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/Problem16_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:45:53,570 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:45:53,573 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:45:53,585 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:45:53,586 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:45:53,587 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:45:53,588 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:45:53,590 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:45:53,592 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:45:53,592 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:45:53,593 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:45:53,594 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:45:53,595 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:45:53,595 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:45:53,596 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:45:53,597 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:45:53,598 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:45:53,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:45:53,602 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:45:53,603 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:45:53,605 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:45:53,606 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:45:53,608 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 22:45:53,608 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 22:45:53,609 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 22:45:53,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 22:45:53,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 22:45:53,612 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 22:45:53,612 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 22:45:53,614 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 22:45:53,614 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 22:45:53,615 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 22:45:53,615 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 22:45:53,615 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 22:45:53,616 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 22:45:53,617 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 22:45:53,617 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 22:45:53,633 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:45:53,633 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:45:53,634 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:45:53,634 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:45:53,634 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:45:53,634 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:45:53,635 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:45:53,635 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:45:53,635 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:45:53,635 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:45:53,635 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:45:53,636 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:45:53,636 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:45:53,636 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:45:53,637 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:45:53,637 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:45:53,637 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:45:53,637 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:45:53,637 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:45:53,638 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:45:53,638 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:45:53,638 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:45:53,638 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:45:53,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:45:53,639 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:45:53,639 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:45:53,639 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:45:53,639 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:45:53,639 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:45:53,640 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:45:53,640 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:45:53,640 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:45:53,640 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:45:53,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:45:53,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:45:53,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:45:53,713 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:45:53,713 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:45:53,714 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label07_true-unreach-call.c [2018-07-23 22:45:54,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee36dbab5/f133c93443e6473c88573033fd5f813a/FLAG8c10ea79a [2018-07-23 22:45:54,476 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:45:54,477 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label07_true-unreach-call.c [2018-07-23 22:45:54,504 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee36dbab5/f133c93443e6473c88573033fd5f813a/FLAG8c10ea79a [2018-07-23 22:45:54,521 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee36dbab5/f133c93443e6473c88573033fd5f813a [2018-07-23 22:45:54,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:45:54,533 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:45:54,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:45:54,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:45:54,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:45:54,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:45:54" (1/1) ... [2018-07-23 22:45:54,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37282a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:54, skipping insertion in model container [2018-07-23 22:45:54,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:45:54" (1/1) ... [2018-07-23 22:45:54,784 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:45:55,305 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:45:55,324 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:45:55,608 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:45:55,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55 WrapperNode [2018-07-23 22:45:55,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:45:55,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:45:55,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:45:55,737 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:45:55,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:55,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:55,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:45:55,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:45:55,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:45:55,933 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:45:56,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:56,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:56,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:56,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:56,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:56,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:56,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (1/1) ... [2018-07-23 22:45:56,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:45:56,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:45:56,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:45:56,393 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:45:56,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (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 22:45:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:45:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:45:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:45:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:45:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:45:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:45:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:45:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:45:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 22:45:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 22:46:03,466 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:46:03,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:46:03 BoogieIcfgContainer [2018-07-23 22:46:03,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:46:03,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:46:03,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:46:03,472 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:46:03,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:45:54" (1/3) ... [2018-07-23 22:46:03,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@994a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:46:03, skipping insertion in model container [2018-07-23 22:46:03,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:45:55" (2/3) ... [2018-07-23 22:46:03,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@994a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:46:03, skipping insertion in model container [2018-07-23 22:46:03,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:46:03" (3/3) ... [2018-07-23 22:46:03,477 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label07_true-unreach-call.c [2018-07-23 22:46:03,487 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:46:03,498 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:46:03,554 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:46:03,555 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:46:03,555 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:46:03,555 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:46:03,556 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:46:03,556 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:46:03,556 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:46:03,556 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:46:03,556 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:46:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-23 22:46:03,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 22:46:03,602 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:46:03,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:46:03,604 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:46:03,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1118989143, now seen corresponding path program 1 times [2018-07-23 22:46:03,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:46:03,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:46:03,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:46:03,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:46:03,666 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:46:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:46:04,149 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:46:04,258 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 22:46:04,260 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:46:04,261 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:46:04,261 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:46:04,268 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:46:04,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:46:04,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:46:04,287 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-07-23 22:46:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:46:08,569 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-07-23 22:46:08,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:46:08,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2018-07-23 22:46:08,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:46:08,596 INFO L225 Difference]: With dead ends: 1156 [2018-07-23 22:46:08,596 INFO L226 Difference]: Without dead ends: 744 [2018-07-23 22:46:08,606 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:46:08,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-07-23 22:46:08,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-07-23 22:46:08,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-23 22:46:08,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-07-23 22:46:08,743 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 61 [2018-07-23 22:46:08,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:46:08,743 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-07-23 22:46:08,744 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:46:08,744 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-07-23 22:46:08,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 22:46:08,757 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:46:08,757 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, 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] [2018-07-23 22:46:08,758 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:46:08,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1233366974, now seen corresponding path program 1 times [2018-07-23 22:46:08,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:46:08,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:46:08,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:46:08,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:46:08,762 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:46:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:46:09,088 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:46:09,088 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:46:09,089 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 22:46:09,089 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:46:09,091 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 22:46:09,091 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 22:46:09,091 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 22:46:09,092 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-07-23 22:46:15,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:46:15,315 INFO L93 Difference]: Finished difference Result 2189 states and 4061 transitions. [2018-07-23 22:46:15,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:46:15,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-07-23 22:46:15,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:46:15,330 INFO L225 Difference]: With dead ends: 2189 [2018-07-23 22:46:15,330 INFO L226 Difference]: Without dead ends: 1451 [2018-07-23 22:46:15,334 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:46:15,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2018-07-23 22:46:15,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1441. [2018-07-23 22:46:15,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2018-07-23 22:46:15,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2402 transitions. [2018-07-23 22:46:15,405 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2402 transitions. Word has length 133 [2018-07-23 22:46:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:46:15,406 INFO L471 AbstractCegarLoop]: Abstraction has 1441 states and 2402 transitions. [2018-07-23 22:46:15,406 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 22:46:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2402 transitions. [2018-07-23 22:46:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 22:46:15,412 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:46:15,412 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, 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] [2018-07-23 22:46:15,412 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:46:15,413 INFO L82 PathProgramCache]: Analyzing trace with hash 2085405745, now seen corresponding path program 1 times [2018-07-23 22:46:15,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:46:15,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:46:15,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:46:15,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:46:15,414 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:46:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:46:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 22:46:15,677 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:46:15,677 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:46:15,678 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-07-23 22:46:15,681 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-07-23 22:46:15,763 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:46:15,764 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:46:20,238 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:46:20,239 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 22:46:20,280 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:46:23,349 INFO L232 lantSequenceWeakener]: Weakened 157 states. On average, predicates are now at 78.6% of their original sizes. [2018-07-23 22:46:23,350 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:46:23,830 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:46:23,831 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:46:23,831 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-07-23 22:46:23,831 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:46:23,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:46:23,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:46:23,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:46:23,833 INFO L87 Difference]: Start difference. First operand 1441 states and 2402 transitions. Second operand 7 states. [2018-07-23 22:46:28,623 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:47:37,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:47:37,543 INFO L93 Difference]: Finished difference Result 3216 states and 5295 transitions. [2018-07-23 22:47:37,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:47:37,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2018-07-23 22:47:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:47:37,553 INFO L225 Difference]: With dead ends: 3216 [2018-07-23 22:47:37,554 INFO L226 Difference]: Without dead ends: 1781 [2018-07-23 22:47:37,559 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:47:37,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2018-07-23 22:47:37,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2018-07-23 22:47:37,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2018-07-23 22:47:37,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2747 transitions. [2018-07-23 22:47:37,614 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2747 transitions. Word has length 162 [2018-07-23 22:47:37,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:47:37,615 INFO L471 AbstractCegarLoop]: Abstraction has 1779 states and 2747 transitions. [2018-07-23 22:47:37,615 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 22:47:37,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2747 transitions. [2018-07-23 22:47:37,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-07-23 22:47:37,620 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:47:37,621 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:47:37,621 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:47:37,621 INFO L82 PathProgramCache]: Analyzing trace with hash -750474412, now seen corresponding path program 1 times [2018-07-23 22:47:37,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:47:37,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:47:37,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:47:37,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:47:37,623 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:47:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:47:37,977 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 175 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:47:37,977 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:47:37,978 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:47:37,978 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 255 with the following transitions: [2018-07-23 22:47:37,978 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [582], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-07-23 22:47:37,984 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:47:37,984 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:47:40,116 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:47:47,401 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:47:47,401 INFO L272 AbstractInterpreter]: Visited 109 different actions 211 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 22:47:47,425 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:47:54,467 INFO L232 lantSequenceWeakener]: Weakened 252 states. On average, predicates are now at 78.17% of their original sizes. [2018-07-23 22:47:54,468 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:47:56,859 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:47:56,859 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:47:56,860 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-07-23 22:47:56,860 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:47:56,861 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 22:47:56,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 22:47:56,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 22:47:56,862 INFO L87 Difference]: Start difference. First operand 1779 states and 2747 transitions. Second operand 11 states. [2018-07-23 22:49:28,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:49:28,812 INFO L93 Difference]: Finished difference Result 3896 states and 6142 transitions. [2018-07-23 22:49:28,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 22:49:28,812 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 254 [2018-07-23 22:49:28,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:49:28,825 INFO L225 Difference]: With dead ends: 3896 [2018-07-23 22:49:28,825 INFO L226 Difference]: Without dead ends: 2461 [2018-07-23 22:49:28,831 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 260 GetRequests, 195 SyntacticMatches, 49 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 22:49:28,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2018-07-23 22:49:28,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2458. [2018-07-23 22:49:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2458 states. [2018-07-23 22:49:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3444 transitions. [2018-07-23 22:49:28,904 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3444 transitions. Word has length 254 [2018-07-23 22:49:28,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:49:28,905 INFO L471 AbstractCegarLoop]: Abstraction has 2458 states and 3444 transitions. [2018-07-23 22:49:28,905 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 22:49:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3444 transitions. [2018-07-23 22:49:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-07-23 22:49:28,911 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:49:28,912 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:28,912 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:49:28,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1627509428, now seen corresponding path program 1 times [2018-07-23 22:49:28,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:49:28,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:49:28,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:49:28,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:49:28,914 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:49:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:49:29,229 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:49:29,507 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 109 proven. 6 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-07-23 22:49:29,507 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:49:29,507 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:49:29,507 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 291 with the following transitions: [2018-07-23 22:49:29,508 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [1374], [1378], [1382], [1388], [1392], [1394], [1579], [1580], [1581], [1583], [1584] [2018-07-23 22:49:29,513 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:49:29,514 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:49:33,621 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 22:49:42,891 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 22:49:42,892 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 22:49:42,893 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 22:49:42,893 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:49:42,893 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 22:49:42,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:49:42,902 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 22:49:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:49:43,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 22:49:43,077 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 22:49:43,279 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 22:49:43,279 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:49:43,284 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:49:43,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:49:43 BoogieIcfgContainer [2018-07-23 22:49:43,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:49:43,285 INFO L168 Benchmark]: Toolchain (without parser) took 228752.78 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.1 GB). Peak memory consumption was 483.0 MB. Max. memory is 7.1 GB. [2018-07-23 22:49:43,290 INFO L168 Benchmark]: CDTParser took 0.21 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 22:49:43,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1201.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-07-23 22:49:43,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 195.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2018-07-23 22:49:43,292 INFO L168 Benchmark]: Boogie Preprocessor took 459.00 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -968.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-07-23 22:49:43,298 INFO L168 Benchmark]: RCFGBuilder took 7074.99 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 271.8 MB). Peak memory consumption was 271.8 MB. Max. memory is 7.1 GB. [2018-07-23 22:49:43,299 INFO L168 Benchmark]: TraceAbstraction took 219816.21 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 220.3 MB. Max. memory is 7.1 GB. [2018-07-23 22:49:43,309 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1201.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 195.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 459.00 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -968.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7074.99 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 271.8 MB). Peak memory consumption was 271.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219816.21 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 220.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 169]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 169). Cancelled while BasicCegarLoop was analyzing trace of length 291 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 219.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 176.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1021 SDtfs, 4205 SDslu, 783 SDs, 0 SdLazy, 6260 SolverSat, 1517 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 436 GetRequests, 355 SyntacticMatches, 52 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2458occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 27.4s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9951253238115242 AbsIntWeakeningRatio, 0.1111111111111111 AbsIntAvgWeakeningVarsNumRemoved, 365.72705314009664 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 610 NumberOfCodeBlocks, 610 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 606 ConstructedInterpolants, 0 QuantifiedInterpolants, 453808 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 233/308 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/Problem16_label07_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-49-43-331.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label07_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-49-43-331.csv Completed graceful shutdown