java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:33:01,575 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:33:01,578 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:33:01,597 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:33:01,598 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:33:01,599 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:33:01,603 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:33:01,604 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:33:01,607 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:33:01,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:33:01,611 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:33:01,612 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:33:01,613 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:33:01,613 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:33:01,621 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:33:01,623 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:33:01,624 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:33:01,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:33:01,629 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:33:01,631 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:33:01,632 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:33:01,633 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:33:01,638 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 03:33:01,646 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:33:01,646 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:33:01,647 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:33:01,648 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:33:01,648 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:33:01,663 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:33:01,663 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:33:01,664 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:33:01,664 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:33:01,664 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:33:01,664 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:33:01,665 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:33:01,665 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:33:01,665 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:33:01,665 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:33:01,665 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:33:01,666 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:33:01,666 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:33:01,666 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:33:01,667 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:33:01,667 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:33:01,667 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:33:01,667 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:33:01,667 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:33:01,667 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:33:01,668 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:33:01,668 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:33:01,668 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:33:01,668 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:33:01,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:33:01,669 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:33:01,669 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:33:01,669 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:33:01,669 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:33:01,669 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:33:01,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:33:01,670 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:33:01,670 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:33:01,670 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:33:01,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:33:01,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:33:01,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:33:01,742 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:33:01,742 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:33:01,743 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label16_true-unreach-call.c [2018-11-07 03:33:01,811 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fea8113e/25b2c21d645845cebdb736e7a30c6d86/FLAGab2fffa30 [2018-11-07 03:33:02,443 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:33:02,444 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label16_true-unreach-call.c [2018-11-07 03:33:02,465 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fea8113e/25b2c21d645845cebdb736e7a30c6d86/FLAGab2fffa30 [2018-11-07 03:33:02,481 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fea8113e/25b2c21d645845cebdb736e7a30c6d86 [2018-11-07 03:33:02,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:33:02,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:33:02,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:33:02,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:33:02,501 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:33:02,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:33:02" (1/1) ... [2018-11-07 03:33:02,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5faf74f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:02, skipping insertion in model container [2018-11-07 03:33:02,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:33:02" (1/1) ... [2018-11-07 03:33:02,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:33:02,601 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:33:03,392 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:33:03,397 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:33:03,697 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:33:03,720 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:33:03,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03 WrapperNode [2018-11-07 03:33:03,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:33:03,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:33:03,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:33:03,722 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:33:03,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:03,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:03,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:33:03,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:33:03,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:33:03,935 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:33:03,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:03,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:03,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:03,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:04,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:04,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:04,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... [2018-11-07 03:33:04,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:33:04,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:33:04,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:33:04,123 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:33:04,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:33:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:33:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:33:04,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:33:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:33:04,210 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:33:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:33:04,210 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:33:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:33:04,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:33:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:33:04,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:33:10,915 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:33:10,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:33:10 BoogieIcfgContainer [2018-11-07 03:33:10,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:33:10,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:33:10,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:33:10,921 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:33:10,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:33:02" (1/3) ... [2018-11-07 03:33:10,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301474fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:33:10, skipping insertion in model container [2018-11-07 03:33:10,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:33:03" (2/3) ... [2018-11-07 03:33:10,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301474fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:33:10, skipping insertion in model container [2018-11-07 03:33:10,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:33:10" (3/3) ... [2018-11-07 03:33:10,925 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label16_true-unreach-call.c [2018-11-07 03:33:10,935 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:33:10,944 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:33:10,964 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:33:11,008 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:33:11,008 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:33:11,008 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:33:11,008 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:33:11,009 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:33:11,009 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:33:11,009 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:33:11,009 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:33:11,045 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 03:33:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-07 03:33:11,057 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:33:11,058 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] [2018-11-07 03:33:11,061 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:33:11,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:33:11,068 INFO L82 PathProgramCache]: Analyzing trace with hash 539142097, now seen corresponding path program 1 times [2018-11-07 03:33:11,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:33:11,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:33:11,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:33:11,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:33:11,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:33:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:33:11,643 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:33:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:33:11,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:33:11,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:33:11,841 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:33:11,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:33:11,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:33:11,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:33:11,867 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-11-07 03:33:15,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:33:15,749 INFO L93 Difference]: Finished difference Result 1193 states and 2149 transitions. [2018-11-07 03:33:15,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:33:15,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-11-07 03:33:15,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:33:15,839 INFO L225 Difference]: With dead ends: 1193 [2018-11-07 03:33:15,839 INFO L226 Difference]: Without dead ends: 753 [2018-11-07 03:33:15,851 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:33:15,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2018-11-07 03:33:15,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 753. [2018-11-07 03:33:15,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2018-11-07 03:33:15,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1315 transitions. [2018-11-07 03:33:15,965 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1315 transitions. Word has length 69 [2018-11-07 03:33:15,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:33:15,966 INFO L480 AbstractCegarLoop]: Abstraction has 753 states and 1315 transitions. [2018-11-07 03:33:15,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:33:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1315 transitions. [2018-11-07 03:33:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 03:33:15,976 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:33:15,977 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, 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] [2018-11-07 03:33:15,977 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:33:15,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:33:15,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1189160704, now seen corresponding path program 1 times [2018-11-07 03:33:15,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:33:15,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:33:15,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:33:15,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:33:15,979 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:33:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:33:16,374 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:33:16,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:33:16,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:33:16,375 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:33:16,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:33:16,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:33:16,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:33:16,378 INFO L87 Difference]: Start difference. First operand 753 states and 1315 transitions. Second operand 5 states. [2018-11-07 03:33:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:33:25,070 INFO L93 Difference]: Finished difference Result 2820 states and 5075 transitions. [2018-11-07 03:33:25,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 03:33:25,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2018-11-07 03:33:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:33:25,097 INFO L225 Difference]: With dead ends: 2820 [2018-11-07 03:33:25,097 INFO L226 Difference]: Without dead ends: 2073 [2018-11-07 03:33:25,106 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:33:25,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2018-11-07 03:33:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2045. [2018-11-07 03:33:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2045 states. [2018-11-07 03:33:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 3207 transitions. [2018-11-07 03:33:25,207 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 3207 transitions. Word has length 149 [2018-11-07 03:33:25,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:33:25,208 INFO L480 AbstractCegarLoop]: Abstraction has 2045 states and 3207 transitions. [2018-11-07 03:33:25,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:33:25,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 3207 transitions. [2018-11-07 03:33:25,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-07 03:33:25,220 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:33:25,222 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, 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] [2018-11-07 03:33:25,223 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:33:25,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:33:25,223 INFO L82 PathProgramCache]: Analyzing trace with hash -719504888, now seen corresponding path program 1 times [2018-11-07 03:33:25,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:33:25,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:33:25,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:33:25,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:33:25,225 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:33:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:33:25,490 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:33:25,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:33:25,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:33:25,491 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:33:25,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:33:25,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:33:25,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:33:25,493 INFO L87 Difference]: Start difference. First operand 2045 states and 3207 transitions. Second operand 6 states. [2018-11-07 03:33:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:33:33,163 INFO L93 Difference]: Finished difference Result 6269 states and 10277 transitions. [2018-11-07 03:33:33,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 03:33:33,164 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2018-11-07 03:33:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:33:33,193 INFO L225 Difference]: With dead ends: 6269 [2018-11-07 03:33:33,194 INFO L226 Difference]: Without dead ends: 4230 [2018-11-07 03:33:33,213 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 03:33:33,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4230 states. [2018-11-07 03:33:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4230 to 4171. [2018-11-07 03:33:33,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4171 states. [2018-11-07 03:33:33,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4171 states to 4171 states and 6114 transitions. [2018-11-07 03:33:33,336 INFO L78 Accepts]: Start accepts. Automaton has 4171 states and 6114 transitions. Word has length 153 [2018-11-07 03:33:33,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:33:33,337 INFO L480 AbstractCegarLoop]: Abstraction has 4171 states and 6114 transitions. [2018-11-07 03:33:33,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:33:33,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4171 states and 6114 transitions. [2018-11-07 03:33:33,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-07 03:33:33,344 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:33:33,344 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 03:33:33,344 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:33:33,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:33:33,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1335578740, now seen corresponding path program 1 times [2018-11-07 03:33:33,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:33:33,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:33:33,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:33:33,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:33:33,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:33:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:33:33,656 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 127 proven. 61 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 03:33:33,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:33:33,657 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:33:33,658 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-11-07 03:33:33,660 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [525], [527], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 03:33:33,733 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:33:33,733 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:33:35,390 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:33:35,763 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:33:35,764 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 03:33:35,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:33:35,774 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:33:37,878 INFO L227 lantSequenceWeakener]: Weakened 211 states. On average, predicates are now at 78.46% of their original sizes. [2018-11-07 03:33:37,878 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:33:38,335 INFO L415 sIntCurrentIteration]: We unified 218 AI predicates to 218 [2018-11-07 03:33:38,335 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:33:38,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:33:38,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 03:33:38,337 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:33:38,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 03:33:38,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 03:33:38,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:33:38,338 INFO L87 Difference]: Start difference. First operand 4171 states and 6114 transitions. Second operand 7 states. [2018-11-07 03:34:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:34:46,647 INFO L93 Difference]: Finished difference Result 8646 states and 12576 transitions. [2018-11-07 03:34:46,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:34:46,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2018-11-07 03:34:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:34:46,668 INFO L225 Difference]: With dead ends: 8646 [2018-11-07 03:34:46,668 INFO L226 Difference]: Without dead ends: 4481 [2018-11-07 03:34:46,679 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:34:46,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2018-11-07 03:34:46,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 4479. [2018-11-07 03:34:46,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4479 states. [2018-11-07 03:34:46,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4479 states to 4479 states and 6430 transitions. [2018-11-07 03:34:46,793 INFO L78 Accepts]: Start accepts. Automaton has 4479 states and 6430 transitions. Word has length 219 [2018-11-07 03:34:46,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:34:46,793 INFO L480 AbstractCegarLoop]: Abstraction has 4479 states and 6430 transitions. [2018-11-07 03:34:46,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 03:34:46,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4479 states and 6430 transitions. [2018-11-07 03:34:46,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-11-07 03:34:46,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:34:46,800 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:34:46,800 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:34:46,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:34:46,801 INFO L82 PathProgramCache]: Analyzing trace with hash -378898114, now seen corresponding path program 1 times [2018-11-07 03:34:46,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:34:46,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:34:46,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:34:46,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:34:46,802 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:34:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:34:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 125 proven. 77 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 03:34:47,432 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:34:47,433 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:34:47,433 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 250 with the following transitions: [2018-11-07 03:34:47,434 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [525], [527], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 03:34:47,441 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:34:47,441 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:34:48,368 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:34:55,906 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:34:55,906 INFO L272 AbstractInterpreter]: Visited 104 different actions 299 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:34:55,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:34:55,913 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:34:59,095 INFO L227 lantSequenceWeakener]: Weakened 56 states. On average, predicates are now at 79.14% of their original sizes. [2018-11-07 03:34:59,095 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 03:36:56,903 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:36:56,912 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:36:56,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:36:56 BoogieIcfgContainer [2018-11-07 03:36:56,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:36:56,914 INFO L168 Benchmark]: Toolchain (without parser) took 234419.60 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-07 03:36:56,915 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:36:56,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1224.97 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:36:56,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 212.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -892.8 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:36:56,920 INFO L168 Benchmark]: Boogie Preprocessor took 187.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-07 03:36:56,925 INFO L168 Benchmark]: RCFGBuilder took 6793.32 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 295.9 MB). Peak memory consumption was 295.9 MB. Max. memory is 7.1 GB. [2018-11-07 03:36:56,926 INFO L168 Benchmark]: TraceAbstraction took 225996.08 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-07 03:36:56,936 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1224.97 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 212.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -892.8 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 187.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6793.32 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 295.9 MB). Peak memory consumption was 295.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225996.08 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 193]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 193). Cancelled while BasicCegarLoop was analyzing trace of length 250 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 225.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 88.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 994 SDtfs, 3991 SDslu, 894 SDs, 0 SdLazy, 8469 SolverSat, 1678 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 245 GetRequests, 222 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4479occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 10.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9953038502208122 AbsIntWeakeningRatio, 0.11158798283261803 AbsIntAvgWeakeningVarsNumRemoved, 475.42489270386267 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 89 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 590 NumberOfCodeBlocks, 590 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 586 ConstructedInterpolants, 0 QuantifiedInterpolants, 400568 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 257/318 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown