java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:32:19,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:32:19,782 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:32:19,798 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:32:19,798 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:32:19,799 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:32:19,800 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:32:19,802 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:32:19,804 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:32:19,805 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:32:19,806 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:32:19,806 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:32:19,807 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:32:19,808 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:32:19,809 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:32:19,813 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:32:19,814 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:32:19,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:32:19,821 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:32:19,822 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:32:19,823 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:32:19,824 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:32:19,826 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 22:32:19,834 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 22:32:19,849 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:32:19,850 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:32:19,850 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:32:19,851 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:32:19,851 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:32:19,851 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:32:19,851 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:32:19,851 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:32:19,852 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:32:19,852 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:32:19,852 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:32:19,853 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:32:19,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:32:19,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:32:19,853 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:32:19,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:32:19,854 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:32:19,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:32:19,854 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:32:19,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:32:19,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:32:19,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:32:19,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:32:19,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:32:19,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:32:19,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:32:19,857 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:32:19,857 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:32:19,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:32:19,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:32:19,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:32:19,858 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:32:19,858 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:32:19,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:32:19,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:32:19,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:32:19,942 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:32:19,943 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:32:19,943 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c [2018-07-23 22:32:20,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0730243a7/832bb77ee0e04137bb2f1f0e8bded08b/FLAGccde73f31 [2018-07-23 22:32:20,598 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:32:20,599 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label42_true-unreach-call_false-termination.c [2018-07-23 22:32:20,622 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0730243a7/832bb77ee0e04137bb2f1f0e8bded08b/FLAGccde73f31 [2018-07-23 22:32:20,641 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0730243a7/832bb77ee0e04137bb2f1f0e8bded08b [2018-07-23 22:32:20,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:32:20,655 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:32:20,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:32:20,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:32:20,664 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:32:20,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:32:20" (1/1) ... [2018-07-23 22:32:20,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181a688b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:20, skipping insertion in model container [2018-07-23 22:32:20,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:32:20" (1/1) ... [2018-07-23 22:32:20,875 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:32:21,188 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:32:21,208 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:32:21,448 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:32:21,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21 WrapperNode [2018-07-23 22:32:21,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:32:21,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:32:21,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:32:21,512 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:32:21,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:32:21,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:32:21,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:32:21,645 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:32:21,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (1/1) ... [2018-07-23 22:32:21,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:32:21,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:32:21,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:32:21,986 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:32:21,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (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 [2018-07-23 22:32:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 22:32:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-23 22:32:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:32:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:32:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:32:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:32:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:32:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:32:25,877 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:32:25,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:32:25 BoogieIcfgContainer [2018-07-23 22:32:25,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:32:25,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:32:25,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:32:25,892 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:32:25,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:32:20" (1/3) ... [2018-07-23 22:32:25,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de4d63c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:32:25, skipping insertion in model container [2018-07-23 22:32:25,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:32:21" (2/3) ... [2018-07-23 22:32:25,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de4d63c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:32:25, skipping insertion in model container [2018-07-23 22:32:25,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:32:25" (3/3) ... [2018-07-23 22:32:25,897 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label42_true-unreach-call_false-termination.c [2018-07-23 22:32:25,905 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:32:25,914 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:32:25,969 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:32:25,969 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:32:25,970 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:32:25,970 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:32:25,970 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:32:25,970 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:32:25,970 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:32:25,970 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:32:25,971 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:32:26,001 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-07-23 22:32:26,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-23 22:32:26,017 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:32:26,018 INFO L353 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] [2018-07-23 22:32:26,018 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:32:26,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1021980375, now seen corresponding path program 1 times [2018-07-23 22:32:26,025 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:32:26,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:26,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:32:26,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:26,076 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:32:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:32:26,498 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:32:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:32:26,524 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:32:26,524 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:32:26,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:32:26,531 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:32:26,547 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:32:26,547 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:32:26,550 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-07-23 22:32:28,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:32:28,334 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-07-23 22:32:28,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:32:28,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2018-07-23 22:32:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:32:28,360 INFO L225 Difference]: With dead ends: 691 [2018-07-23 22:32:28,360 INFO L226 Difference]: Without dead ends: 434 [2018-07-23 22:32:28,368 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:32:28,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-07-23 22:32:28,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-07-23 22:32:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-07-23 22:32:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-07-23 22:32:28,481 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 49 [2018-07-23 22:32:28,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:32:28,482 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-07-23 22:32:28,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:32:28,482 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-07-23 22:32:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-23 22:32:28,497 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:32:28,497 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:32:28,498 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:32:28,498 INFO L82 PathProgramCache]: Analyzing trace with hash -772896945, now seen corresponding path program 1 times [2018-07-23 22:32:28,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:32:28,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:28,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:32:28,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:28,503 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:32:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:32:28,920 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:32:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:32:29,003 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:32:29,003 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 22:32:29,003 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:32:29,005 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 22:32:29,006 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 22:32:29,006 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 22:32:29,007 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-07-23 22:32:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:32:31,607 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-07-23 22:32:31,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:32:31,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-07-23 22:32:31,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:32:31,614 INFO L225 Difference]: With dead ends: 1062 [2018-07-23 22:32:31,614 INFO L226 Difference]: Without dead ends: 634 [2018-07-23 22:32:31,617 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 22:32:31,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-07-23 22:32:31,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-07-23 22:32:31,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-07-23 22:32:31,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-07-23 22:32:31,659 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 136 [2018-07-23 22:32:31,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:32:31,660 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-07-23 22:32:31,660 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 22:32:31,660 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-07-23 22:32:31,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-23 22:32:31,664 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:32:31,665 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:32:31,665 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:32:31,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1638264890, now seen corresponding path program 1 times [2018-07-23 22:32:31,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:32:31,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:31,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:32:31,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:31,668 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:32:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:32:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:32:31,937 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:32:31,937 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 22:32:31,938 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:32:31,938 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 22:32:31,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 22:32:31,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:32:31,941 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 4 states. [2018-07-23 22:32:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:32:36,469 INFO L93 Difference]: Finished difference Result 2352 states and 4016 transitions. [2018-07-23 22:32:36,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 22:32:36,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2018-07-23 22:32:36,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:32:36,495 INFO L225 Difference]: With dead ends: 2352 [2018-07-23 22:32:36,495 INFO L226 Difference]: Without dead ends: 1733 [2018-07-23 22:32:36,502 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:32:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2018-07-23 22:32:36,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1733. [2018-07-23 22:32:36,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-07-23 22:32:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2647 transitions. [2018-07-23 22:32:36,608 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2647 transitions. Word has length 145 [2018-07-23 22:32:36,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:32:36,611 INFO L471 AbstractCegarLoop]: Abstraction has 1733 states and 2647 transitions. [2018-07-23 22:32:36,611 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 22:32:36,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2647 transitions. [2018-07-23 22:32:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-07-23 22:32:36,634 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:32:36,635 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:32:36,635 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:32:36,635 INFO L82 PathProgramCache]: Analyzing trace with hash 2042073586, now seen corresponding path program 1 times [2018-07-23 22:32:36,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:32:36,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:36,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:32:36,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:32:36,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:32:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:32:37,223 WARN L169 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-07-23 22:32:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 84 proven. 107 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:32:37,585 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:32:37,586 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:32:37,587 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-07-23 22:32:37,588 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [291], [293], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [657], [660], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:32:37,654 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:32:37,655 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:32:43,385 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:32:43,387 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 22:32:43,401 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:32:48,900 INFO L232 lantSequenceWeakener]: Weakened 266 states. On average, predicates are now at 77.88% of their original sizes. [2018-07-23 22:32:48,900 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:32:49,308 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:32:49,309 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:32:49,310 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 22:32:49,310 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:32:49,313 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:32:49,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:32:49,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:32:49,314 INFO L87 Difference]: Start difference. First operand 1733 states and 2647 transitions. Second operand 7 states. [2018-07-23 22:33:03,302 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:33:22,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:33:22,404 INFO L93 Difference]: Finished difference Result 3645 states and 5568 transitions. [2018-07-23 22:33:22,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:33:22,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2018-07-23 22:33:22,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:33:22,417 INFO L225 Difference]: With dead ends: 3645 [2018-07-23 22:33:22,418 INFO L226 Difference]: Without dead ends: 1918 [2018-07-23 22:33:22,426 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 274 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:33:22,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2018-07-23 22:33:22,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1916. [2018-07-23 22:33:22,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1916 states. [2018-07-23 22:33:22,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2838 transitions. [2018-07-23 22:33:22,481 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2838 transitions. Word has length 274 [2018-07-23 22:33:22,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:33:22,482 INFO L471 AbstractCegarLoop]: Abstraction has 1916 states and 2838 transitions. [2018-07-23 22:33:22,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 22:33:22,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2838 transitions. [2018-07-23 22:33:22,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-07-23 22:33:22,494 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:33:22,494 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-23 22:33:22,495 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:33:22,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2146744798, now seen corresponding path program 1 times [2018-07-23 22:33:22,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:33:22,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:33:22,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:33:22,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:33:22,497 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:33:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:33:23,074 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 22:33:23,273 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-23 22:33:23,490 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 22:33:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 214 proven. 189 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:33:24,123 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:33:24,123 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:33:24,123 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 360 with the following transitions: [2018-07-23 22:33:24,124 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [291], [293], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [657], [660], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:33:24,130 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:33:24,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:33:37,362 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:33:37,363 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 22:33:37,371 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:33:47,953 INFO L232 lantSequenceWeakener]: Weakened 357 states. On average, predicates are now at 77.78% of their original sizes. [2018-07-23 22:33:47,954 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:33:49,850 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:33:49,851 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:33:49,851 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2018-07-23 22:33:49,851 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:33:49,853 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 22:33:49,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 22:33:49,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 22:33:49,854 INFO L87 Difference]: Start difference. First operand 1916 states and 2838 transitions. Second operand 11 states. [2018-07-23 22:34:26,905 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:34:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:34:43,029 INFO L93 Difference]: Finished difference Result 4015 states and 5941 transitions. [2018-07-23 22:34:43,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 22:34:43,029 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 359 [2018-07-23 22:34:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:34:43,039 INFO L225 Difference]: With dead ends: 4015 [2018-07-23 22:34:43,040 INFO L226 Difference]: Without dead ends: 1918 [2018-07-23 22:34:43,048 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 365 GetRequests, 312 SyntacticMatches, 37 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 22:34:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2018-07-23 22:34:43,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1916. [2018-07-23 22:34:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1916 states. [2018-07-23 22:34:43,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2832 transitions. [2018-07-23 22:34:43,102 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2832 transitions. Word has length 359 [2018-07-23 22:34:43,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:34:43,103 INFO L471 AbstractCegarLoop]: Abstraction has 1916 states and 2832 transitions. [2018-07-23 22:34:43,103 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 22:34:43,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2832 transitions. [2018-07-23 22:34:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2018-07-23 22:34:43,115 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:34:43,116 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:34:43,116 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:34:43,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1971374026, now seen corresponding path program 1 times [2018-07-23 22:34:43,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:34:43,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:34:43,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:34:43,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:34:43,118 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:34:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:34:44,317 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 139 proven. 316 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:34:44,318 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:34:44,318 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:34:44,318 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 386 with the following transitions: [2018-07-23 22:34:44,319 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [291], [293], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [657], [660], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:34:44,324 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:34:44,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:35:04,526 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:35:04,526 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 22:35:04,534 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:35:25,345 INFO L232 lantSequenceWeakener]: Weakened 383 states. On average, predicates are now at 77.75% of their original sizes. [2018-07-23 22:35:25,345 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:35:26,712 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:35:26,712 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:35:26,714 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2018-07-23 22:35:26,714 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:35:26,716 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 22:35:26,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 22:35:26,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-23 22:35:26,717 INFO L87 Difference]: Start difference. First operand 1916 states and 2832 transitions. Second operand 11 states. [2018-07-23 22:35:58,080 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:36:11,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:36:11,761 INFO L93 Difference]: Finished difference Result 3831 states and 5756 transitions. [2018-07-23 22:36:11,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 22:36:11,762 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 385 [2018-07-23 22:36:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:36:11,771 INFO L225 Difference]: With dead ends: 3831 [2018-07-23 22:36:11,771 INFO L226 Difference]: Without dead ends: 2104 [2018-07-23 22:36:11,779 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 392 GetRequests, 338 SyntacticMatches, 37 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-07-23 22:36:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2018-07-23 22:36:11,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2101. [2018-07-23 22:36:11,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2101 states. [2018-07-23 22:36:11,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 3031 transitions. [2018-07-23 22:36:11,843 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 3031 transitions. Word has length 385 [2018-07-23 22:36:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:36:11,843 INFO L471 AbstractCegarLoop]: Abstraction has 2101 states and 3031 transitions. [2018-07-23 22:36:11,844 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 22:36:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 3031 transitions. [2018-07-23 22:36:11,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2018-07-23 22:36:11,860 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:36:11,860 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:36:11,860 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:36:11,861 INFO L82 PathProgramCache]: Analyzing trace with hash -693708026, now seen corresponding path program 1 times [2018-07-23 22:36:11,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:36:11,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:36:11,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:36:11,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:36:11,862 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:36:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:36:12,625 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 261 proven. 166 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-07-23 22:36:12,626 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:36:12,626 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:36:12,627 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 471 with the following transitions: [2018-07-23 22:36:12,628 INFO L201 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [291], [293], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [657], [660], [661], [664], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-07-23 22:36:12,638 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:36:12,638 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 22:36:15,115 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 22:36:15,116 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 22:36:15,117 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 22:36:15,117 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:36:15,117 INFO L191 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 [2018-07-23 22:36:15,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:36:15,129 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 22:36:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:36:15,334 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 22:36:15,382 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 22:36:15,583 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 22:36:15,584 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:36:15,589 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:36:15,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:36:15 BoogieIcfgContainer [2018-07-23 22:36:15,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:36:15,590 INFO L168 Benchmark]: Toolchain (without parser) took 234936.15 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 1.8 GB in the end (delta: -342.7 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-07-23 22:36:15,591 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-07-23 22:36:15,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 855.15 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-07-23 22:36:15,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.66 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. [2018-07-23 22:36:15,593 INFO L168 Benchmark]: Boogie Preprocessor took 340.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.7 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -924.0 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2018-07-23 22:36:15,596 INFO L168 Benchmark]: RCFGBuilder took 3891.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 151.2 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. [2018-07-23 22:36:15,597 INFO L168 Benchmark]: TraceAbstraction took 229710.27 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 366.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-23 22:36:15,602 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 855.15 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 132.66 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. * Boogie Preprocessor took 340.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.7 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -924.0 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3891.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 151.2 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229710.27 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 366.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was analyzing trace of length 471 with TraceHistMax 5, 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, 255 locations, 1 error locations. TIMEOUT Result, 229.6s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 140.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1071 SDtfs, 3850 SDslu, 879 SDs, 0 SdLazy, 5099 SolverSat, 1165 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 98.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1051 GetRequests, 925 SyntacticMatches, 77 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2101occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 41.7s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9961786963661025 AbsIntWeakeningRatio, 0.08866995073891626 AbsIntAvgWeakeningVarsNumRemoved, 259.3812807881773 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1348 NumberOfCodeBlocks, 1348 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1342 ConstructedInterpolants, 0 QuantifiedInterpolants, 4518288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 536/1148 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label42_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-36-15-617.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label42_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-36-15-617.csv Completed graceful shutdown