 INFO L168 Benchmark]: Boogie Preprocessor took 162.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-10-24 01:13:41,452 INFO L168 Benchmark]: RCFGBuilder took 4403.74 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 180.7 MB). Peak memory consumption was 180.7 MB. Max. memory is 7.1 GB. [2018-10-24 01:13:41,453 INFO L168 Benchmark]: TraceAbstraction took 217931.94 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 602.2 MB. Max. memory is 7.1 GB. [2018-10-24 01:13:41,462 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 962.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 318.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -810.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4403.74 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 180.7 MB). Peak memory consumption was 180.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217931.94 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 602.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 156). Cancelled while BasicCegarLoop was analyzing trace of length 339 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, 293 locations, 1 error locations. TIMEOUT Result, 217.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 55.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1569 SDtfs, 8108 SDslu, 1747 SDs, 0 SdLazy, 17110 SolverSat, 3258 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 844 GetRequests, 751 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1696 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19815occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 75.6s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9962538137720621 AbsIntWeakeningRatio, 0.10401459854014598 AbsIntAvgWeakeningVarsNumRemoved, 1127.1660583941605 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1869 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1323 NumberOfCodeBlocks, 1323 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1570 ConstructedInterpolants, 0 QuantifiedInterpolants, 1209224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 843/1019 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown