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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/psyco/psyco_abp_1_true-unreach-call_false-termination_true-no-overflow.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:43:06,739 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:43:06,746 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:43:06,763 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:43:06,763 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:43:06,764 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:43:06,766 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:43:06,767 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:43:06,769 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:43:06,770 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:43:06,770 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:43:06,771 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:43:06,772 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:43:06,773 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:43:06,776 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:43:06,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:43:06,777 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:43:06,781 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:43:06,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:43:06,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:43:06,792 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:43:06,797 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:43:06,799 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:43:06,800 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:43:06,800 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:43:06,800 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:43:06,801 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:43:06,802 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:43:06,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:43:06,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:43:06,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:43:06,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:43:06,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:43:06,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:43:06,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:43:06,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:43:06,810 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:43:06,831 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:43:06,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:43:06,837 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:43:06,837 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:43:06,837 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:43:06,838 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:43:06,838 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:43:06,838 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:43:06,838 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:43:06,838 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:43:06,838 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:43:06,839 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:43:06,840 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:43:06,840 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:43:06,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:43:06,841 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:43:06,841 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:43:06,841 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:43:06,841 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:43:06,842 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:43:06,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:43:06,842 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:43:06,842 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:43:06,842 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:43:06,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:43:06,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:43:06,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:43:06,844 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:43:06,845 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:43:06,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:43:06,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:43:06,845 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:43:06,845 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:43:06,845 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:43:06,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:43:06,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:43:06,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:43:06,934 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:43:06,935 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:43:06,936 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_abp_1_true-unreach-call_false-termination_true-no-overflow.c [2018-09-15 15:43:07,300 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eb4237a/8a8708294d4f4c99a2af44de5ec35935/FLAG9d1b13f55 [2018-09-15 15:43:07,501 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:43:07,502 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_abp_1_true-unreach-call_false-termination_true-no-overflow.c [2018-09-15 15:43:07,526 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eb4237a/8a8708294d4f4c99a2af44de5ec35935/FLAG9d1b13f55 [2018-09-15 15:43:07,543 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eb4237a/8a8708294d4f4c99a2af44de5ec35935 [2018-09-15 15:43:07,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:43:07,558 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:43:07,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:43:07,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:43:07,566 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:43:07,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:43:07" (1/1) ... [2018-09-15 15:43:07,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@410c2699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:07, skipping insertion in model container [2018-09-15 15:43:07,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:43:07" (1/1) ... [2018-09-15 15:43:07,581 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:43:07,941 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:43:07,970 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:43:08,030 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:43:08,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08 WrapperNode [2018-09-15 15:43:08,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:43:08,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:43:08,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:43:08,093 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:43:08,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:43:08,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:43:08,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:43:08,128 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:43:08,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (1/1) ... [2018-09-15 15:43:08,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:43:08,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:43:08,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:43:08,198 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:43:08,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (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 [2018-09-15 15:43:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:43:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:43:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:43:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:43:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:43:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:43:10,530 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:43:10,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:43:10 BoogieIcfgContainer [2018-09-15 15:43:10,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:43:10,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:43:10,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:43:10,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:43:10,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:43:07" (1/3) ... [2018-09-15 15:43:10,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d26d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:43:10, skipping insertion in model container [2018-09-15 15:43:10,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:43:08" (2/3) ... [2018-09-15 15:43:10,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d26d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:43:10, skipping insertion in model container [2018-09-15 15:43:10,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:43:10" (3/3) ... [2018-09-15 15:43:10,540 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_abp_1_true-unreach-call_false-termination_true-no-overflow.c [2018-09-15 15:43:10,550 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:43:10,561 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:43:10,612 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:43:10,613 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:43:10,613 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:43:10,613 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:43:10,613 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:43:10,613 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:43:10,614 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:43:10,614 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:43:10,614 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:43:10,636 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2018-09-15 15:43:10,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 15:43:10,645 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:43:10,646 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:43:10,648 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:43:10,653 INFO L82 PathProgramCache]: Analyzing trace with hash -784715869, now seen corresponding path program 1 times [2018-09-15 15:43:10,656 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:43:10,657 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 15:43:10,660 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [27], [520], [523], [524], [525] [2018-09-15 15:43:10,694 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:43:10,694 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:43:10,792 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:43:10,794 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-15 15:43:10,834 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:43:10,888 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 98.07% of their original sizes. [2018-09-15 15:43:10,888 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:43:10,952 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:43:10,953 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:43:10,954 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 15:43:10,954 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:43:10,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 15:43:10,964 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 15:43:10,965 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-15 15:43:10,967 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 4 states. [2018-09-15 15:43:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:43:11,440 INFO L93 Difference]: Finished difference Result 225 states and 428 transitions. [2018-09-15 15:43:11,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 15:43:11,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-09-15 15:43:11,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:43:11,456 INFO L225 Difference]: With dead ends: 225 [2018-09-15 15:43:11,456 INFO L226 Difference]: Without dead ends: 107 [2018-09-15 15:43:11,460 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-15 15:43:11,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-09-15 15:43:11,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-09-15 15:43:11,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-09-15 15:43:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 172 transitions. [2018-09-15 15:43:11,509 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 172 transitions. Word has length 13 [2018-09-15 15:43:11,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:43:11,510 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 172 transitions. [2018-09-15 15:43:11,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 15:43:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 172 transitions. [2018-09-15 15:43:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-15 15:43:11,511 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:43:11,512 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:43:11,512 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:43:11,512 INFO L82 PathProgramCache]: Analyzing trace with hash 645002054, now seen corresponding path program 1 times [2018-09-15 15:43:11,513 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:43:11,513 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-15 15:43:11,513 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [520], [523], [524], [525] [2018-09-15 15:43:11,515 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:43:11,516 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:43:11,547 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:43:11,703 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 15:43:11,703 INFO L272 AbstractInterpreter]: Visited 18 different actions 21 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-15 15:43:11,746 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 15:43:11,764 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 15:43:11,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 03:43:11 BoogieIcfgContainer [2018-09-15 15:43:11,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 15:43:11,766 INFO L168 Benchmark]: Toolchain (without parser) took 4210.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -660.2 MB). Peak memory consumption was 73.8 MB. Max. memory is 7.1 GB. [2018-09-15 15:43:11,768 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-09-15 15:43:11,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-15 15:43:11,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.03 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. [2018-09-15 15:43:11,770 INFO L168 Benchmark]: Boogie Preprocessor took 69.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 15:43:11,771 INFO L168 Benchmark]: RCFGBuilder took 2334.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -759.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2018-09-15 15:43:11,772 INFO L168 Benchmark]: TraceAbstraction took 1232.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 7.1 GB. [2018-09-15 15:43:11,776 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 533.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.03 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. * Boogie Preprocessor took 69.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2334.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -759.9 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1232.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 565]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L5] int m_Protocol = 1; [L6] int m_msg_2 = 2; [L7] int m_recv_ack_2 = 3; [L8] int m_msg_1_1 = 4; [L9] int m_msg_1_2 = 5; [L10] int m_recv_ack_1_1 = 6; [L11] int m_recv_ack_1_2 = 7; [L16] int q = 0; [L17] int method_id; [L20] unsigned int this_expect = 0; [L21] unsigned int this_buffer_empty = 0; [L24] COND TRUE 1 [L27] int P1=__VERIFIER_nondet_int(); [L28] int P2=__VERIFIER_nondet_int(); [L29] int P3=__VERIFIER_nondet_int(); [L30] int P4=__VERIFIER_nondet_int(); [L31] int P5=__VERIFIER_nondet_int(); [L32] int P6=__VERIFIER_nondet_int(); [L33] int P7=__VERIFIER_nondet_int(); [L34] int P8=__VERIFIER_nondet_int(); [L35] int P9=__VERIFIER_nondet_int(); [L39] COND TRUE q == 0 [L40] COND TRUE __VERIFIER_nondet_int() [L42] COND TRUE 1 [L44] method_id = 1 [L46] COND FALSE !(0) [L50] q = 1 [L52] this_expect=0 [L52] this_buffer_empty=1 [L24] COND TRUE 1 [L27] int P1=__VERIFIER_nondet_int(); [L28] int P2=__VERIFIER_nondet_int(); [L29] int P3=__VERIFIER_nondet_int(); [L30] int P4=__VERIFIER_nondet_int(); [L31] int P5=__VERIFIER_nondet_int(); [L32] int P6=__VERIFIER_nondet_int(); [L33] int P7=__VERIFIER_nondet_int(); [L34] int P8=__VERIFIER_nondet_int(); [L35] int P9=__VERIFIER_nondet_int(); [L39] COND FALSE !(q == 0) [L59] COND TRUE q == 1 [L60] COND TRUE __VERIFIER_nondet_int() [L62] COND TRUE !((P1 % 2) != (0 % 2)) [L64] method_id = 2 [L66] COND TRUE (((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2)))) [L565] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 114 locations, 1 error locations. UNKNOWN Result, 1.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 201 SDtfs, 2 SDslu, 358 SDs, 0 SdLazy, 47 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9288677009265246 AbsIntWeakeningRatio, 1.75 AbsIntAvgWeakeningVarsNumRemoved, 16.75 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/psyco_abp_1_true-unreach-call_false-termination_true-no-overflow.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_15-43-11-791.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/psyco_abp_1_true-unreach-call_false-termination_true-no-overflow.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_15-43-11-791.csv Received shutdown request...