java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 01:31:33,777 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 01:31:33,779 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 01:31:33,797 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 01:31:33,797 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 01:31:33,799 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 01:31:33,800 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 01:31:33,803 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 01:31:33,805 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 01:31:33,806 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 01:31:33,813 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 01:31:33,814 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 01:31:33,815 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 01:31:33,816 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 01:31:33,817 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 01:31:33,818 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 01:31:33,819 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 01:31:33,821 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 01:31:33,823 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 01:31:33,824 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 01:31:33,825 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 01:31:33,827 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 01:31:33,829 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 01:31:33,838 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 01:31:33,838 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 01:31:33,839 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 01:31:33,840 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 01:31:33,841 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 01:31:33,872 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 01:31:33,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 01:31:33,874 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 01:31:33,875 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 01:31:33,875 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 01:31:33,875 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 01:31:33,876 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 01:31:33,876 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 01:31:33,876 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 01:31:33,876 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 01:31:33,876 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 01:31:33,877 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 01:31:33,881 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 01:31:33,882 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 01:31:33,882 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 01:31:33,882 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 01:31:33,882 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 01:31:33,882 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 01:31:33,883 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 01:31:33,883 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 01:31:33,883 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 01:31:33,883 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 01:31:33,883 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 01:31:33,883 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 01:31:33,886 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 01:31:33,886 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 01:31:33,887 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 01:31:33,887 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 01:31:33,887 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 01:31:33,887 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 01:31:33,887 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 01:31:33,888 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 01:31:33,889 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 01:31:33,889 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 01:31:33,950 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 01:31:33,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 01:31:33,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 01:31:33,974 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 01:31:33,974 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 01:31:33,975 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label34_true-unreach-call.c [2018-11-07 01:31:34,051 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b81e286d3/02da57f90337498fb0c055ceb5d067fc/FLAG1051b2639 [2018-11-07 01:31:34,825 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 01:31:34,826 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label34_true-unreach-call.c [2018-11-07 01:31:34,847 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b81e286d3/02da57f90337498fb0c055ceb5d067fc/FLAG1051b2639 [2018-11-07 01:31:34,868 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b81e286d3/02da57f90337498fb0c055ceb5d067fc [2018-11-07 01:31:34,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 01:31:34,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 01:31:34,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 01:31:34,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 01:31:34,896 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 01:31:34,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:34" (1/1) ... [2018-11-07 01:31:34,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9c8864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:34, skipping insertion in model container [2018-11-07 01:31:34,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:34" (1/1) ... [2018-11-07 01:31:34,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 01:31:35,034 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 01:31:35,947 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:31:35,954 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 01:31:36,398 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 01:31:36,429 INFO L193 MainTranslator]: Completed translation [2018-11-07 01:31:36,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36 WrapperNode [2018-11-07 01:31:36,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 01:31:36,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 01:31:36,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 01:31:36,433 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 01:31:36,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 01:31:36,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 01:31:36,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 01:31:36,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 01:31:36,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... [2018-11-07 01:31:36,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 01:31:36,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 01:31:36,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 01:31:36,932 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 01:31:36,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 01:31:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 01:31:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 01:31:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 01:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 01:31:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 01:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 01:31:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 01:31:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 01:31:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 01:31:42,340 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 01:31:42,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:31:42 BoogieIcfgContainer [2018-11-07 01:31:42,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 01:31:42,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 01:31:42,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 01:31:42,352 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 01:31:42,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:31:34" (1/3) ... [2018-11-07 01:31:42,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f020e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:31:42, skipping insertion in model container [2018-11-07 01:31:42,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:36" (2/3) ... [2018-11-07 01:31:42,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f020e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:31:42, skipping insertion in model container [2018-11-07 01:31:42,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:31:42" (3/3) ... [2018-11-07 01:31:42,357 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label34_true-unreach-call.c [2018-11-07 01:31:42,369 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 01:31:42,381 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 01:31:42,401 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 01:31:42,456 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 01:31:42,456 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 01:31:42,456 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 01:31:42,457 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 01:31:42,457 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 01:31:42,457 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 01:31:42,457 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 01:31:42,457 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 01:31:42,492 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-07 01:31:42,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-11-07 01:31:42,519 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:31:42,523 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:31:42,526 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:31:42,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:31:42,535 INFO L82 PathProgramCache]: Analyzing trace with hash 483318420, now seen corresponding path program 1 times [2018-11-07 01:31:42,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:31:42,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:31:42,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:31:42,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:31:42,596 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:31:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:31:43,549 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-11-07 01:31:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:31:43,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:31:43,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 01:31:43,938 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:31:43,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 01:31:43,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 01:31:43,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 01:31:43,969 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-11-07 01:31:47,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:31:47,670 INFO L93 Difference]: Finished difference Result 1074 states and 1924 transitions. [2018-11-07 01:31:47,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 01:31:47,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2018-11-07 01:31:47,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:31:47,704 INFO L225 Difference]: With dead ends: 1074 [2018-11-07 01:31:47,705 INFO L226 Difference]: Without dead ends: 756 [2018-11-07 01:31:47,714 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 01:31:47,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2018-11-07 01:31:47,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 520. [2018-11-07 01:31:47,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-11-07 01:31:47,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 919 transitions. [2018-11-07 01:31:47,827 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 919 transitions. Word has length 197 [2018-11-07 01:31:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:31:47,829 INFO L480 AbstractCegarLoop]: Abstraction has 520 states and 919 transitions. [2018-11-07 01:31:47,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 01:31:47,829 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 919 transitions. [2018-11-07 01:31:47,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-07 01:31:47,857 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:31:47,858 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:31:47,858 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:31:47,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:31:47,862 INFO L82 PathProgramCache]: Analyzing trace with hash 873411633, now seen corresponding path program 1 times [2018-11-07 01:31:47,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:31:47,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:31:47,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:31:47,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:31:47,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:31:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:31:48,313 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:31:48,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:31:48,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 01:31:48,314 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:31:48,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 01:31:48,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 01:31:48,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 01:31:48,318 INFO L87 Difference]: Start difference. First operand 520 states and 919 transitions. Second operand 6 states. [2018-11-07 01:31:52,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:31:52,049 INFO L93 Difference]: Finished difference Result 1482 states and 2700 transitions. [2018-11-07 01:31:52,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 01:31:52,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2018-11-07 01:31:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:31:52,068 INFO L225 Difference]: With dead ends: 1482 [2018-11-07 01:31:52,068 INFO L226 Difference]: Without dead ends: 968 [2018-11-07 01:31:52,075 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 [2018-11-07 01:31:52,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2018-11-07 01:31:52,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 949. [2018-11-07 01:31:52,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2018-11-07 01:31:52,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1579 transitions. [2018-11-07 01:31:52,169 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1579 transitions. Word has length 225 [2018-11-07 01:31:52,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:31:52,169 INFO L480 AbstractCegarLoop]: Abstraction has 949 states and 1579 transitions. [2018-11-07 01:31:52,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 01:31:52,170 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1579 transitions. [2018-11-07 01:31:52,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-11-07 01:31:52,176 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:31:52,177 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:31:52,177 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:31:52,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:31:52,178 INFO L82 PathProgramCache]: Analyzing trace with hash -2108795236, now seen corresponding path program 1 times [2018-11-07 01:31:52,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:31:52,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:31:52,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:31:52,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:31:52,180 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:31:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:31:52,767 WARN L179 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 9 [2018-11-07 01:31:52,899 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 01:31:52,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 01:31:52,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 01:31:52,900 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 01:31:52,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 01:31:52,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 01:31:52,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 01:31:52,902 INFO L87 Difference]: Start difference. First operand 949 states and 1579 transitions. Second operand 6 states. [2018-11-07 01:31:56,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 01:31:56,294 INFO L93 Difference]: Finished difference Result 2438 states and 4009 transitions. [2018-11-07 01:31:56,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 01:31:56,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 243 [2018-11-07 01:31:56,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 01:31:56,318 INFO L225 Difference]: With dead ends: 2438 [2018-11-07 01:31:56,319 INFO L226 Difference]: Without dead ends: 1495 [2018-11-07 01:31:56,325 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 01:31:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2018-11-07 01:31:56,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1450. [2018-11-07 01:31:56,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-11-07 01:31:56,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2315 transitions. [2018-11-07 01:31:56,412 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2315 transitions. Word has length 243 [2018-11-07 01:31:56,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 01:31:56,413 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 2315 transitions. [2018-11-07 01:31:56,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 01:31:56,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2315 transitions. [2018-11-07 01:31:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-11-07 01:31:56,421 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 01:31:56,422 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 01:31:56,422 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 01:31:56,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 01:31:56,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1365448965, now seen corresponding path program 1 times [2018-11-07 01:31:56,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 01:31:56,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:31:56,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:31:56,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 01:31:56,425 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 01:31:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:31:56,703 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 01:31:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 45 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 01:31:56,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:31:56,844 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 01:31:56,845 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-11-07 01:31:56,848 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1037], [1039], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 01:31:56,999 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 01:31:57,000 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-11-07 01:36:06,833 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 01:36:06,834 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 01:36:06,835 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 01:36:06,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 01:36:06,836 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 01:36:06,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 01:36:06,849 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 01:36:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 01:36:07,102 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 01:36:07,138 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 01:36:07,340 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 01:36:07,341 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 01:36:07,346 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 01:36:07,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:36:07 BoogieIcfgContainer [2018-11-07 01:36:07,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 01:36:07,348 INFO L168 Benchmark]: Toolchain (without parser) took 272460.12 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 393.9 MB. Max. memory is 7.1 GB. [2018-11-07 01:36:07,349 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:36:07,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1540.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 01:36:07,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 313.82 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 726.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. [2018-11-07 01:36:07,352 INFO L168 Benchmark]: Boogie Preprocessor took 184.42 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 01:36:07,352 INFO L168 Benchmark]: RCFGBuilder took 5409.96 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 273.0 MB). Peak memory consumption was 273.0 MB. Max. memory is 7.1 GB. [2018-11-07 01:36:07,353 INFO L168 Benchmark]: TraceAbstraction took 265000.25 ms. Allocated memory was 2.2 GB in the beginning and 3.0 GB in the end (delta: 749.2 MB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -589.0 MB). Peak memory consumption was 160.2 MB. Max. memory is 7.1 GB. [2018-11-07 01:36:07,361 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1540.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 313.82 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 726.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 184.42 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5409.96 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 273.0 MB). Peak memory consumption was 273.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 265000.25 ms. Allocated memory was 2.2 GB in the beginning and 3.0 GB in the end (delta: 749.2 MB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -589.0 MB). Peak memory consumption was 160.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1605]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1605). Cancelled while BasicCegarLoop was analyzing trace of length 251 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 264.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 10.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 434 SDtfs, 2615 SDslu, 549 SDs, 0 SdLazy, 3409 SolverSat, 1007 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 249.9s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 300 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 707198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 68/68 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown