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/Problem16_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:48:10,519 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:48:10,521 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:48:10,533 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:48:10,534 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:48:10,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:48:10,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:48:10,538 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:48:10,540 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:48:10,541 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:48:10,542 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:48:10,542 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:48:10,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:48:10,544 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:48:10,545 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:48:10,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:48:10,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:48:10,549 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:48:10,551 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:48:10,552 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:48:10,553 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:48:10,555 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:48:10,557 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 03:48:10,564 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:48:10,565 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:48:10,566 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:48:10,566 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:48:10,567 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 03:48:10,583 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:48:10,583 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:48:10,584 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:48:10,585 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:48:10,585 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:48:10,585 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:48:10,585 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:48:10,586 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:48:10,586 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:48:10,586 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:48:10,586 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:48:10,587 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:48:10,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:48:10,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:48:10,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:48:10,588 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:48:10,588 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:48:10,588 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:48:10,589 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:48:10,589 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:48:10,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:48:10,590 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:48:10,590 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:48:10,590 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:48:10,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:48:10,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:48:10,591 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:48:10,591 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:48:10,591 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:48:10,591 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:48:10,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:48:10,592 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:48:10,592 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:48:10,592 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:48:10,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:48:10,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:48:10,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:48:10,672 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:48:10,672 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:48:10,673 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label47_true-unreach-call.c [2018-11-07 03:48:10,734 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c942a316f/ff32dd2ae0394151a4f559157af94375/FLAG9b488e531 [2018-11-07 03:48:11,385 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:48:11,387 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label47_true-unreach-call.c [2018-11-07 03:48:11,408 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c942a316f/ff32dd2ae0394151a4f559157af94375/FLAG9b488e531 [2018-11-07 03:48:11,429 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c942a316f/ff32dd2ae0394151a4f559157af94375 [2018-11-07 03:48:11,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:48:11,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:48:11,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:48:11,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:48:11,452 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:48:11,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:11" (1/1) ... [2018-11-07 03:48:11,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d100604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:11, skipping insertion in model container [2018-11-07 03:48:11,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:11" (1/1) ... [2018-11-07 03:48:11,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:48:11,558 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:48:12,398 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:48:12,402 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:48:12,691 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:48:12,715 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:48:12,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12 WrapperNode [2018-11-07 03:48:12,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:48:12,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:48:12,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:48:12,718 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:48:12,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:12,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:12,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:48:12,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:48:12,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:48:12,934 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:48:12,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:12,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:12,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:12,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:13,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:13,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:13,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (1/1) ... [2018-11-07 03:48:13,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:48:13,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:48:13,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:48:13,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:48:13,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (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 03:48:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:48:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:48:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:48:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:48:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:48:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:48:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:48:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:48:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:48:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:48:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:48:19,297 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:48:19,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:19 BoogieIcfgContainer [2018-11-07 03:48:19,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:48:19,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:48:19,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:48:19,302 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:48:19,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:48:11" (1/3) ... [2018-11-07 03:48:19,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67529a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:19, skipping insertion in model container [2018-11-07 03:48:19,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:12" (2/3) ... [2018-11-07 03:48:19,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67529a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:19, skipping insertion in model container [2018-11-07 03:48:19,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:19" (3/3) ... [2018-11-07 03:48:19,306 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label47_true-unreach-call.c [2018-11-07 03:48:19,317 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:48:19,326 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:48:19,344 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:48:19,385 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:48:19,386 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:48:19,386 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:48:19,386 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:48:19,386 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:48:19,386 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:48:19,386 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:48:19,387 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:48:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 03:48:19,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-07 03:48:19,429 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:48:19,431 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] [2018-11-07 03:48:19,433 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:48:19,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:48:19,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1865210036, now seen corresponding path program 1 times [2018-11-07 03:48:19,442 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:48:19,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:48:19,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:48:19,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:48:19,497 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:48:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:48:19,969 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:48:20,115 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 03:48:20,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:48:20,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:48:20,118 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:48:20,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:48:20,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:48:20,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:48:20,149 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 03:48:23,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:48:23,755 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 03:48:23,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:48:23,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2018-11-07 03:48:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:48:23,781 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 03:48:23,781 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 03:48:23,790 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:48:23,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 03:48:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 03:48:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 03:48:23,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-11-07 03:48:23,900 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 72 [2018-11-07 03:48:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:48:23,901 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-11-07 03:48:23,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:48:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-11-07 03:48:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-11-07 03:48:23,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:48:23,911 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:48:23,912 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:48:23,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:48:23,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1724840118, now seen corresponding path program 1 times [2018-11-07 03:48:23,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:48:23,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:48:23,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:48:23,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:48:23,915 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:48:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:48:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:48:24,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:48:24,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:48:24,295 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:48:24,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:48:24,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:48:24,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:48:24,301 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-11-07 03:48:29,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:48:29,659 INFO L93 Difference]: Finished difference Result 2189 states and 4061 transitions. [2018-11-07 03:48:29,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:48:29,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2018-11-07 03:48:29,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:48:29,672 INFO L225 Difference]: With dead ends: 2189 [2018-11-07 03:48:29,672 INFO L226 Difference]: Without dead ends: 1451 [2018-11-07 03:48:29,676 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:48:29,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2018-11-07 03:48:29,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1441. [2018-11-07 03:48:29,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2018-11-07 03:48:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2402 transitions. [2018-11-07 03:48:29,752 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2402 transitions. Word has length 144 [2018-11-07 03:48:29,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:48:29,753 INFO L480 AbstractCegarLoop]: Abstraction has 1441 states and 2402 transitions. [2018-11-07 03:48:29,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:48:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2402 transitions. [2018-11-07 03:48:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-11-07 03:48:29,759 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:48:29,759 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, 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] [2018-11-07 03:48:29,759 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:48:29,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:48:29,760 INFO L82 PathProgramCache]: Analyzing trace with hash 952049591, now seen corresponding path program 1 times [2018-11-07 03:48:29,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:48:29,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:48:29,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:48:29,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:48:29,761 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:48:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:48:30,187 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:48:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 03:48:30,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:48:30,437 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:48:30,438 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-11-07 03:48:30,446 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:48:30,556 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:48:30,557 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:48:32,721 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:48:32,806 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:48:32,808 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 03:48:32,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:48:32,820 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:48:34,339 INFO L227 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 78.81% of their original sizes. [2018-11-07 03:48:34,340 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:48:34,734 INFO L415 sIntCurrentIteration]: We unified 172 AI predicates to 172 [2018-11-07 03:48:34,734 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:48:34,735 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:48:34,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-11-07 03:48:34,737 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:48:34,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 03:48:34,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 03:48:34,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 03:48:34,742 INFO L87 Difference]: Start difference. First operand 1441 states and 2402 transitions. Second operand 7 states. [2018-11-07 03:49:33,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:49:33,803 INFO L93 Difference]: Finished difference Result 3216 states and 5295 transitions. [2018-11-07 03:49:33,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:49:33,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2018-11-07 03:49:33,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:49:33,815 INFO L225 Difference]: With dead ends: 3216 [2018-11-07 03:49:33,815 INFO L226 Difference]: Without dead ends: 1781 [2018-11-07 03:49:33,821 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 167 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 03:49:33,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2018-11-07 03:49:33,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2018-11-07 03:49:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2018-11-07 03:49:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2747 transitions. [2018-11-07 03:49:33,880 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2747 transitions. Word has length 173 [2018-11-07 03:49:33,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:49:33,881 INFO L480 AbstractCegarLoop]: Abstraction has 1779 states and 2747 transitions. [2018-11-07 03:49:33,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 03:49:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2747 transitions. [2018-11-07 03:49:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-11-07 03:49:33,887 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:49:33,887 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:49:33,888 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:49:33,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:33,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1632227467, now seen corresponding path program 1 times [2018-11-07 03:49:33,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:49:33,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:33,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:49:33,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:49:33,890 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:49:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:49:34,345 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 197 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:49:34,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:49:34,346 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:49:34,346 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-11-07 03:49:34,346 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 03:49:34,352 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:49:34,352 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:49:35,407 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 03:49:41,469 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:49:41,469 INFO L272 AbstractInterpreter]: Visited 109 different actions 318 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 03:49:41,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:49:41,477 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:49:44,088 INFO L227 lantSequenceWeakener]: Weakened 46 states. On average, predicates are now at 78.36% of their original sizes. [2018-11-07 03:49:44,089 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:49:51,953 INFO L415 sIntCurrentIteration]: We unified 264 AI predicates to 264 [2018-11-07 03:49:51,953 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:49:51,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:49:51,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-11-07 03:49:51,954 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:49:51,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 03:49:51,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 03:49:51,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-11-07 03:49:51,957 INFO L87 Difference]: Start difference. First operand 1779 states and 2747 transitions. Second operand 17 states. Received shutdown request... [2018-11-07 03:52:01,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 03:52:01,827 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:52:01,833 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:52:01,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:52:01 BoogieIcfgContainer [2018-11-07 03:52:01,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:52:01,834 INFO L168 Benchmark]: Toolchain (without parser) took 230392.37 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 03:52:01,836 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-07 03:52:01,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1272.38 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 03:52:01,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 215.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -886.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2018-11-07 03:52:01,838 INFO L168 Benchmark]: Boogie Preprocessor took 173.20 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. [2018-11-07 03:52:01,839 INFO L168 Benchmark]: RCFGBuilder took 6190.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 265.6 MB). Peak memory consumption was 265.6 MB. Max. memory is 7.1 GB. [2018-11-07 03:52:01,840 INFO L168 Benchmark]: TraceAbstraction took 222534.91 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 2.0 GB). Free memory was 2.0 GB in the beginning and 2.9 GB in the end (delta: -970.2 MB). Peak memory consumption was 984.9 MB. Max. memory is 7.1 GB. [2018-11-07 03:52:01,845 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 1272.38 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 215.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 758.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -886.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 173.20 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 6190.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 265.6 MB). Peak memory consumption was 265.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222534.91 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 2.0 GB). Free memory was 2.0 GB in the beginning and 2.9 GB in the end (delta: -970.2 MB). Peak memory consumption was 984.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 202]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 202). Cancelled while BasicCegarLoop was constructing difference of abstraction (1779states) and FLOYD_HOARE automaton (currently 22 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (706 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 222.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 197.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 701 SDtfs, 4854 SDslu, 518 SDs, 0 SdLazy, 5460 SolverSat, 1427 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 462 GetRequests, 420 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1779occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9953712937109427 AbsIntWeakeningRatio, 0.10550458715596331 AbsIntAvgWeakeningVarsNumRemoved, 551.8188073394496 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 650 ConstructedInterpolants, 0 QuantifiedInterpolants, 494365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 266/352 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown