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/Problem17_label34_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:40:42,713 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:40:42,717 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:40:42,734 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:40:42,734 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:40:42,735 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:40:42,737 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:40:42,740 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:40:42,742 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:40:42,743 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:40:42,751 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:40:42,751 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:40:42,752 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:40:42,758 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:40:42,759 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:40:42,760 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:40:42,761 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:40:42,762 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:40:42,764 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:40:42,766 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:40:42,767 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:40:42,769 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:40:42,774 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 00:40:42,774 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 00:40:42,774 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 00:40:42,777 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 00:40:42,778 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 00:40:42,779 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 00:40:42,782 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 00:40:42,784 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 00:40:42,785 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 00:40:42,785 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 00:40:42,787 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 00:40:42,787 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 00:40:42,788 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 00:40:42,789 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 00:40:42,789 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 00:40:42,814 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:40:42,814 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:40:42,816 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:40:42,816 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:40:42,816 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:40:42,816 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:40:42,816 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:40:42,817 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:40:42,817 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:40:42,817 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:40:42,817 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:40:42,818 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:40:42,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:40:42,819 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:40:42,819 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:40:42,819 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:40:42,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:40:42,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:40:42,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:40:42,820 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:40:42,820 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:40:42,821 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:40:42,822 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:40:42,823 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:40:42,823 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:40:42,823 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:40:42,823 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:40:42,823 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:40:42,824 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:40:42,824 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:40:42,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:40:42,824 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:40:42,824 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:40:42,825 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:40:42,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:40:42,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:40:42,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:40:42,910 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:40:42,911 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:40:42,913 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label34_false-unreach-call.c [2018-11-07 00:40:42,980 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff3ee5af/3fe6e0c1781f4e478bc0eef8aaf523f8/FLAG1112bc690 [2018-11-07 00:40:43,714 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:40:43,715 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label34_false-unreach-call.c [2018-11-07 00:40:43,744 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff3ee5af/3fe6e0c1781f4e478bc0eef8aaf523f8/FLAG1112bc690 [2018-11-07 00:40:43,764 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff3ee5af/3fe6e0c1781f4e478bc0eef8aaf523f8 [2018-11-07 00:40:43,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:40:43,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:40:43,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:40:43,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:40:43,786 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:40:43,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:40:43" (1/1) ... [2018-11-07 00:40:43,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301511e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43, skipping insertion in model container [2018-11-07 00:40:43,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:40:43" (1/1) ... [2018-11-07 00:40:43,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:40:43,937 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:40:44,946 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:40:44,956 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:40:45,383 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:40:45,410 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:40:45,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45 WrapperNode [2018-11-07 00:40:45,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:40:45,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:40:45,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:40:45,412 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:40:45,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:40:45,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:40:45,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:40:45,701 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:40:45,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (1/1) ... [2018-11-07 00:40:45,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:40:45,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:40:45,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:40:45,927 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:40:45,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (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 [2018-11-07 00:40:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:40:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:40:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:40:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:40:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:40:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:40:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:40:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:40:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:40:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:40:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:40:54,301 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:40:54,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:40:54 BoogieIcfgContainer [2018-11-07 00:40:54,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:40:54,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:40:54,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:40:54,307 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:40:54,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:40:43" (1/3) ... [2018-11-07 00:40:54,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22dffb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:40:54, skipping insertion in model container [2018-11-07 00:40:54,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:45" (2/3) ... [2018-11-07 00:40:54,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22dffb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:40:54, skipping insertion in model container [2018-11-07 00:40:54,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:40:54" (3/3) ... [2018-11-07 00:40:54,313 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label34_false-unreach-call.c [2018-11-07 00:40:54,325 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:40:54,335 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:40:54,354 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:40:54,407 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:40:54,408 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:40:54,408 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:40:54,408 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:40:54,408 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:40:54,409 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:40:54,409 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:40:54,409 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:40:54,467 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 00:40:54,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-07 00:40:54,477 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:40:54,479 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] [2018-11-07 00:40:54,481 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:40:54,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:40:54,491 INFO L82 PathProgramCache]: Analyzing trace with hash 808128948, now seen corresponding path program 1 times [2018-11-07 00:40:54,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:40:54,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:40:54,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:40:54,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:40:54,557 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:40:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:40:54,996 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 00:40:54,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:40:54,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:40:54,999 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:40:55,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:40:55,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:40:55,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:40:55,024 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 00:41:06,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:41:06,212 INFO L93 Difference]: Finished difference Result 2118 states and 3937 transitions. [2018-11-07 00:41:06,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:41:06,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-07 00:41:06,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:41:06,244 INFO L225 Difference]: With dead ends: 2118 [2018-11-07 00:41:06,244 INFO L226 Difference]: Without dead ends: 1508 [2018-11-07 00:41:06,254 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:41:06,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2018-11-07 00:41:06,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1039. [2018-11-07 00:41:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-11-07 00:41:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1596 transitions. [2018-11-07 00:41:06,402 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1596 transitions. Word has length 26 [2018-11-07 00:41:06,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:41:06,402 INFO L480 AbstractCegarLoop]: Abstraction has 1039 states and 1596 transitions. [2018-11-07 00:41:06,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:41:06,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1596 transitions. [2018-11-07 00:41:06,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-07 00:41:06,412 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:41:06,414 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:41:06,415 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:41:06,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:41:06,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1801409866, now seen corresponding path program 1 times [2018-11-07 00:41:06,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:41:06,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:41:06,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:41:06,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:41:06,418 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:41:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:41:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:41:06,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:41:06,956 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:41:06,957 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-11-07 00:41:06,959 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [818], [820], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 00:41:07,050 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:41:07,051 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:41:08,455 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:41:31,179 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:41:31,181 INFO L272 AbstractInterpreter]: Visited 82 different actions 538 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 00:41:31,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:41:31,228 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:41:33,487 INFO L227 lantSequenceWeakener]: Weakened 31 states. On average, predicates are now at 77.96% of their original sizes. [2018-11-07 00:41:33,487 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:42:10,134 INFO L415 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2018-11-07 00:42:10,134 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:42:10,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:42:10,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [7] total 29 [2018-11-07 00:42:10,135 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:42:10,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-07 00:42:10,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-07 00:42:10,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2018-11-07 00:42:10,139 INFO L87 Difference]: Start difference. First operand 1039 states and 1596 transitions. Second operand 24 states. Received shutdown request... [2018-11-07 00:44:49,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-07 00:44:49,315 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:44:49,322 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:44:49,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:44:49 BoogieIcfgContainer [2018-11-07 00:44:49,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:44:49,323 INFO L168 Benchmark]: Toolchain (without parser) took 245545.48 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 155.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:44:49,326 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:44:49,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1631.45 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:44:49,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 288.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -944.6 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:44:49,333 INFO L168 Benchmark]: Boogie Preprocessor took 226.11 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:44:49,335 INFO L168 Benchmark]: RCFGBuilder took 8375.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 458.1 MB). Peak memory consumption was 458.1 MB. Max. memory is 7.1 GB. [2018-11-07 00:44:49,336 INFO L168 Benchmark]: TraceAbstraction took 235019.13 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 3.9 GB in the end (delta: -2.2 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:44:49,346 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1631.45 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 288.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -944.6 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 226.11 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8375.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 458.1 MB). Peak memory consumption was 458.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235019.13 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 3.9 GB in the end (delta: -2.2 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 65). Cancelled while BasicCegarLoop was constructing difference of abstraction (1039states) and FLOYD_HOARE automaton (currently 21 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (573 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 234.9s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 170.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 606 SDtfs, 2572 SDslu, 401 SDs, 0 SdLazy, 3787 SolverSat, 940 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 61.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 118 GetRequests, 56 SyntacticMatches, 26 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 45.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1039occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 24.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9910923076923077 AbsIntWeakeningRatio, 0.21 AbsIntAvgWeakeningVarsNumRemoved, 739.88 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 469 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 38375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/19 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown