java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label03_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 18:53:41,788 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 18:53:41,790 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 18:53:41,806 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 18:53:41,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 18:53:41,808 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 18:53:41,810 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 18:53:41,812 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 18:53:41,815 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 18:53:41,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 18:53:41,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 18:53:41,820 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 18:53:41,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 18:53:41,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 18:53:41,824 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 18:53:41,825 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 18:53:41,826 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 18:53:41,835 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 18:53:41,837 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 18:53:41,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 18:53:41,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 18:53:41,845 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 18:53:41,847 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 18:53:41,847 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 18:53:41,850 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 18:53:41,850 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 18:53:41,851 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 18:53:41,852 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 18:53:41,854 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 18:53:41,856 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 18:53:41,857 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 18:53:41,857 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 18:53:41,859 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 18:53:41,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 18:53:41,860 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 18:53:41,860 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 18:53:41,861 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 18:53:41,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 18:53:41,888 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 18:53:41,889 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 18:53:41,889 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 18:53:41,889 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 18:53:41,889 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 18:53:41,890 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 18:53:41,890 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 18:53:41,890 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 18:53:41,890 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 18:53:41,891 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 18:53:41,891 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 18:53:41,891 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 18:53:41,892 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 18:53:41,892 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 18:53:41,892 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 18:53:41,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 18:53:41,892 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 18:53:41,892 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 18:53:41,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 18:53:41,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 18:53:41,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 18:53:41,894 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 18:53:41,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 18:53:41,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 18:53:41,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:53:41,895 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 18:53:41,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 18:53:41,896 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 18:53:41,896 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 18:53:41,896 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 18:53:41,896 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 18:53:41,896 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 18:53:41,897 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 18:53:41,897 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 18:53:41,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 18:53:41,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 18:53:41,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 18:53:41,971 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 18:53:41,971 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 18:53:41,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label03_true-unreach-call.c [2018-11-12 18:53:42,038 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e521727e/163b35a6b74449cd91a586228bc03ef7/FLAG3d16a6cd1 [2018-11-12 18:53:42,876 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 18:53:42,877 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label03_true-unreach-call.c [2018-11-12 18:53:42,910 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e521727e/163b35a6b74449cd91a586228bc03ef7/FLAG3d16a6cd1 [2018-11-12 18:53:42,926 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e521727e/163b35a6b74449cd91a586228bc03ef7 [2018-11-12 18:53:42,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 18:53:42,939 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 18:53:42,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 18:53:42,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 18:53:42,946 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 18:53:42,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:53:42" (1/1) ... [2018-11-12 18:53:42,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aefa37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:42, skipping insertion in model container [2018-11-12 18:53:42,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:53:42" (1/1) ... [2018-11-12 18:53:42,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 18:53:43,156 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 18:53:44,726 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:53:44,730 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 18:53:45,552 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:53:45,593 INFO L193 MainTranslator]: Completed translation [2018-11-12 18:53:45,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45 WrapperNode [2018-11-12 18:53:45,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 18:53:45,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 18:53:45,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 18:53:45,595 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 18:53:45,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:45,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:45,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 18:53:45,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 18:53:45,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 18:53:45,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 18:53:45,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:45,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:46,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:46,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:46,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:46,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:46,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... [2018-11-12 18:53:46,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 18:53:46,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 18:53:46,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 18:53:46,275 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 18:53:46,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:53:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 18:53:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 18:53:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 18:53:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 18:53:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 18:53:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 18:53:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 18:53:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 18:53:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 18:53:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 18:53:46,357 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 18:53:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 18:53:46,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 