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/Problem19_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:50:51,686 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:50:51,688 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:50:51,703 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:50:51,703 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:50:51,704 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:50:51,705 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:50:51,707 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:50:51,709 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:50:51,709 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:50:51,710 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:50:51,711 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:50:51,711 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:50:51,713 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:50:51,716 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:50:51,717 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:50:51,717 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:50:51,721 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:50:51,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:50:51,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:50:51,738 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:50:51,739 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:50:51,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:50:51,744 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:50:51,744 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:50:51,745 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:50:51,748 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:50:51,748 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:50:51,749 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:50:51,750 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:50:51,750 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:50:51,753 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:50:51,754 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:50:51,754 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:50:51,755 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:50:51,755 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:50:51,755 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 12:50:51,778 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:50:51,779 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:50:51,780 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:50:51,780 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:50:51,780 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:50:51,780 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:50:51,780 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:50:51,781 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:50:51,781 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:50:51,781 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:50:51,781 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:50:51,782 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:50:51,782 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:50:51,782 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:50:51,783 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:50:51,783 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:50:51,783 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:50:51,783 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:50:51,783 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:50:51,784 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:50:51,784 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:50:51,784 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:50:51,784 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:50:51,784 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:50:51,785 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:50:51,785 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:50:51,785 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:50:51,785 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:50:51,785 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:50:51,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:50:51,786 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:50:51,786 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:50:51,786 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:50:51,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:50:51,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:50:51,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:50:51,861 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:50:51,862 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:50:51,863 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label52_true-unreach-call.c [2018-09-10 12:50:52,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6d29658/204b0cec20054089965faadc1a095628/FLAGba113c3f8 [2018-09-10 12:50:52,911 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:50:52,912 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label52_true-unreach-call.c [2018-09-10 12:50:52,967 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6d29658/204b0cec20054089965faadc1a095628/FLAGba113c3f8 [2018-09-10 12:50:52,988 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6d29658/204b0cec20054089965faadc1a095628 [2018-09-10 12:50:53,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:50:53,006 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:50:53,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:50:53,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:50:53,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:50:53,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:50:52" (1/1) ... [2018-09-10 12:50:53,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a21620d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:53, skipping insertion in model container [2018-09-10 12:50:53,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:50:52" (1/1) ... [2018-09-10 12:50:53,525 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:50:55,165 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:50:55,195 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:50:56,397 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:50:57,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57 WrapperNode [2018-09-10 12:50:57,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:50:57,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:50:57,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:50:57,168 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:50:57,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:57,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:57,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:50:57,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:50:57,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:50:57,494 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:50:58,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:58,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:59,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:59,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:59,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:59,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:59,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (1/1) ... [2018-09-10 12:50:59,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:50:59,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:50:59,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:50:59,704 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:50:59,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (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 12:50:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:50:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:50:59,769 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_output5 [2018-09-10 12:50:59,769 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_output5 [2018-09-10 12:50:59,769 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_output [2018-09-10 12:50:59,770 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 12:50:59,770 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_output6 [2018-09-10 12:50:59,770 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_output6 [2018-09-10 12:50:59,770 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_output3 [2018-09-10 12:50:59,770 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_output3 [2018-09-10 12:50:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:50:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:50:59,771 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_output4 [2018-09-10 12:50:59,771 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_output4 [2018-09-10 12:50:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:50:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:50:59,772 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 12:50:59,772 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 12:51:21,701 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:51:21,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:51:21 BoogieIcfgContainer [2018-09-10 12:51:21,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:51:21,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:51:21,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:51:21,706 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:51:21,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:50:52" (1/3) ... [2018-09-10 12:51:21,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210bb4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:51:21, skipping insertion in model container [2018-09-10 12:51:21,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:50:57" (2/3) ... [2018-09-10 12:51:21,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210bb4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:51:21, skipping insertion in model container [2018-09-10 12:51:21,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:51:21" (3/3) ... [2018-09-10 12:51:21,710 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label52_true-unreach-call.c [2018-09-10 12:51:21,720 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:51:21,729 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:51:21,803 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:51:21,804 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:51:21,804 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:51:21,805 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:51:21,805 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:51:21,805 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:51:21,805 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:51:21,805 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:51:21,805 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:51:21,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-10 12:51:21,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-10 12:51:21,884 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:51:21,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:51:21,887 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 12:51:21,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1640649018, now seen corresponding path program 1 times [2018-09-10 12:51:21,896 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:51:21,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:51:21,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:51:21,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:51:21,956 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:51:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:51:22,419 WARN L175 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:51:22,482 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 12:51:22,485 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:51:22,485 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 12:51:22,485 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:51:22,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:51:22,507 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:51:22,507 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:51:22,510 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-10 12:51:39,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:51:39,514 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-09-10 12:51:39,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:51:39,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2018-09-10 12:51:39,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:51:39,564 INFO L225 Difference]: With dead ends: 4998 [2018-09-10 12:51:39,564 INFO L226 Difference]: Without dead ends: 3218 [2018-09-10 12:51:39,576 INFO L604 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 [2018-09-10 12:51:39,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-09-10 12:51:39,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-09-10 12:51:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-09-10 12:51:39,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-09-10 12:51:39,823 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 62 [2018-09-10 12:51:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:51:39,824 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-09-10 12:51:39,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:51:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-09-10 12:51:39,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-10 12:51:39,838 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:51:39,839 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, 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] [2018-09-10 12:51:39,839 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 12:51:39,839 INFO L82 PathProgramCache]: Analyzing trace with hash 34068091, now seen corresponding path program 1 times [2018-09-10 12:51:39,839 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:51:39,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:51:39,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:51:39,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:51:39,841 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:51:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:51:40,421 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:51:40,421 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:51:40,422 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:51:40,422 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:51:40,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:51:40,424 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:51:40,424 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:51:40,425 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-09-10 12:52:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:52:15,188 INFO L93 Difference]: Finished difference Result 9683 states and 17692 transitions. [2018-09-10 12:52:15,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:52:15,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-09-10 12:52:15,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:52:15,241 INFO L225 Difference]: With dead ends: 9683 [2018-09-10 12:52:15,242 INFO L226 Difference]: Without dead ends: 6474 [2018-09-10 12:52:15,254 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:52:15,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2018-09-10 12:52:15,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 6371. [2018-09-10 12:52:15,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6371 states. [2018-09-10 12:52:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 9959 transitions. [2018-09-10 12:52:15,467 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 9959 transitions. Word has length 134 [2018-09-10 12:52:15,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:52:15,468 INFO L480 AbstractCegarLoop]: Abstraction has 6371 states and 9959 transitions. [2018-09-10 12:52:15,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:52:15,468 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 9959 transitions. [2018-09-10 12:52:15,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-10 12:52:15,472 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:52:15,472 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, 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] [2018-09-10 12:52:15,472 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 12:52:15,473 INFO L82 PathProgramCache]: Analyzing trace with hash -671566896, now seen corresponding path program 1 times [2018-09-10 12:52:15,473 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:52:15,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:52:15,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:52:15,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:52:15,475 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:52:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:52:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:52:15,736 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:52:15,737 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:52:15,737 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:52:15,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:52:15,738 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:52:15,738 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:52:15,738 INFO L87 Difference]: Start difference. First operand 6371 states and 9959 transitions. Second operand 6 states. [2018-09-10 12:52:49,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:52:49,185 INFO L93 Difference]: Finished difference Result 24565 states and 39558 transitions. [2018-09-10 12:52:49,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:52:49,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-09-10 12:52:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:52:49,280 INFO L225 Difference]: With dead ends: 24565 [2018-09-10 12:52:49,281 INFO L226 Difference]: Without dead ends: 18200 [2018-09-10 12:52:49,317 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:52:49,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18200 states. [2018-09-10 12:52:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18200 to 17986. [2018-09-10 12:52:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17986 states. [2018-09-10 12:52:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17986 states to 17986 states and 26522 transitions. [2018-09-10 12:52:49,766 INFO L78 Accepts]: Start accepts. Automaton has 17986 states and 26522 transitions. Word has length 136 [2018-09-10 12:52:49,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:52:49,767 INFO L480 AbstractCegarLoop]: Abstraction has 17986 states and 26522 transitions. [2018-09-10 12:52:49,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:52:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 17986 states and 26522 transitions. [2018-09-10 12:52:49,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-09-10 12:52:49,772 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:52:49,773 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:52:49,773 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 12:52:49,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1062853705, now seen corresponding path program 1 times [2018-09-10 12:52:49,774 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:52:49,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:52:49,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:52:49,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:52:49,775 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:52:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:52:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:52:50,232 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:52:50,232 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-10 12:52:50,232 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:52:50,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-10 12:52:50,233 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-10 12:52:50,234 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-10 12:52:50,234 INFO L87 Difference]: Start difference. First operand 17986 states and 26522 transitions. Second operand 7 states. [2018-09-10 12:53:46,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:53:46,080 INFO L93 Difference]: Finished difference Result 72445 states and 117135 transitions. [2018-09-10 12:53:46,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-10 12:53:46,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2018-09-10 12:53:46,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:53:46,326 INFO L225 Difference]: With dead ends: 72445 [2018-09-10 12:53:46,327 INFO L226 Difference]: Without dead ends: 54465 [2018-09-10 12:53:46,455 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:53:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54465 states. [2018-09-10 12:53:47,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54465 to 54063. [2018-09-10 12:53:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54063 states. [2018-09-10 12:53:47,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54063 states to 54063 states and 76338 transitions. [2018-09-10 12:53:47,791 INFO L78 Accepts]: Start accepts. Automaton has 54063 states and 76338 transitions. Word has length 186 [2018-09-10 12:53:47,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:53:47,792 INFO L480 AbstractCegarLoop]: Abstraction has 54063 states and 76338 transitions. [2018-09-10 12:53:47,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-10 12:53:47,792 INFO L276 IsEmpty]: Start isEmpty. Operand 54063 states and 76338 transitions. [2018-09-10 12:53:47,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-09-10 12:53:47,799 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:53:47,799 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:47,800 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 12:53:47,800 INFO L82 PathProgramCache]: Analyzing trace with hash -754872318, now seen corresponding path program 1 times [2018-09-10 12:53:47,800 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:53:47,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:53:47,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:53:47,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:53:47,801 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:53:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:53:48,063 WARN L175 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:53:48,474 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:53:48,474 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:53:48,475 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:53:48,475 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:53:48,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:53:48,476 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:53:48,476 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:53:48,476 INFO L87 Difference]: Start difference. First operand 54063 states and 76338 transitions. Second operand 6 states. [2018-09-10 12:54:18,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:54:18,425 INFO L93 Difference]: Finished difference Result 144870 states and 218676 transitions. [2018-09-10 12:54:18,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:54:18,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2018-09-10 12:54:18,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:54:18,761 INFO L225 Difference]: With dead ends: 144870 [2018-09-10 12:54:18,761 INFO L226 Difference]: Without dead ends: 90813 [2018-09-10 12:54:18,892 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:54:18,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90813 states. [2018-09-10 12:54:20,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90813 to 90128. [2018-09-10 12:54:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90128 states. [2018-09-10 12:54:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90128 states to 90128 states and 127723 transitions. [2018-09-10 12:54:20,675 INFO L78 Accepts]: Start accepts. Automaton has 90128 states and 127723 transitions. Word has length 195 [2018-09-10 12:54:20,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:54:20,677 INFO L480 AbstractCegarLoop]: Abstraction has 90128 states and 127723 transitions. [2018-09-10 12:54:20,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:54:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 90128 states and 127723 transitions. [2018-09-10 12:54:20,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-09-10 12:54:20,694 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:54:20,695 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, 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, 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 12:54:20,695 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 12:54:20,695 INFO L82 PathProgramCache]: Analyzing trace with hash 979623087, now seen corresponding path program 1 times [2018-09-10 12:54:20,695 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:54:20,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:54:20,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:54:20,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:54:20,697 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:54:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:54:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 110 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:54:21,213 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:54:21,213 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 12:54:21,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:54:21,232 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:54:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:54:21,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:54:21,584 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-09-10 12:54:21,585 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:54:21,747 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 12:54:21,768 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:54:21,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 7 [2018-09-10 12:54:21,769 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:54:21,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:54:21,770 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:54:21,770 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-10 12:54:21,770 INFO L87 Difference]: Start difference. First operand 90128 states and 127723 transitions. Second operand 3 states. [2018-09-10 12:54:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:54:41,174 INFO L93 Difference]: Finished difference Result 209028 states and 312110 transitions. [2018-09-10 12:54:41,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:54:41,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2018-09-10 12:54:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:54:41,684 INFO L225 Difference]: With dead ends: 209028 [2018-09-10 12:54:41,684 INFO L226 Difference]: Without dead ends: 118906 [2018-09-10 12:54:41,906 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-10 12:54:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118906 states. [2018-09-10 12:54:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118906 to 118852. [2018-09-10 12:54:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118852 states. [2018-09-10 12:54:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118852 states to 118852 states and 167802 transitions. [2018-09-10 12:54:45,005 INFO L78 Accepts]: Start accepts. Automaton has 118852 states and 167802 transitions. Word has length 246 [2018-09-10 12:54:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:54:45,006 INFO L480 AbstractCegarLoop]: Abstraction has 118852 states and 167802 transitions. [2018-09-10 12:54:45,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:54:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 118852 states and 167802 transitions. [2018-09-10 12:54:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-09-10 12:54:45,037 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:54:45,037 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-10 12:54:45,037 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 12:54:45,037 INFO L82 PathProgramCache]: Analyzing trace with hash 682734885, now seen corresponding path program 1 times [2018-09-10 12:54:45,038 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:54:45,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:54:45,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:54:45,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:54:45,039 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:54:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:54:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 165 proven. 145 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-09-10 12:54:45,356 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:54:45,356 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 12:54:45,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:54:45,365 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:54:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:54:45,488 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:54:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-09-10 12:54:45,651 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:54:45,818 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 165 proven. 145 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-09-10 12:54:45,838 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:54:45,838 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-10 12:54:45,839 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:54:45,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:54:45,840 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:54:45,840 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:54:45,840 INFO L87 Difference]: Start difference. First operand 118852 states and 167802 transitions. Second operand 5 states. Received shutdown request... [2018-09-10 12:54:51,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:54:51,611 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:54:51,615 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:54:51,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:54:51 BoogieIcfgContainer [2018-09-10 12:54:51,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:54:51,616 INFO L168 Benchmark]: Toolchain (without parser) took 238614.89 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 208.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-10 12:54:51,617 INFO L168 Benchmark]: CDTParser took 0.19 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 12:54:51,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4156.32 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 192.4 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -111.4 MB). Peak memory consumption was 493.0 MB. Max. memory is 7.1 GB. [2018-09-10 12:54:51,619 INFO L168 Benchmark]: Boogie Procedure Inliner took 326.43 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 62.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 7.1 GB. [2018-09-10 12:54:51,619 INFO L168 Benchmark]: Boogie Preprocessor took 2209.14 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 834.1 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -835.7 MB). Peak memory consumption was 125.6 MB. Max. memory is 7.1 GB. [2018-09-10 12:54:51,620 INFO L168 Benchmark]: RCFGBuilder took 21999.00 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 251.1 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 269.4 MB). Peak memory consumption was 999.6 MB. Max. memory is 7.1 GB. [2018-09-10 12:54:51,621 INFO L168 Benchmark]: TraceAbstraction took 209912.64 ms. Allocated memory was 2.8 GB in the beginning and 3.8 GB in the end (delta: 996.1 MB). Free memory was 2.0 GB in the beginning and 1.2 GB in the end (delta: 823.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-10 12:54:51,626 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 4156.32 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 192.4 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -111.4 MB). Peak memory consumption was 493.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 326.43 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 62.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2209.14 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 834.1 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -835.7 MB). Peak memory consumption was 125.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 21999.00 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 251.1 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 269.4 MB). Peak memory consumption was 999.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209912.64 ms. Allocated memory was 2.8 GB in the beginning and 3.8 GB in the end (delta: 996.1 MB). Free memory was 2.0 GB in the beginning and 1.2 GB in the end (delta: 823.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 181]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 181). Cancelled while BasicCegarLoop was constructing difference of abstraction (118852states) and FLOYD_HOARE automaton (currently 8 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (57267 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 209.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 198.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6532 SDtfs, 35874 SDslu, 4957 SDs, 0 SdLazy, 63916 SolverSat, 16380 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 174.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1177 GetRequests, 1129 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118852occurred 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: 7.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1461 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1831 NumberOfCodeBlocks, 1831 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2379 ConstructedInterpolants, 0 QuantifiedInterpolants, 1444955 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1033 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1614/1987 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/Problem19_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-54-51-640.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-54-51-640.csv Completed graceful shutdown