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_label34_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:25:45,652 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:25:45,654 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:25:45,675 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:25:45,676 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:25:45,678 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:25:45,679 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:25:45,681 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:25:45,684 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:25:45,684 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:25:45,687 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:25:45,687 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:25:45,688 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:25:45,689 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:25:45,693 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:25:45,694 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:25:45,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:25:45,704 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:25:45,706 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:25:45,711 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:25:45,714 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:25:45,716 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:25:45,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 23:25:45,733 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 23:25:45,763 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:25:45,764 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:25:45,766 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:25:45,766 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:25:45,766 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:25:45,766 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:25:45,766 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:25:45,767 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:25:45,767 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:25:45,767 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:25:45,767 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:25:45,768 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:25:45,768 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:25:45,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:25:45,769 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:25:45,769 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:25:45,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:25:45,769 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:25:45,769 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:25:45,770 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:25:45,770 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:25:45,770 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:25:45,770 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:25:45,770 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:25:45,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:25:45,771 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:25:45,771 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:25:45,771 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:25:45,771 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:25:45,772 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:25:45,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:25:45,772 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:25:45,772 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:25:45,772 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:25:45,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:25:45,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:25:45,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:25:45,859 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:25:45,860 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:25:45,860 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label34_true-unreach-call_false-termination.c [2018-10-23 23:25:45,937 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6cc2cb0c0/aae0f06fa6a144c2b5fd6fa145470e61/FLAG9d6dbbda0 [2018-10-23 23:25:46,587 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:25:46,588 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label34_true-unreach-call_false-termination.c [2018-10-23 23:25:46,603 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6cc2cb0c0/aae0f06fa6a144c2b5fd6fa145470e61/FLAG9d6dbbda0 [2018-10-23 23:25:46,624 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6cc2cb0c0/aae0f06fa6a144c2b5fd6fa145470e61 [2018-10-23 23:25:46,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:25:46,641 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:25:46,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:25:46,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:25:46,647 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:25:46,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:25:46" (1/1) ... [2018-10-23 23:25:46,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14942e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:46, skipping insertion in model container [2018-10-23 23:25:46,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:25:46" (1/1) ... [2018-10-23 23:25:46,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:25:46,724 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:25:47,260 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:25:47,266 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:25:47,410 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:25:47,427 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:25:47,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47 WrapperNode [2018-10-23 23:25:47,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:25:47,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:25:47,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:25:47,429 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:25:47,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:25:47,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:25:47,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:25:47,632 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:25:47,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (1/1) ... [2018-10-23 23:25:47,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:25:47,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:25:47,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:25:47,720 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:25:47,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (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 23:25:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:25:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:25:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:25:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:25:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:25:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:25:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:25:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:25:51,049 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:25:51,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:25:51 BoogieIcfgContainer [2018-10-23 23:25:51,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:25:51,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:25:51,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:25:51,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:25:51,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:25:46" (1/3) ... [2018-10-23 23:25:51,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a74d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:25:51, skipping insertion in model container [2018-10-23 23:25:51,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:47" (2/3) ... [2018-10-23 23:25:51,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a74d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:25:51, skipping insertion in model container [2018-10-23 23:25:51,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:25:51" (3/3) ... [2018-10-23 23:25:51,060 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label34_true-unreach-call_false-termination.c [2018-10-23 23:25:51,070 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:25:51,080 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:25:51,098 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:25:51,146 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:25:51,146 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:25:51,146 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:25:51,147 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:25:51,147 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:25:51,147 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:25:51,147 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:25:51,147 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:25:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-23 23:25:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-23 23:25:51,193 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:51,194 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] [2018-10-23 23:25:51,197 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:51,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:51,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2048669081, now seen corresponding path program 1 times [2018-10-23 23:25:51,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:51,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:51,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:51,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:51,261 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:51,916 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:25:51,990 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 23:25:51,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:25:51,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:25:51,993 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:51,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:25:52,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:25:52,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:25:52,019 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-23 23:25:53,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:25:53,459 INFO L93 Difference]: Finished difference Result 618 states and 1056 transitions. [2018-10-23 23:25:53,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:25:53,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2018-10-23 23:25:53,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:25:53,483 INFO L225 Difference]: With dead ends: 618 [2018-10-23 23:25:53,483 INFO L226 Difference]: Without dead ends: 379 [2018-10-23 23:25:53,491 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:25:53,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2018-10-23 23:25:53,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2018-10-23 23:25:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-10-23 23:25:53,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 621 transitions. [2018-10-23 23:25:53,582 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 621 transitions. Word has length 105 [2018-10-23 23:25:53,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:25:53,583 INFO L481 AbstractCegarLoop]: Abstraction has 379 states and 621 transitions. [2018-10-23 23:25:53,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:25:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 621 transitions. [2018-10-23 23:25:53,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-23 23:25:53,597 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:53,597 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 23:25:53,599 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:53,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:53,599 INFO L82 PathProgramCache]: Analyzing trace with hash -926147150, now seen corresponding path program 1 times [2018-10-23 23:25:53,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:53,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:53,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:53,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:53,603 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:25:53,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:25:53,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:25:53,813 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:53,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:25:53,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:25:53,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:25:53,816 INFO L87 Difference]: Start difference. First operand 379 states and 621 transitions. Second operand 6 states. [2018-10-23 23:25:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:25:55,701 INFO L93 Difference]: Finished difference Result 1231 states and 2094 transitions. [2018-10-23 23:25:55,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 23:25:55,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-10-23 23:25:55,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:25:55,716 INFO L225 Difference]: With dead ends: 1231 [2018-10-23 23:25:55,716 INFO L226 Difference]: Without dead ends: 858 [2018-10-23 23:25:55,721 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:25:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2018-10-23 23:25:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 821. [2018-10-23 23:25:55,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2018-10-23 23:25:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1290 transitions. [2018-10-23 23:25:55,790 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1290 transitions. Word has length 121 [2018-10-23 23:25:55,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:25:55,790 INFO L481 AbstractCegarLoop]: Abstraction has 821 states and 1290 transitions. [2018-10-23 23:25:55,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:25:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1290 transitions. [2018-10-23 23:25:55,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-23 23:25:55,798 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:55,798 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] [2018-10-23 23:25:55,798 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:55,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:55,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1688257955, now seen corresponding path program 1 times [2018-10-23 23:25:55,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:55,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:55,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:55,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:55,801 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:56,095 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:25:56,193 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 23:25:56,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:25:56,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:25:56,194 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:56,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:25:56,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:25:56,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:25:56,196 INFO L87 Difference]: Start difference. First operand 821 states and 1290 transitions. Second operand 6 states. [2018-10-23 23:25:59,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:25:59,997 INFO L93 Difference]: Finished difference Result 2553 states and 4218 transitions. [2018-10-23 23:25:59,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:25:59,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-10-23 23:25:59,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:26:00,017 INFO L225 Difference]: With dead ends: 2553 [2018-10-23 23:26:00,017 INFO L226 Difference]: Without dead ends: 1738 [2018-10-23 23:26:00,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 23:26:00,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-10-23 23:26:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1680. [2018-10-23 23:26:00,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2018-10-23 23:26:00,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2538 transitions. [2018-10-23 23:26:00,108 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2538 transitions. Word has length 128 [2018-10-23 23:26:00,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:26:00,108 INFO L481 AbstractCegarLoop]: Abstraction has 1680 states and 2538 transitions. [2018-10-23 23:26:00,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:26:00,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2538 transitions. [2018-10-23 23:26:00,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-23 23:26:00,120 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:26:00,120 