java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 11:57:36,563 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 11:57:36,565 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 11:57:36,582 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 11:57:36,582 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 11:57:36,583 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 11:57:36,584 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 11:57:36,586 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 11:57:36,588 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 11:57:36,590 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 11:57:36,590 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 11:57:36,591 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 11:57:36,592 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 11:57:36,593 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 11:57:36,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 11:57:36,599 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 11:57:36,599 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 11:57:36,601 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 11:57:36,605 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 11:57:36,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 11:57:36,610 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 11:57:36,611 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 11:57:36,613 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 11:57:36,616 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 11:57:36,616 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 11:57:36,617 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 11:57:36,618 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 11:57:36,618 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 11:57:36,622 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 11:57:36,623 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 11:57:36,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 11:57:36,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 11:57:36,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 11:57:36,625 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 11:57:36,627 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 11:57:36,627 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 11:57:36,628 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 11:57:36,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 11:57:36,652 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 11:57:36,652 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 11:57:36,653 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 11:57:36,654 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 11:57:36,654 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 11:57:36,654 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 11:57:36,654 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 11:57:36,654 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 11:57:36,654 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 11:57:36,655 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 11:57:36,655 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 11:57:36,655 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 11:57:36,657 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 11:57:36,657 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 11:57:36,657 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 11:57:36,657 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 11:57:36,657 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 11:57:36,658 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 11:57:36,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 11:57:36,658 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 11:57:36,658 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 11:57:36,658 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 11:57:36,659 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 11:57:36,660 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 11:57:36,660 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 11:57:36,660 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 11:57:36,660 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 11:57:36,660 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 11:57:36,661 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 11:57:36,661 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 11:57:36,661 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 11:57:36,661 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 11:57:36,661 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 11:57:36,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 11:57:36,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 11:57:36,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 11:57:36,754 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 11:57:36,754 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 11:57:36,755 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c [2018-10-27 11:57:36,826 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b177246e/052a1f2f652040369fcaba20303993f9/FLAG6109a583b [2018-10-27 11:57:37,533 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 11:57:37,534 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label49_false-unreach-call.c [2018-10-27 11:57:37,559 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b177246e/052a1f2f652040369fcaba20303993f9/FLAG6109a583b [2018-10-27 11:57:37,575 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b177246e/052a1f2f652040369fcaba20303993f9 [2018-10-27 11:57:37,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 11:57:37,588 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 11:57:37,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 11:57:37,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 11:57:37,593 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 11:57:37,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:57:37" (1/1) ... [2018-10-27 11:57:37,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441f49ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:37, skipping insertion in model container [2018-10-27 11:57:37,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:57:37" (1/1) ... [2018-10-27 11:57:37,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 11:57:37,726 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 11:57:38,662 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:57:38,666 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 11:57:39,105 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:57:39,129 INFO L193 MainTranslator]: Completed translation [2018-10-27 11:57:39,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39 WrapperNode [2018-10-27 11:57:39,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 11:57:39,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 11:57:39,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 11:57:39,131 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 11:57:39,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 11:57:39,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 11:57:39,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 11:57:39,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 11:57:39,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... [2018-10-27 11:57:39,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 11:57:39,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 11:57:39,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 11:57:39,908 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 11:57:39,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 11:57:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 11:57:39,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 11:57:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 11:57:39,974 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 11:57:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 11:57:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 11:57:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 11:57:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 11:57:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 11:57:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 11:57:50,993 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 11:57:50,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:57:50 BoogieIcfgContainer [2018-10-27 11:57:50,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 11:57:50,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 11:57:50,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 11:57:50,999 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 11:57:51,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:57:37" (1/3) ... [2018-10-27 11:57:51,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e445b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:57:51, skipping insertion in model container [2018-10-27 11:57:51,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:57:39" (2/3) ... [2018-10-27 11:57:51,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e445b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:57:51, skipping insertion in model container [2018-10-27 11:57:51,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:57:50" (3/3) ... [2018-10-27 11:57:51,003 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label49_false-unreach-call.c [2018-10-27 11:57:51,014 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 11:57:51,024 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 11:57:51,042 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 11:57:51,087 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 11:57:51,087 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 11:57:51,087 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 11:57:51,087 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 11:57:51,088 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 11:57:51,088 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 11:57:51,088 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 11:57:51,088 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 11:57:51,123 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-27 11:57:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 11:57:51,130 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:57:51,131 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] [2018-10-27 11:57:51,134 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:57:51,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:57:51,139 INFO L82 PathProgramCache]: Analyzing trace with hash -549765852, now seen corresponding path program 1 times [2018-10-27 11:57:51,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:57:51,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:57:51,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:57:51,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:57:51,187 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:57:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:57:51,600 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-27 11:57:51,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:57:51,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:57:51,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 11:57:51,610 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:57:51,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 11:57:51,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 11:57:51,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:57:51,637 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-27 11:58:01,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:58:01,554 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-10-27 11:58:01,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 11:58:01,557 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-10-27 11:58:01,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:58:01,600 INFO L225 Difference]: With dead ends: 2166 [2018-10-27 11:58:01,600 INFO L226 Difference]: Without dead ends: 1556 [2018-10-27 11:58:01,611 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:58:01,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-10-27 11:58:01,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-10-27 11:58:01,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-27 11:58:01,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-10-27 11:58:01,754 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 22 [2018-10-27 11:58:01,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:58:01,756 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-10-27 11:58:01,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 11:58:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-10-27 11:58:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-10-27 11:58:01,767 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:58:01,768 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 11:58:01,768 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:58:01,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:58:01,769 INFO L82 PathProgramCache]: Analyzing trace with hash -157307670, now seen corresponding path program 1 times [2018-10-27 11:58:01,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:58:01,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:58:01,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:58:01,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:58:01,772 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:58:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:58:02,244 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:58:02,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:58:02,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 11:58:02,245 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:58:02,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 11:58:02,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 11:58:02,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 11:58:02,249 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-10-27 11:58:13,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:58:13,394 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-10-27 11:58:13,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 11:58:13,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-10-27 11:58:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:58:13,420 INFO L225 Difference]: With dead ends: 3059 [2018-10-27 11:58:13,420 INFO L226 Difference]: Without dead ends: 1997 [2018-10-27 11:58:13,425 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 11:58:13,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-10-27 11:58:13,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-10-27 11:58:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-10-27 11:58:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-10-27 11:58:13,501 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 98 [2018-10-27 11:58:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:58:13,502 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-10-27 11:58:13,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 11:58:13,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-10-27 11:58:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-27 11:58:13,507 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:58:13,507 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 11:58:13,507 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:58:13,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:58:13,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1941736734, now seen corresponding path program 1 times [2018-10-27 11:58:13,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:58:13,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:58:13,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:58:13,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:58:13,509 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:58:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:58:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:58:13,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:58:13,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 11:58:13,724 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:58:13,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 11:58:13,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 11:58:13,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 11:58:13,725 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-10-27 11:58:18,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:58:18,573 INFO L93 Difference]: Finished difference Result 4880 states and 7834 transitions. [2018-10-27 11:58:18,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 11:58:18,574 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-10-27 11:58:18,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:58:18,595 INFO L225 Difference]: With dead ends: 4880 [2018-10-27 11:58:18,595 INFO L226 Difference]: Without dead ends: 2911 [2018-10-27 11:58:18,604 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 11:58:18,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-10-27 11:58:18,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2880. [2018-10-27 11:58:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-10-27 11:58:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3936 transitions. [2018-10-27 11:58:18,687 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3936 transitions. Word has length 102 [2018-10-27 11:58:18,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:58:18,688 INFO L481 AbstractCegarLoop]: Abstraction has 2880 states and 3936 transitions. [2018-10-27 11:58:18,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 11:58:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3936 transitions. [2018-10-27 11:58:18,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-27 11:58:18,691 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:58:18,691 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 11:58:18,691 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:58:18,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:58:18,692 INFO L82 PathProgramCache]: Analyzing trace with hash 927500415, now seen corresponding path program 1 times [2018-10-27 11:58:18,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:58:18,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:58:18,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:58:18,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:58:18,693 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:58:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:58:18,877 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:58:18,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:58:18,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 11:58:18,878 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:58:18,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 11:58:18,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 11:58:18,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:58:18,879 INFO L87 Difference]: Start difference. First operand 2880 states and 3936 transitions. Second operand 4 states. [2018-10-27 11:58:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:58:24,158 INFO L93 Difference]: Finished difference Result 5754 states and 7882 transitions. [2018-10-27 11:58:24,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 11:58:24,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2018-10-27 11:58:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:58:24,176 INFO L225 Difference]: With dead ends: 5754 [2018-10-27 11:58:24,176 INFO L226 Difference]: Without dead ends: 2880 [2018-10-27 11:58:24,187 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:58:24,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2018-10-27 11:58:24,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2880. [2018-10-27 11:58:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-10-27 11:58:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3720 transitions. [2018-10-27 11:58:24,259 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3720 transitions. Word has length 132 [2018-10-27 11:58:24,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:58:24,260 INFO L481 AbstractCegarLoop]: Abstraction has 2880 states and 3720 transitions. [2018-10-27 11:58:24,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 11:58:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3720 transitions. [2018-10-27 11:58:24,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-10-27 11:58:24,267 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:58:24,267 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 11:58:24,267 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:58:24,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:58:24,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1417902568, now seen corresponding path program 1 times [2018-10-27 11:58:24,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:58:24,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:58:24,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:58:24,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:58:24,272 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:58:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:58:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-27 11:58:24,659 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 11:58:24,660 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 11:58:24,661 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-10-27 11:58:24,663 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [786], [788], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-27 11:58:24,711 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 11:58:24,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 11:58:25,244 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown