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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:51:38,618 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:51:38,623 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:51:38,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:51:38,642 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:51:38,643 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:51:38,645 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:51:38,648 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:51:38,651 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:51:38,657 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:51:38,658 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:51:38,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:51:38,662 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:51:38,663 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:51:38,666 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:51:38,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:51:38,668 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:51:38,669 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:51:38,675 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:51:38,678 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:51:38,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:51:38,682 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:51:38,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 23:51:38,686 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 23:51:38,686 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 23:51:38,687 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 23:51:38,688 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 23:51:38,689 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 23:51:38,690 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 23:51:38,693 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 23:51:38,693 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 23:51:38,695 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 23:51:38,696 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 23:51:38,696 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 23:51:38,697 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 23:51:38,697 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 23:51:38,698 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 23:51:38,726 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:51:38,726 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:51:38,727 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:51:38,727 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:51:38,728 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:51:38,729 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:51:38,729 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:51:38,729 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:51:38,729 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:51:38,729 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:51:38,729 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:51:38,730 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:51:38,730 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:51:38,730 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:51:38,731 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:51:38,731 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:51:38,731 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:51:38,732 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:51:38,732 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:51:38,732 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:51:38,732 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:51:38,732 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:51:38,733 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:51:38,735 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:51:38,735 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:51:38,735 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:51:38,735 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:51:38,735 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:51:38,735 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:51:38,736 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:51:38,736 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:51:38,736 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:51:38,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:51:38,736 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:51:38,737 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:51:38,737 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:51:38,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:51:38,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:51:38,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:51:38,810 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:51:38,811 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:51:38,812 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label25_false-unreach-call.c [2018-10-24 23:51:38,878 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4406d3ce5/ab459d00f7eb4fa396fec550b1397c28/FLAGa9d86edb7 [2018-10-24 23:51:39,624 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:51:39,625 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label25_false-unreach-call.c [2018-10-24 23:51:39,655 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4406d3ce5/ab459d00f7eb4fa396fec550b1397c28/FLAGa9d86edb7 [2018-10-24 23:51:39,676 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4406d3ce5/ab459d00f7eb4fa396fec550b1397c28 [2018-10-24 23:51:39,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:51:39,692 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:51:39,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:51:39,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:51:39,699 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:51:39,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:51:39" (1/1) ... [2018-10-24 23:51:39,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379aca2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:39, skipping insertion in model container [2018-10-24 23:51:39,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:51:39" (1/1) ... [2018-10-24 23:51:39,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:51:39,862 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:51:40,889 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:51:40,893 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:51:41,399 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:51:41,429 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:51:41,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41 WrapperNode [2018-10-24 23:51:41,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:51:41,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:51:41,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:51:41,431 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:51:41,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:41,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:41,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:51:41,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:51:41,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:51:41,928 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:51:41,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:41,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:41,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:41,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:42,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:42,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:42,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... [2018-10-24 23:51:42,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:51:42,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:51:42,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:51:42,157 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:51:42,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:51:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:51:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:51:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 23:51:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 23:51:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:51:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:51:42,232 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:51:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:51:42,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:51:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:51:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:51:42,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:51:50,717 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:51:50,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:51:50 BoogieIcfgContainer [2018-10-24 23:51:50,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:51:50,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:51:50,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:51:50,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:51:50,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:51:39" (1/3) ... [2018-10-24 23:51:50,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761af8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:51:50, skipping insertion in model container [2018-10-24 23:51:50,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:51:41" (2/3) ... [2018-10-24 23:51:50,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761af8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:51:50, skipping insertion in model container [2018-10-24 23:51:50,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:51:50" (3/3) ... [2018-10-24 23:51:50,728 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label25_false-unreach-call.c [2018-10-24 23:51:50,738 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:51:50,749 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:51:50,770 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:51:50,837 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:51:50,837 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:51:50,838 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:51:50,838 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:51:50,838 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:51:50,838 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:51:50,838 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:51:50,839 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:51:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 23:51:50,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-24 23:51:50,901 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:51:50,902 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] [2018-10-24 23:51:50,904 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:51:50,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:51:50,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1649769497, now seen corresponding path program 1 times [2018-10-24 23:51:50,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:51:50,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:50,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:51:50,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:51:50,970 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:51:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:51:51,411 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 23:51:51,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:51:51,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:51:51,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:51:51,426 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:51:51,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:51:51,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:51:51,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:51:51,470 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-10-24 23:52:02,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:52:02,612 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-10-24 23:52:02,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:52:02,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-10-24 23:52:02,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:52:02,659 INFO L225 Difference]: With dead ends: 2974 [2018-10-24 23:52:02,660 INFO L226 Difference]: Without dead ends: 2193 [2018-10-24 23:52:02,670 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 [2018-10-24 23:52:02,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-10-24 23:52:02,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 1474. [2018-10-24 23:52:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 23:52:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2384 transitions. [2018-10-24 23:52:02,846 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2384 transitions. Word has length 31 [2018-10-24 23:52:02,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:52:02,846 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2384 transitions. [2018-10-24 23:52:02,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:52:02,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2384 transitions. [2018-10-24 23:52:02,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 23:52:02,853 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:52:02,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:52:02,854 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:52:02,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:52:02,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1025384456, now seen corresponding path program 1 times [2018-10-24 23:52:02,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:52:02,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:52:02,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:52:02,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:52:02,856 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:52:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:52:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:52:03,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:52:03,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:52:03,199 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:52:03,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:52:03,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:52:03,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:52:03,202 INFO L87 Difference]: Start difference. First operand 1474 states and 2384 transitions. Second operand 5 states. [2018-10-24 23:52:13,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:52:13,612 INFO L93 Difference]: Finished difference Result 4422 states and 7235 transitions. [2018-10-24 23:52:13,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:52:13,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2018-10-24 23:52:13,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:52:13,645 INFO L225 Difference]: With dead ends: 4422 [2018-10-24 23:52:13,646 INFO L226 Difference]: Without dead ends: 2954 [2018-10-24 23:52:13,652 INFO L605 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 [2018-10-24 23:52:13,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2018-10-24 23:52:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2930. [2018-10-24 23:52:13,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2930 states. [2018-10-24 23:52:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 4516 transitions. [2018-10-24 23:52:13,778 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 4516 transitions. Word has length 101 [2018-10-24 23:52:13,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:52:13,779 INFO L481 AbstractCegarLoop]: Abstraction has 2930 states and 4516 transitions. [2018-10-24 23:52:13,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:52:13,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 4516 transitions. [2018-10-24 23:52:13,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 23:52:13,788 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:52:13,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:52:13,788 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:52:13,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:52:13,790 INFO L82 PathProgramCache]: Analyzing trace with hash 575354176, now seen corresponding path program 1 times [2018-10-24 23:52:13,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:52:13,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:52:13,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:52:13,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:52:13,792 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:52:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:52:14,122 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:52:14,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:52:14,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:52:14,123 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:52:14,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:52:14,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:52:14,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:52:14,124 INFO L87 Difference]: Start difference. First operand 2930 states and 4516 transitions. Second operand 6 states. [2018-10-24 23:52:22,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:52:22,337 INFO L93 Difference]: Finished difference Result 10279 states and 16084 transitions. [2018-10-24 23:52:22,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:52:22,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-10-24 23:52:22,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:52:22,399 INFO L225 Difference]: With dead ends: 10279 [2018-10-24 23:52:22,399 INFO L226 Difference]: Without dead ends: 7355 [2018-10-24 23:52:22,416 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:52:22,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7355 states. [2018-10-24 23:52:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7355 to 7296. [2018-10-24 23:52:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2018-10-24 23:52:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 10495 transitions. [2018-10-24 23:52:22,604 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 10495 transitions. Word has length 105 [2018-10-24 23:52:22,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:52:22,605 INFO L481 AbstractCegarLoop]: Abstraction has 7296 states and 10495 transitions. [2018-10-24 23:52:22,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:52:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 10495 transitions. [2018-10-24 23:52:22,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-24 23:52:22,608 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:52:22,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:52:22,609 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:52:22,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:52:22,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1276627405, now seen corresponding path program 1 times [2018-10-24 23:52:22,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:52:22,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:52:22,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:52:22,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:52:22,611 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:52:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:52:22,829 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:52:22,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:52:22,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:52:22,830 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:52:22,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:52:22,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:52:22,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:52:22,832 INFO L87 Difference]: Start difference. First operand 7296 states and 10495 transitions. Second operand 6 states. [2018-10-24 23:52:30,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:52:30,466 INFO L93 Difference]: Finished difference Result 18993 states and 28013 transitions. [2018-10-24 23:52:30,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:52:30,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-10-24 23:52:30,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:52:30,533 INFO L225 Difference]: With dead ends: 18993 [2018-10-24 23:52:30,533 INFO L226 Difference]: Without dead ends: 11703 [2018-10-24 23:52:30,567 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:52:30,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11703 states. [2018-10-24 23:52:30,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11703 to 11639. [2018-10-24 23:52:30,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11639 states. [2018-10-24 23:52:30,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11639 states to 11639 states and 16002 transitions. [2018-10-24 23:52:30,853 INFO L78 Accepts]: Start accepts. Automaton has 11639 states and 16002 transitions. Word has length 126 [2018-10-24 23:52:30,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:52:30,854 INFO L481 AbstractCegarLoop]: Abstraction has 11639 states and 16002 transitions. [2018-10-24 23:52:30,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:52:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 11639 states and 16002 transitions. [2018-10-24 23:52:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-10-24 23:52:30,867 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:52:30,868 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:52:30,868 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:52:30,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:52:30,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1484086754, now seen corresponding path program 1 times [2018-10-24 23:52:30,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:52:30,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:52:30,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:52:30,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:52:30,870 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:52:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:52:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:52:31,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:52:31,201 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:52:31,202 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-10-24 23:52:31,204 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1771], [1773], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2196], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 23:52:31,251 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:52:31,252 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:52:31,796 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:52:31,799 INFO L272 AbstractInterpreter]: Visited 112 different actions 112 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 23:52:31,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:52:31,840 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:52:32,384 INFO L232 lantSequenceWeakener]: Weakened 219 states. On average, predicates are now at 77.58% of their original sizes. [2018-10-24 23:52:32,384 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:52:32,634 INFO L413 sIntCurrentIteration]: We have 227 unified AI predicates [2018-10-24 23:52:32,634 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:52:32,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:52:32,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-24 23:52:32,636 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:52:32,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:52:32,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:52:32,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:52:32,637 INFO L87 Difference]: Start difference. First operand 11639 states and 16002 transitions. Second operand 6 states. [2018-10-24 23:53:07,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:53:07,639 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-24 23:53:07,644 INFO L168 Benchmark]: Toolchain (without parser) took 87953.29 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.3 GB). Peak memory consumption was 372.6 MB. Max. memory is 7.1 GB. [2018-10-24 23:53:07,645 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:53:07,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1736.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 23:53:07,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 496.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.6 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -984.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-24 23:53:07,648 INFO L168 Benchmark]: Boogie Preprocessor took 229.44 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-10-24 23:53:07,648 INFO L168 Benchmark]: RCFGBuilder took 8562.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 515.8 MB). Peak memory consumption was 515.8 MB. Max. memory is 7.1 GB. [2018-10-24 23:53:07,649 INFO L168 Benchmark]: TraceAbstraction took 76922.09 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.6 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:53:07,655 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1736.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 496.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.6 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -984.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 229.44 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8562.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 515.8 MB). Peak memory consumption was 515.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 76922.09 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.6 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...