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:26:00,122 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:26:00,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:26:00,122 INFO L82 PathProgramCache]: Analyzing trace with hash -690130107, now seen corresponding path program 1 times [2018-10-23 23:26:00,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:26:00,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:26:00,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:26:00,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:26:00,123 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:26:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:26:00,322 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 23:26:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-23 23:26:00,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:26:00,354 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:26:00,355 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-10-23 23:26:00,358 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [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], [511], [513], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-23 23:26:00,435 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:26:00,436 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:26:10,919 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:26:10,921 INFO L272 AbstractInterpreter]: Visited 106 different actions 106 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-10-23 23:26:10,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:26:10,933 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:26:14,821 INFO L232 lantSequenceWeakener]: Weakened 109 states. On average, predicates are now at 81.18% of their original sizes. [2018-10-23 23:26:14,821 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 23:26:18,966 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 23:26:18,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 23:26:18,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-23 23:26:18,968 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:26:18,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-23 23:26:18,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-23 23:26:18,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-10-23 23:26:18,969 INFO L87 Difference]: Start difference. First operand 1680 states and 2538 transitions. Second operand 13 states. [2018-10-23 23:27:48,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:27:48,292 INFO L93 Difference]: Finished difference Result 3652 states and 5496 transitions. [2018-10-23 23:27:48,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-23 23:27:48,292 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2018-10-23 23:27:48,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:27:48,303 INFO L225 Difference]: With dead ends: 3652 [2018-10-23 23:27:48,304 INFO L226 Difference]: Without dead ends: 1978 [2018-10-23 23:27:48,310 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2018-10-23 23:27:48,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2018-10-23 23:27:48,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1825. [2018-10-23 23:27:48,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1825 states. [2018-10-23 23:27:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2690 transitions. [2018-10-23 23:27:48,451 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2690 transitions. Word has length 130 [2018-10-23 23:27:48,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:27:48,452 INFO L481 AbstractCegarLoop]: Abstraction has 1825 states and 2690 transitions. [2018-10-23 23:27:48,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-23 23:27:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2690 transitions. [2018-10-23 23:27:48,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-23 23:27:48,457 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:27:48,458 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-10-23 23:27:48,458 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:27:48,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:27:48,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1874144486, now seen corresponding path program 1 times [2018-10-23 23:27:48,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:27:48,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:27:48,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:27:48,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:27:48,460 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:27:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:27:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 32 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 23:27:48,763 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:27:48,763 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:27:48,763 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-10-23 23:27:48,763 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [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], [511], [513], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-23 23:27:48,768 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:27:48,769 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:28:50,878 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:28:50,878 INFO L272 AbstractInterpreter]: Visited 110 different actions 428 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 23:28:50,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:28:50,889 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:28:56,545 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 83.97% of their original sizes. [2018-10-23 23:28:56,545 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-23 23:30:03,414 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:30:03,419 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:30:03,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:30:03 BoogieIcfgContainer [2018-10-23 23:30:03,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:30:03,421 INFO L168 Benchmark]: Toolchain (without parser) took 256781.15 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 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-23 23:30:03,422 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 23:30:03,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.83 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 23:30:03,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.84 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2018-10-23 23:30:03,425 INFO L168 Benchmark]: Boogie Preprocessor took 87.01 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 23:30:03,425 INFO L168 Benchmark]: RCFGBuilder took 3331.29 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: 116.2 MB). Peak memory consumption was 116.2 MB. Max. memory is 7.1 GB. [2018-10-23 23:30:03,426 INFO L168 Benchmark]: TraceAbstraction took 252368.40 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-23 23:30:03,432 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 785.83 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 199.84 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.01 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3331.29 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: 116.2 MB). Peak memory consumption was 116.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252368.40 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 466]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 466). Cancelled while BasicCegarLoop was analyzing trace of length 141 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 16 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 252.2s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 96.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 649 SDtfs, 2913 SDslu, 527 SDs, 0 SdLazy, 2779 SolverSat, 681 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 165 GetRequests, 124 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1825occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 72.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9928902783380394 AbsIntWeakeningRatio, 0.26865671641791045 AbsIntAvgWeakeningVarsNumRemoved, 1192.4179104477612 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 248 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 484 NumberOfCodeBlocks, 484 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 480 ConstructedInterpolants, 0 QuantifiedInterpolants, 132486 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 59/61 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown