java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:29:55,662 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:29:55,664 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:29:55,676 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:29:55,676 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:29:55,677 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:29:55,679 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:29:55,680 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:29:55,682 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:29:55,683 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:29:55,684 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:29:55,684 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:29:55,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:29:55,686 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:29:55,687 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:29:55,688 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:29:55,688 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:29:55,690 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:29:55,692 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:29:55,694 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:29:55,695 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:29:55,696 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:29:55,699 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:29:55,699 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:29:55,699 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:29:55,700 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:29:55,701 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:29:55,702 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:29:55,703 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:29:55,704 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:29:55,704 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:29:55,705 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:29:55,705 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:29:55,706 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:29:55,707 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:29:55,707 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:29:55,708 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 12:29:55,731 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:29:55,731 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:29:55,732 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:29:55,732 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:29:55,732 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:29:55,732 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:29:55,733 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:29:55,733 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:29:55,734 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:29:55,734 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:29:55,734 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:29:55,735 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:29:55,735 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:29:55,735 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:29:55,735 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:29:55,736 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:29:55,736 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:29:55,736 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:29:55,736 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:29:55,737 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:29:55,737 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:29:55,737 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:29:55,737 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:29:55,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:29:55,738 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:29:55,738 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:29:55,738 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:29:55,738 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:29:55,740 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:29:55,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:29:55,740 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:29:55,740 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:29:55,740 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:29:55,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:29:55,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:29:55,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:29:55,809 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:29:55,810 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:29:55,810 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label42_true-unreach-call.c [2018-09-10 12:29:56,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09659bcc3/9847427bd84944259a5455093209c829/FLAG1011c4ccc [2018-09-10 12:29:56,565 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:29:56,566 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label42_true-unreach-call.c [2018-09-10 12:29:56,597 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09659bcc3/9847427bd84944259a5455093209c829/FLAG1011c4ccc [2018-09-10 12:29:56,619 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09659bcc3/9847427bd84944259a5455093209c829 [2018-09-10 12:29:56,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:29:56,637 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:29:56,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:29:56,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:29:56,648 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:29:56,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:29:56" (1/1) ... [2018-09-10 12:29:56,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a22209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:56, skipping insertion in model container [2018-09-10 12:29:56,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:29:56" (1/1) ... [2018-09-10 12:29:56,950 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:29:57,705 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:29:57,730 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:29:58,315 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:29:58,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58 WrapperNode [2018-09-10 12:29:58,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:29:58,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:29:58,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:29:58,560 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:29:58,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:58,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:58,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:29:58,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:29:58,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:29:58,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:29:59,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:59,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:59,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:59,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:59,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:59,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:59,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... [2018-09-10 12:29:59,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:29:59,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:29:59,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:29:59,689 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:29:59,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:29:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:29:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:29:59,768 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 [2018-09-10 12:29:59,768 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 [2018-09-10 12:29:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:29:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:29:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:29:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:29:59,769 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 [2018-09-10 12:29:59,769 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 [2018-09-10 12:30:10,773 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:30:10,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:30:10 BoogieIcfgContainer [2018-09-10 12:30:10,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:30:10,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:30:10,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:30:10,780 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:30:10,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:29:56" (1/3) ... [2018-09-10 12:30:10,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6571ae2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:30:10, skipping insertion in model container [2018-09-10 12:30:10,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:29:58" (2/3) ... [2018-09-10 12:30:10,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6571ae2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:30:10, skipping insertion in model container [2018-09-10 12:30:10,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:30:10" (3/3) ... [2018-09-10 12:30:10,784 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label42_true-unreach-call.c [2018-09-10 12:30:10,793 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:30:10,803 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:30:10,866 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:30:10,867 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:30:10,867 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:30:10,867 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:30:10,867 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:30:10,868 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:30:10,868 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:30:10,868 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:30:10,868 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:30:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-10 12:30:10,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-10 12:30:10,918 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:30:10,919 INFO L376 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] [2018-09-10 12:30:10,920 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:30:10,925 INFO L82 PathProgramCache]: Analyzing trace with hash -148669743, now seen corresponding path program 1 times [2018-09-10 12:30:10,928 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:30:10,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:30:10,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:30:10,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:30:10,976 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:30:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:30:11,455 WARN L175 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-10 12:30:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:30:11,478 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:30:11,479 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:30:11,479 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:30:11,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:30:11,500 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:30:11,501 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:30:11,504 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-10 12:30:22,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:30:22,597 INFO L93 Difference]: Finished difference Result 2125 states and 3954 transitions. [2018-09-10 12:30:22,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:30:22,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2018-09-10 12:30:22,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:30:22,636 INFO L225 Difference]: With dead ends: 2125 [2018-09-10 12:30:22,636 INFO L226 Difference]: Without dead ends: 1515 [2018-09-10 12:30:22,646 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:30:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2018-09-10 12:30:22,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1043. [2018-09-10 12:30:22,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-09-10 12:30:22,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1647 transitions. [2018-09-10 12:30:22,817 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1647 transitions. Word has length 47 [2018-09-10 12:30:22,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:30:22,818 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 1647 transitions. [2018-09-10 12:30:22,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:30:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1647 transitions. [2018-09-10 12:30:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-09-10 12:30:22,831 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:30:22,831 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:30:22,831 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:30:22,832 INFO L82 PathProgramCache]: Analyzing trace with hash -788659486, now seen corresponding path program 1 times [2018-09-10 12:30:22,832 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:30:22,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:30:22,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:30:22,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:30:22,834 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:30:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:30:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:30:23,186 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:30:23,187 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 12:30:23,187 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:30:23,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:30:23,189 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:30:23,189 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 12:30:23,190 INFO L87 Difference]: Start difference. First operand 1043 states and 1647 transitions. Second operand 5 states. [2018-09-10 12:30:33,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:30:33,648 INFO L93 Difference]: Finished difference Result 3017 states and 4847 transitions. [2018-09-10 12:30:33,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:30:33,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-09-10 12:30:33,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:30:33,666 INFO L225 Difference]: With dead ends: 3017 [2018-09-10 12:30:33,666 INFO L226 Difference]: Without dead ends: 1980 [2018-09-10 12:30:33,671 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:30:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2018-09-10 12:30:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1954. [2018-09-10 12:30:33,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-09-10 12:30:33,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2892 transitions. [2018-09-10 12:30:33,743 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2892 transitions. Word has length 119 [2018-09-10 12:30:33,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:30:33,744 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2892 transitions. [2018-09-10 12:30:33,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:30:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2892 transitions. [2018-09-10 12:30:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-09-10 12:30:33,755 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:30:33,756 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:30:33,756 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:30:33,756 INFO L82 PathProgramCache]: Analyzing trace with hash 175900161, now seen corresponding path program 1 times [2018-09-10 12:30:33,756 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:30:33,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:30:33,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:30:33,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:30:33,759 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:30:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:30:34,434 WARN L175 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-09-10 12:30:34,744 WARN L175 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-09-10 12:30:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:30:34,766 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:30:34,766 INFO L197 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 [2018-09-10 12:30:34,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:30:34,787 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:30:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:30:34,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:30:41,426 WARN L175 SmtUtils]: Spent 6.19 s on a formula simplification that was a NOOP. DAG size: 42 [2018-09-10 12:30:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:30:41,528 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:30:44,387 WARN L175 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-09-10 12:30:44,777 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:30:44,799 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:30:44,799 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-09-10 12:30:44,800 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:30:44,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:30:44,801 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:30:44,801 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2018-09-10 12:30:44,801 INFO L87 Difference]: Start difference. First operand 1954 states and 2892 transitions. Second operand 6 states. [2018-09-10 12:31:32,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:31:32,784 INFO L93 Difference]: Finished difference Result 7512 states and 11495 transitions. [2018-09-10 12:31:32,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 12:31:32,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-09-10 12:31:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:31:32,822 INFO L225 Difference]: With dead ends: 7512 [2018-09-10 12:31:32,822 INFO L226 Difference]: Without dead ends: 5564 [2018-09-10 12:31:32,838 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 239 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2018-09-10 12:31:32,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2018-09-10 12:31:32,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 5556. [2018-09-10 12:31:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5556 states. [2018-09-10 12:31:33,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5556 states to 5556 states and 8157 transitions. [2018-09-10 12:31:33,007 INFO L78 Accepts]: Start accepts. Automaton has 5556 states and 8157 transitions. Word has length 122 [2018-09-10 12:31:33,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:31:33,007 INFO L480 AbstractCegarLoop]: Abstraction has 5556 states and 8157 transitions. [2018-09-10 12:31:33,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:31:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5556 states and 8157 transitions. [2018-09-10 12:31:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-09-10 12:31:33,011 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:31:33,011 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:31:33,011 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:31:33,012 INFO L82 PathProgramCache]: Analyzing trace with hash -191203214, now seen corresponding path program 1 times [2018-09-10 12:31:33,012 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:31:33,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:31:33,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:31:33,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:31:33,013 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:31:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:31:33,243 WARN L175 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:31:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:31:33,278 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:31:33,278 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:31:33,278 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:31:33,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:31:33,279 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:31:33,279 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:31:33,279 INFO L87 Difference]: Start difference. First operand 5556 states and 8157 transitions. Second operand 6 states. [2018-09-10 12:31:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:31:38,879 INFO L93 Difference]: Finished difference Result 13426 states and 20050 transitions. [2018-09-10 12:31:38,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:31:38,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-09-10 12:31:38,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:31:38,926 INFO L225 Difference]: With dead ends: 13426 [2018-09-10 12:31:38,926 INFO L226 Difference]: Without dead ends: 7876 [2018-09-10 12:31:38,955 INFO L604 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 [2018-09-10 12:31:38,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7876 states. [2018-09-10 12:31:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7876 to 7811. [2018-09-10 12:31:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7811 states. [2018-09-10 12:31:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7811 states to 7811 states and 10108 transitions. [2018-09-10 12:31:39,165 INFO L78 Accepts]: Start accepts. Automaton has 7811 states and 10108 transitions. Word has length 127 [2018-09-10 12:31:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:31:39,165 INFO L480 AbstractCegarLoop]: Abstraction has 7811 states and 10108 transitions. [2018-09-10 12:31:39,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:31:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 7811 states and 10108 transitions. [2018-09-10 12:31:39,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-09-10 12:31:39,169 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:31:39,169 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:31:39,170 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:31:39,170 INFO L82 PathProgramCache]: Analyzing trace with hash -241245822, now seen corresponding path program 1 times [2018-09-10 12:31:39,170 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:31:39,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:31:39,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:31:39,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:31:39,171 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:31:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:31:39,417 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:31:39,417 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:31:39,417 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:31:39,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:31:39,427 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:31:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:31:39,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:31:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:31:39,546 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:31:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:31:39,680 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:31:39,680 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-10 12:31:39,681 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:31:39,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:31:39,682 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:31:39,682 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:31:39,682 INFO L87 Difference]: Start difference. First operand 7811 states and 10108 transitions. Second operand 3 states. [2018-09-10 12:31:46,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:31:46,093 INFO L93 Difference]: Finished difference Result 15616 states and 20242 transitions. [2018-09-10 12:31:46,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:31:46,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2018-09-10 12:31:46,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:31:46,129 INFO L225 Difference]: With dead ends: 15616 [2018-09-10 12:31:46,130 INFO L226 Difference]: Without dead ends: 7811 [2018-09-10 12:31:46,169 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 269 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:31:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7811 states. [2018-09-10 12:31:46,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7811 to 7811. [2018-09-10 12:31:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7811 states. [2018-09-10 12:31:46,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7811 states to 7811 states and 9615 transitions. [2018-09-10 12:31:46,343 INFO L78 Accepts]: Start accepts. Automaton has 7811 states and 9615 transitions. Word has length 135 [2018-09-10 12:31:46,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:31:46,344 INFO L480 AbstractCegarLoop]: Abstraction has 7811 states and 9615 transitions. [2018-09-10 12:31:46,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:31:46,344 INFO L276 IsEmpty]: Start isEmpty. Operand 7811 states and 9615 transitions. [2018-09-10 12:31:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-10 12:31:46,349 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:31:46,350 INFO L376 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, 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] [2018-09-10 12:31:46,350 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:31:46,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1237625563, now seen corresponding path program 1 times [2018-09-10 12:31:46,350 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:31:46,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:31:46,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:31:46,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:31:46,352 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:31:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:31:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-09-10 12:31:46,583 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:31:46,583 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 12:31:46,583 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:31:46,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:31:46,584 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:31:46,584 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:31:46,584 INFO L87 Difference]: Start difference. First operand 7811 states and 9615 transitions. Second operand 3 states. [2018-09-10 12:31:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:31:54,384 INFO L93 Difference]: Finished difference Result 20011 states and 25140 transitions. [2018-09-10 12:31:54,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:31:54,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2018-09-10 12:31:54,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:31:54,444 INFO L225 Difference]: With dead ends: 20011 [2018-09-10 12:31:54,444 INFO L226 Difference]: Without dead ends: 12206 [2018-09-10 12:31:54,461 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:31:54,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12206 states. [2018-09-10 12:31:54,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12206 to 12206. [2018-09-10 12:31:54,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12206 states. [2018-09-10 12:31:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12206 states to 12206 states and 14504 transitions. [2018-09-10 12:31:54,674 INFO L78 Accepts]: Start accepts. Automaton has 12206 states and 14504 transitions. Word has length 211 [2018-09-10 12:31:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:31:54,675 INFO L480 AbstractCegarLoop]: Abstraction has 12206 states and 14504 transitions. [2018-09-10 12:31:54,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:31:54,676 INFO L276 IsEmpty]: Start isEmpty. Operand 12206 states and 14504 transitions. [2018-09-10 12:31:54,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-10 12:31:54,686 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:31:54,686 INFO L376 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, 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] [2018-09-10 12:31:54,687 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:31:54,687 INFO L82 PathProgramCache]: Analyzing trace with hash -2053304205, now seen corresponding path program 1 times [2018-09-10 12:31:54,687 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:31:54,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:31:54,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:31:54,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:31:54,688 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:31:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:31:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 85 proven. 80 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-09-10 12:31:54,956 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:31:54,956 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:31:54,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:31:54,965 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:31:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:31:55,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:31:55,378 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-10 12:31:55,378 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:31:56,225 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 85 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:31:56,247 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:31:56,247 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:31:56,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:31:56,263 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:31:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:31:56,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:31:56,618 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-10 12:31:56,618 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:31:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 85 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:31:57,184 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:31:57,184 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 17 [2018-09-10 12:31:57,184 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:31:57,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-10 12:31:57,186 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-10 12:31:57,186 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-09-10 12:31:57,187 INFO L87 Difference]: Start difference. First operand 12206 states and 14504 transitions. Second operand 11 states. Received shutdown request... [2018-09-10 12:34:20,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-10 12:34:20,630 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:34:20,635 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:34:20,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:34:20 BoogieIcfgContainer [2018-09-10 12:34:20,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:34:20,636 INFO L168 Benchmark]: Toolchain (without parser) took 264002.91 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2018-09-10 12:34:20,637 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-10 12:34:20,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1921.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-09-10 12:34:20,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 278.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-10 12:34:20,639 INFO L168 Benchmark]: Boogie Preprocessor took 849.43 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 943.7 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-09-10 12:34:20,640 INFO L168 Benchmark]: RCFGBuilder took 11085.61 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 505.4 MB). Peak memory consumption was 505.4 MB. Max. memory is 7.1 GB. [2018-09-10 12:34:20,641 INFO L168 Benchmark]: TraceAbstraction took 249860.43 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 507.5 MB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -954.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 12:34:20,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1921.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 278.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 849.43 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 943.7 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11085.61 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 505.4 MB). Peak memory consumption was 505.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249860.43 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 507.5 MB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -954.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 128). Cancelled while BasicCegarLoop was constructing difference of abstraction (12206states) and FLOYD_HOARE automaton (currently 17 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (15138 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 249.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 233.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2609 SDtfs, 11763 SDslu, 1966 SDs, 0 SdLazy, 22598 SolverSat, 5093 SolverUnsat, 73 SolverUnknown, 0 SolverNotchecked, 224.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1474 GetRequests, 1403 SyntacticMatches, 14 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12206occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 571 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 1690 NumberOfCodeBlocks, 1690 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2380 ConstructedInterpolants, 266 QuantifiedInterpolants, 2773864 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1399 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 984/1316 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/Problem17_label42_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-34-20-658.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label42_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-34-20-658.csv Completed graceful shutdown