18:53:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 18:53:46,359 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 18:53:56,473 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 18:53:56,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:53:56 BoogieIcfgContainer [2018-11-12 18:53:56,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 18:53:56,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 18:53:56,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 18:53:56,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 18:53:56,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:53:42" (1/3) ... [2018-11-12 18:53:56,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d907b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:53:56, skipping insertion in model container [2018-11-12 18:53:56,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:53:45" (2/3) ... [2018-11-12 18:53:56,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d907b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:53:56, skipping insertion in model container [2018-11-12 18:53:56,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:53:56" (3/3) ... [2018-11-12 18:53:56,485 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label03_true-unreach-call.c [2018-11-12 18:53:56,498 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 18:53:56,512 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 18:53:56,533 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 18:53:56,605 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 18:53:56,606 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 18:53:56,606 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 18:53:56,606 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 18:53:56,606 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 18:53:56,606 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 18:53:56,608 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 18:53:56,608 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 18:53:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-12 18:53:56,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-12 18:53:56,674 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:53:56,675 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:53:56,677 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:53:56,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:53:56,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1009220837, now seen corresponding path program 1 times [2018-11-12 18:53:56,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:53:56,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:53:56,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:53:56,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:53:56,756 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:53:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:53:57,222 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-12 18:53:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:53:57,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:53:57,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 18:53:57,235 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:53:57,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 18:53:57,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 18:53:57,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:53:57,261 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-11-12 18:54:10,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:54:10,752 INFO L93 Difference]: Finished difference Result 4065 states and 7606 transitions. [2018-11-12 18:54:10,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 18:54:10,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2018-11-12 18:54:10,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:54:10,799 INFO L225 Difference]: With dead ends: 4065 [2018-11-12 18:54:10,799 INFO L226 Difference]: Without dead ends: 2939 [2018-11-12 18:54:10,812 INFO L604 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 [2018-11-12 18:54:10,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2018-11-12 18:54:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1972. [2018-11-12 18:54:11,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1972 states. [2018-11-12 18:54:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3594 transitions. [2018-11-12 18:54:11,019 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 3594 transitions. Word has length 41 [2018-11-12 18:54:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:54:11,019 INFO L480 AbstractCegarLoop]: Abstraction has 1972 states and 3594 transitions. [2018-11-12 18:54:11,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 18:54:11,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 3594 transitions. [2018-11-12 18:54:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-12 18:54:11,029 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:54:11,032 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:54:11,034 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:54:11,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:54:11,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1838928187, now seen corresponding path program 1 times [2018-11-12 18:54:11,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:54:11,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:11,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:54:11,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:11,037 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:54:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:54:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:54:11,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:54:11,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:54:11,484 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:54:11,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:54:11,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:54:11,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:54:11,486 INFO L87 Difference]: Start difference. First operand 1972 states and 3594 transitions. Second operand 6 states. [2018-11-12 18:54:26,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:54:26,856 INFO L93 Difference]: Finished difference Result 7229 states and 13602 transitions. [2018-11-12 18:54:26,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:54:26,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-11-12 18:54:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:54:26,891 INFO L225 Difference]: With dead ends: 7229 [2018-11-12 18:54:26,892 INFO L226 Difference]: Without dead ends: 5263 [2018-11-12 18:54:26,903 INFO L604 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 [2018-11-12 18:54:26,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5263 states. [2018-11-12 18:54:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5263 to 5234. [2018-11-12 18:54:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5234 states. [2018-11-12 18:54:27,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 8445 transitions. [2018-11-12 18:54:27,164 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 8445 transitions. Word has length 114 [2018-11-12 18:54:27,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:54:27,165 INFO L480 AbstractCegarLoop]: Abstraction has 5234 states and 8445 transitions. [2018-11-12 18:54:27,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:54:27,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 8445 transitions. [2018-11-12 18:54:27,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-12 18:54:27,179 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:54:27,180 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:54:27,180 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:54:27,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:54:27,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1607294046, now seen corresponding path program 1 times [2018-11-12 18:54:27,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:54:27,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:27,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:54:27,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:27,183 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:54:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:54:27,468 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:54:27,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:54:27,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 18:54:27,469 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:54:27,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 18:54:27,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 18:54:27,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 18:54:27,470 INFO L87 Difference]: Start difference. First operand 5234 states and 8445 transitions. Second operand 5 states. [2018-11-12 18:54:37,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:54:37,561 INFO L93 Difference]: Finished difference Result 15736 states and 26179 transitions. [2018-11-12 18:54:37,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 18:54:37,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-11-12 18:54:37,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:54:37,617 INFO L225 Difference]: With dead ends: 15736 [2018-11-12 18:54:37,618 INFO L226 Difference]: Without dead ends: 10508 [2018-11-12 18:54:37,639 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 18:54:37,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10508 states. [2018-11-12 18:54:37,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10508 to 10305. [2018-11-12 18:54:37,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10305 states. [2018-11-12 18:54:37,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10305 states to 10305 states and 15524 transitions. [2018-11-12 18:54:37,967 INFO L78 Accepts]: Start accepts. Automaton has 10305 states and 15524 transitions. Word has length 143 [2018-11-12 18:54:37,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:54:37,968 INFO L480 AbstractCegarLoop]: Abstraction has 10305 states and 15524 transitions. [2018-11-12 18:54:37,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 18:54:37,968 INFO L276 IsEmpty]: Start isEmpty. Operand 10305 states and 15524 transitions. [2018-11-12 18:54:37,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-12 18:54:37,972 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:54:37,973 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:54:37,973 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:54:37,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:54:37,974 INFO L82 PathProgramCache]: Analyzing trace with hash -19334682, now seen corresponding path program 1 times [2018-11-12 18:54:37,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:54:37,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:37,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:54:37,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:37,975 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:54:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:54:38,407 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:54:38,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:54:38,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 18:54:38,408 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:54:38,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 18:54:38,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 18:54:38,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 18:54:38,409 INFO L87 Difference]: Start difference. First operand 10305 states and 15524 transitions. Second operand 5 states. [2018-11-12 18:54:57,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:54:57,540 INFO L93 Difference]: Finished difference Result 32114 states and 50328 transitions. [2018-11-12 18:54:57,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 18:54:57,541 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-11-12 18:54:57,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:54:57,653 INFO L225 Difference]: With dead ends: 32114 [2018-11-12 18:54:57,653 INFO L226 Difference]: Without dead ends: 21815 [2018-11-12 18:54:57,704 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 18:54:57,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21815 states. [2018-11-12 18:54:58,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21815 to 21593. [2018-11-12 18:54:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21593 states. [2018-11-12 18:54:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21593 states to 21593 states and 31884 transitions. [2018-11-12 18:54:58,206 INFO L78 Accepts]: Start accepts. Automaton has 21593 states and 31884 transitions. Word has length 147 [2018-11-12 18:54:58,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:54:58,207 INFO L480 AbstractCegarLoop]: Abstraction has 21593 states and 31884 transitions. [2018-11-12 18:54:58,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 18:54:58,207 INFO L276 IsEmpty]: Start isEmpty. Operand 21593 states and 31884 transitions. [2018-11-12 18:54:58,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-12 18:54:58,212 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:54:58,212 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:54:58,212 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:54:58,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:54:58,213 INFO L82 PathProgramCache]: Analyzing trace with hash -389216454, now seen corresponding path program 1 times [2018-11-12 18:54:58,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:54:58,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:58,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:54:58,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:54:58,215 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:54:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:54:58,457 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:54:58,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:54:58,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 18:54:58,460 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:54:58,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 18:54:58,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 18:54:58,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:54:58,461 INFO L87 Difference]: Start difference. First operand 21593 states and 31884 transitions. Second operand 4 states. [2018-11-12 18:55:08,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:55:08,775 INFO L93 Difference]: Finished difference Result 83805 states and 134371 transitions. [2018-11-12 18:55:08,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 18:55:08,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2018-11-12 18:55:08,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:55:09,073 INFO L225 Difference]: With dead ends: 83805 [2018-11-12 18:55:09,073 INFO L226 Difference]: Without dead ends: 62218 [2018-11-12 18:55:09,182 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:55:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62218 states. [2018-11-12 18:55:10,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62218 to 62168. [2018-11-12 18:55:10,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62168 states. [2018-11-12 18:55:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62168 states to 62168 states and 90676 transitions. [2018-11-12 18:55:10,670 INFO L78 Accepts]: Start accepts. Automaton has 62168 states and 90676 transitions. Word has length 157 [2018-11-12 18:55:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:55:10,671 INFO L480 AbstractCegarLoop]: Abstraction has 62168 states and 90676 transitions. [2018-11-12 18:55:10,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 18:55:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 62168 states and 90676 transitions. [2018-11-12 18:55:10,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-11-12 18:55:10,721 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:55:10,722 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:55:10,722 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:55:10,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:55:10,722 INFO L82 PathProgramCache]: Analyzing trace with hash -314239728, now seen corresponding path program 1 times [2018-11-12 18:55:10,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:55:10,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:10,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:55:10,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:55:10,724 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:55:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:55:11,058 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:55:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 112 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 18:55:11,481 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:55:11,481 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:55:11,482 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 311 with the following transitions: [2018-11-12 18:55:11,484 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2855], [2857], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3336], [3341], [3343], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3451], [3455], [3459], [3463], [3467], [3471], [3475], [3479], [3483], [3487], [3498], [3502], [3506], [3517], [3521], [3524], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 18:55:11,548 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:55:11,549 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:55:13,094 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:55:13,096 INFO L272 AbstractInterpreter]: Visited 155 different actions 155 times. Never merged. Never widened. Performed 3694 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3694 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 18:55:13,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:55:13,148 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:55:14,310 INFO L227 lantSequenceWeakener]: Weakened 286 states. On average, predicates are now at 71.24% of their original sizes. [2018-11-12 18:55:14,311 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:55:14,710 INFO L415 sIntCurrentIteration]: We unified 309 AI predicates to 309 [2018-11-12 18:55:14,710 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:55:14,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:55:14,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 18:55:14,712 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:55:14,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 18:55:14,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 18:55:14,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 18:55:14,714 INFO L87 Difference]: Start difference. First operand 62168 states and 90676 transitions. Second operand 11 states. [2018-11-12 18:55:27,527 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:56:28,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:56:28,397 INFO L93 Difference]: Finished difference Result 125139 states and 182271 transitions. [2018-11-12 18:56:28,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-12 18:56:28,397 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 310 [2018-11-12 18:56:28,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:56:28,666 INFO L225 Difference]: With dead ends: 125139 [2018-11-12 18:56:28,667 INFO L226 Difference]: Without dead ends: 62977 [2018-11-12 18:56:28,805 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 314 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-12 18:56:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62977 states. [2018-11-12 18:56:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62977 to 62972. [2018-11-12 18:56:29,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62972 states. [2018-11-12 18:56:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62972 states to 62972 states and 91491 transitions. [2018-11-12 18:56:30,027 INFO L78 Accepts]: Start accepts. Automaton has 62972 states and 91491 transitions. Word has length 310 [2018-11-12 18:56:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:56:30,027 INFO L480 AbstractCegarLoop]: Abstraction has 62972 states and 91491 transitions. [2018-11-12 18:56:30,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 18:56:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 62972 states and 91491 transitions. [2018-11-12 18:56:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-11-12 18:56:30,069 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:56:30,069 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:56:30,070 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:56:30,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:30,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1929478170, now seen corresponding path program 1 times [2018-11-12 18:56:30,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:56:30,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:30,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:56:30,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:56:30,072 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:56:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:56:31,016 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:56:31,487 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 108 proven. 203 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-12 18:56:31,487 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:56:31,488 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:56:31,488 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 337 with the following transitions: [2018-11-12 18:56:31,488 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2855], [2857], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3221], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [3266], [3270], [3274], [3277], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 18:56:31,493 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:56:31,493 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:56:32,199 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:56:32,199 INFO L272 AbstractInterpreter]: Visited 113 different actions 326 times. Merged at 5 different actions 9 times. Never widened. Performed 5879 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5879 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 18:56:32,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:56:32,229 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:56:33,075 INFO L227 lantSequenceWeakener]: Weakened 133 states. On average, predicates are now at 71.82% of their original sizes. [2018-11-12 18:56:33,075 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:56:35,098 INFO L415 sIntCurrentIteration]: We unified 335 AI predicates to 335 [2018-11-12 18:56:35,098 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:56:35,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:56:35,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-12 18:56:35,099 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:56:35,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 18:56:35,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 18:56:35,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-12 18:56:35,101 INFO L87 Difference]: Start difference. First operand 62972 states and 91491 transitions. Second operand 19 states. [2018-11-12 18:56:47,161 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 18:57:05,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-12 18:57:05,382 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 18:57:05,387 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 18:57:05,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:57:05 BoogieIcfgContainer [2018-11-12 18:57:05,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 18:57:05,389 INFO L168 Benchmark]: Toolchain (without parser) took 202450.34 ms. Allocated memory was 1.5 GB in the beginning and 5.7 GB in the end (delta: 4.2 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -754.2 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-11-12 18:57:05,390 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. [2018-11-12 18:57:05,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2653.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 245.7 MB). Peak memory consumption was 245.7 MB. Max. memory is 7.1 GB. [2018-11-12 18:57:05,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 377.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.4 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2018-11-12 18:57:05,392 INFO L168 Benchmark]: Boogie Preprocessor took 302.60 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2018-11-12 18:57:05,393 INFO L168 Benchmark]: RCFGBuilder took 10200.82 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 183.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -3.9 MB). Peak memory consumption was 678.5 MB. Max. memory is 7.1 GB. [2018-11-12 18:57:05,394 INFO L168 Benchmark]: TraceAbstraction took 188911.10 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.2 GB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 42.1 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-11-12 18:57:05,400 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 2653.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 245.7 MB). Peak memory consumption was 245.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 377.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.4 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 302.60 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10200.82 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 183.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -3.9 MB). Peak memory consumption was 678.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 188911.10 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.2 GB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 42.1 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 114). Cancelled while BasicCegarLoop was constructing difference of abstraction (62972states) and FLOYD_HOARE automaton (currently 16 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (20680 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 188.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 173.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3534 SDtfs, 20291 SDslu, 3051 SDs, 0 SdLazy, 37424 SolverSat, 7886 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 101.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 696 GetRequests, 581 SyntacticMatches, 53 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62972occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.997840540839123 AbsIntWeakeningRatio, 0.09472049689440994 AbsIntAvgWeakeningVarsNumRemoved, 6.240683229813665 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 1476 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1248 NumberOfCodeBlocks, 1248 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1241 ConstructedInterpolants, 0 QuantifiedInterpolants, 740893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 389/704 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown