java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 17:18:09,603 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 17:18:09,605 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 17:18:09,618 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 17:18:09,618 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 17:18:09,619 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 17:18:09,620 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 17:18:09,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 17:18:09,624 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 17:18:09,625 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 17:18:09,625 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 17:18:09,626 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 17:18:09,627 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 17:18:09,630 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 17:18:09,631 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 17:18:09,632 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 17:18:09,635 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 17:18:09,637 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 17:18:09,639 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 17:18:09,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 17:18:09,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 17:18:09,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 17:18:09,646 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 17:18:09,646 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 17:18:09,646 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 17:18:09,647 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 17:18:09,648 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 17:18:09,649 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 17:18:09,650 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 17:18:09,651 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 17:18:09,651 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 17:18:09,652 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 17:18:09,652 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 17:18:09,652 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 17:18:09,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 17:18:09,654 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 17:18:09,654 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 17:18:09,677 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 17:18:09,678 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 17:18:09,678 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 17:18:09,678 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 17:18:09,679 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 17:18:09,679 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 17:18:09,679 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 17:18:09,679 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 17:18:09,679 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 17:18:09,680 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 17:18:09,680 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 17:18:09,680 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 17:18:09,681 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 17:18:09,681 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 17:18:09,681 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 17:18:09,681 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 17:18:09,681 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 17:18:09,682 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 17:18:09,682 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 17:18:09,682 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 17:18:09,682 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 17:18:09,682 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 17:18:09,683 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 17:18:09,683 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 17:18:09,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 17:18:09,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 17:18:09,683 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 17:18:09,684 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 17:18:09,684 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 17:18:09,684 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 17:18:09,684 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 17:18:09,684 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 17:18:09,685 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 17:18:09,685 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 17:18:09,685 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 17:18:09,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 17:18:09,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 17:18:09,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 17:18:09,749 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 17:18:09,750 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 17:18:09,751 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label42_true-unreach-call.c [2018-07-21 17:18:10,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a83744a20/d3c4ebc746ab42a3812269130723c1f8/FLAGf63947eeb [2018-07-21 17:18:10,677 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 17:18:10,678 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label42_true-unreach-call.c [2018-07-21 17:18:10,722 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a83744a20/d3c4ebc746ab42a3812269130723c1f8/FLAGf63947eeb [2018-07-21 17:18:10,743 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a83744a20/d3c4ebc746ab42a3812269130723c1f8 [2018-07-21 17:18:10,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 17:18:10,764 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 17:18:10,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 17:18:10,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 17:18:10,776 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 17:18:10,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:18:10" (1/1) ... [2018-07-21 17:18:10,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5fd596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:10, skipping insertion in model container [2018-07-21 17:18:10,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:18:10" (1/1) ... [2018-07-21 17:18:11,230 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 17:18:12,655 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 17:18:12,673 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 17:18:13,731 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 17:18:14,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14 WrapperNode [2018-07-21 17:18:14,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 17:18:14,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 17:18:14,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 17:18:14,118 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 17:18:14,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:14,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:14,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 17:18:14,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 17:18:14,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 17:18:14,568 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 17:18:14,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:14,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:14,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:14,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:14,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:15,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:16,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... [2018-07-21 17:18:16,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 17:18:16,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 17:18:16,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 17:18:16,105 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 17:18:16,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 17:18:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 17:18:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 17:18:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 17:18:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 17:18:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 17:18:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 17:18:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 17:18:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 17:18:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 17:18:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 17:18:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 17:18:16,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 17:18:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 17:18:16,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 17:18:27,948 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 17:18:27,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:18:27 BoogieIcfgContainer [2018-07-21 17:18:27,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 17:18:27,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 17:18:27,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 17:18:27,960 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 17:18:27,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:18:10" (1/3) ... [2018-07-21 17:18:27,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d40b921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:18:27, skipping insertion in model container [2018-07-21 17:18:27,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:14" (2/3) ... [2018-07-21 17:18:27,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d40b921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:18:27, skipping insertion in model container [2018-07-21 17:18:27,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:18:27" (3/3) ... [2018-07-21 17:18:27,963 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label42_true-unreach-call.c [2018-07-21 17:18:27,971 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 17:18:27,979 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 17:18:28,038 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 17:18:28,039 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 17:18:28,039 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 17:18:28,039 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 17:18:28,040 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 17:18:28,040 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 17:18:28,040 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 17:18:28,040 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 17:18:28,040 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 17:18:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-21 17:18:28,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-07-21 17:18:28,097 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:18:28,098 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:18:28,099 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:18:28,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1413357044, now seen corresponding path program 1 times [2018-07-21 17:18:28,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:18:28,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:18:28,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:18:28,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:18:28,155 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:18:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:18:28,744 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-21 17:18:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:18:28,772 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:18:28,772 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 17:18:28,772 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:18:28,777 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 17:18:28,793 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 17:18:28,794 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 17:18:28,798 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-07-21 17:18:45,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:18:45,477 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-07-21 17:18:45,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 17:18:45,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2018-07-21 17:18:45,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:18:45,542 INFO L225 Difference]: With dead ends: 4105 [2018-07-21 17:18:45,542 INFO L226 Difference]: Without dead ends: 2979 [2018-07-21 17:18:45,559 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 17:18:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-07-21 17:18:45,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-07-21 17:18:45,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-07-21 17:18:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-07-21 17:18:45,815 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 72 [2018-07-21 17:18:45,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:18:45,817 INFO L471 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-07-21 17:18:45,817 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 17:18:45,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-07-21 17:18:45,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-21 17:18:45,833 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:18:45,838 INFO L358 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, 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] [2018-07-21 17:18:45,838 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:18:45,838 INFO L82 PathProgramCache]: Analyzing trace with hash -519003095, now seen corresponding path program 1 times [2018-07-21 17:18:45,838 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:18:45,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:18:45,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:18:45,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:18:45,840 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:18:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:18:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:18:46,137 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:18:46,138 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 17:18:46,138 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:18:46,140 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 17:18:46,140 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 17:18:46,140 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 17:18:46,140 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 5 states. [2018-07-21 17:19:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:19:02,274 INFO L93 Difference]: Finished difference Result 8356 states and 15224 transitions. [2018-07-21 17:19:02,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 17:19:02,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-07-21 17:19:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:19:02,317 INFO L225 Difference]: With dead ends: 8356 [2018-07-21 17:19:02,317 INFO L226 Difference]: Without dead ends: 5513 [2018-07-21 17:19:02,329 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 17:19:02,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5513 states. [2018-07-21 17:19:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5513 to 5394. [2018-07-21 17:19:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5394 states. [2018-07-21 17:19:02,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 8802 transitions. [2018-07-21 17:19:02,557 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 8802 transitions. Word has length 143 [2018-07-21 17:19:02,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:19:02,557 INFO L471 AbstractCegarLoop]: Abstraction has 5394 states and 8802 transitions. [2018-07-21 17:19:02,557 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 17:19:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 8802 transitions. [2018-07-21 17:19:02,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-21 17:19:02,571 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:19:02,572 INFO L358 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:19:02,572 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:19:02,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1667964040, now seen corresponding path program 1 times [2018-07-21 17:19:02,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:19:02,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:19:02,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:19:02,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:19:02,574 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:19:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:19:02,870 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:19:02,870 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:19:02,889 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 17:19:02,889 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:19:02,889 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 17:19:02,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 17:19:02,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 17:19:02,890 INFO L87 Difference]: Start difference. First operand 5394 states and 8802 transitions. Second operand 6 states. [2018-07-21 17:19:11,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:19:11,866 INFO L93 Difference]: Finished difference Result 20732 states and 35669 transitions. [2018-07-21 17:19:11,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 17:19:11,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-07-21 17:19:11,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:19:11,961 INFO L225 Difference]: With dead ends: 20732 [2018-07-21 17:19:11,962 INFO L226 Difference]: Without dead ends: 15344 [2018-07-21 17:19:12,008 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 17:19:12,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2018-07-21 17:19:12,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 15275. [2018-07-21 17:19:12,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15275 states. [2018-07-21 17:19:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15275 states to 15275 states and 22967 transitions. [2018-07-21 17:19:12,697 INFO L78 Accepts]: Start accepts. Automaton has 15275 states and 22967 transitions. Word has length 165 [2018-07-21 17:19:12,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:19:12,698 INFO L471 AbstractCegarLoop]: Abstraction has 15275 states and 22967 transitions. [2018-07-21 17:19:12,698 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 17:19:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 15275 states and 22967 transitions. [2018-07-21 17:19:12,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-07-21 17:19:12,713 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:19:12,713 INFO L358 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, 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] [2018-07-21 17:19:12,713 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:19:12,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1077928619, now seen corresponding path program 1 times [2018-07-21 17:19:12,714 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:19:12,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:19:12,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:19:12,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:19:12,715 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:19:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:19:13,106 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 17:19:13,528 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:19:13,528 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:19:13,528 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 17:19:13,528 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:19:13,529 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 17:19:13,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 17:19:13,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 17:19:13,530 INFO L87 Difference]: Start difference. First operand 15275 states and 22967 transitions. Second operand 6 states. [2018-07-21 17:19:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:19:22,728 INFO L93 Difference]: Finished difference Result 41280 states and 67933 transitions. [2018-07-21 17:19:22,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 17:19:22,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 210 [2018-07-21 17:19:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:19:22,876 INFO L225 Difference]: With dead ends: 41280 [2018-07-21 17:19:22,876 INFO L226 Difference]: Without dead ends: 26011 [2018-07-21 17:19:22,928 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 17:19:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26011 states. [2018-07-21 17:19:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26011 to 25897. [2018-07-21 17:19:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25897 states. [2018-07-21 17:19:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25897 states to 25897 states and 38592 transitions. [2018-07-21 17:19:23,962 INFO L78 Accepts]: Start accepts. Automaton has 25897 states and 38592 transitions. Word has length 210 [2018-07-21 17:19:23,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:19:23,963 INFO L471 AbstractCegarLoop]: Abstraction has 25897 states and 38592 transitions. [2018-07-21 17:19:23,963 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 17:19:23,964 INFO L276 IsEmpty]: Start isEmpty. Operand 25897 states and 38592 transitions. [2018-07-21 17:19:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-07-21 17:19:23,992 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:19:23,992 INFO L358 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:19:23,992 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:19:23,993 INFO L82 PathProgramCache]: Analyzing trace with hash 864947329, now seen corresponding path program 1 times [2018-07-21 17:19:23,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:19:23,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:19:23,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:19:23,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:19:23,994 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:19:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:19:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:19:24,486 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 17:19:24,486 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 17:19:24,486 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:19:24,486 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 17:19:24,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 17:19:24,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 17:19:24,487 INFO L87 Difference]: Start difference. First operand 25897 states and 38592 transitions. Second operand 5 states. [2018-07-21 17:19:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 17:19:45,180 INFO L93 Difference]: Finished difference Result 72082 states and 114182 transitions. [2018-07-21 17:19:45,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 17:19:45,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 272 [2018-07-21 17:19:45,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 17:19:45,394 INFO L225 Difference]: With dead ends: 72082 [2018-07-21 17:19:45,394 INFO L226 Difference]: Without dead ends: 46191 [2018-07-21 17:19:45,473 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 17:19:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46191 states. [2018-07-21 17:19:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46191 to 46037. [2018-07-21 17:19:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46037 states. [2018-07-21 17:19:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46037 states to 46037 states and 72074 transitions. [2018-07-21 17:19:47,000 INFO L78 Accepts]: Start accepts. Automaton has 46037 states and 72074 transitions. Word has length 272 [2018-07-21 17:19:47,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 17:19:47,001 INFO L471 AbstractCegarLoop]: Abstraction has 46037 states and 72074 transitions. [2018-07-21 17:19:47,001 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 17:19:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 46037 states and 72074 transitions. [2018-07-21 17:19:47,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-07-21 17:19:47,034 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 17:19:47,035 INFO L358 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 17:19:47,035 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 17:19:47,035 INFO L82 PathProgramCache]: Analyzing trace with hash 958447064, now seen corresponding path program 1 times [2018-07-21 17:19:47,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 17:19:47,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:19:47,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 17:19:47,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 17:19:47,037 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 17:19:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 17:19:47,924 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-21 17:19:48,150 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-21 17:19:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 207 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 17:19:48,523 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 17:19:48,523 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 17:19:48,524 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 284 with the following transitions: [2018-07-21 17:19:48,526 INFO L201 CegarAbsIntRunner]: [0], [1], [1453], [1457], [1463], [1467], [1469], [2652], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3099], [3107], [3115], [3123], [3127], [3129], [3132], [3140], [3145], [3149], [3153], [3157], [3161], [3172], [3176], [3180], [3184], [3188], [3192], [3203], [3207], [3211], [3215], [3219], [3223], [3227], [3231], [3242], [3245], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3357], [3368], [3379], [3382], [3387], [3389], [4262], [4265], [4266], [4267], [4269], [4270] [2018-07-21 17:19:48,619 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 17:19:48,619 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 17:20:04,322 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 17:20:04,324 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 17:20:04,333 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 17:20:16,672 INFO L232 lantSequenceWeakener]: Weakened 273 states. On average, predicates are now at 71.64% of their original sizes. [2018-07-21 17:20:16,672 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 17:20:17,655 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 17:20:17,656 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 17:20:17,656 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2018-07-21 17:20:17,657 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 17:20:17,657 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 17:20:17,658 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 17:20:17,658 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 17:20:17,658 INFO L87 Difference]: Start difference. First operand 46037 states and 72074 transitions. Second operand 8 states. [2018-07-21 17:20:33,360 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 17:21:27,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 17:21:27,517 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 17:21:27,523 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 17:21:27,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:21:27 BoogieIcfgContainer [2018-07-21 17:21:27,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 17:21:27,526 INFO L168 Benchmark]: Toolchain (without parser) took 196767.89 ms. Allocated memory was 308.8 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 236.3 MB in the beginning and 495.3 MB in the end (delta: -259.0 MB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-07-21 17:21:27,527 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 308.8 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 17:21:27,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3351.39 ms. Allocated memory was 308.8 MB in the beginning and 371.2 MB in the end (delta: 62.4 MB). Free memory was 236.3 MB in the beginning and 172.6 MB in the end (delta: 63.8 MB). Peak memory consumption was 126.1 MB. Max. memory is 5.3 GB. [2018-07-21 17:21:27,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 449.64 ms. Allocated memory was 371.2 MB in the beginning and 392.7 MB in the end (delta: 21.5 MB). Free memory was 172.6 MB in the beginning and 257.4 MB in the end (delta: -84.9 MB). Peak memory consumption was 70.2 MB. Max. memory is 5.3 GB. [2018-07-21 17:21:27,529 INFO L168 Benchmark]: Boogie Preprocessor took 1537.05 ms. Allocated memory was 392.7 MB in the beginning and 658.0 MB in the end (delta: 265.3 MB). Free memory was 257.4 MB in the beginning and 516.4 MB in the end (delta: -259.0 MB). Peak memory consumption was 94.7 MB. Max. memory is 5.3 GB. [2018-07-21 17:21:27,532 INFO L168 Benchmark]: RCFGBuilder took 11843.97 ms. Allocated memory was 658.0 MB in the beginning and 885.5 MB in the end (delta: 227.5 MB). Free memory was 516.4 MB in the beginning and 543.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 318.7 MB. Max. memory is 5.3 GB. [2018-07-21 17:21:27,532 INFO L168 Benchmark]: TraceAbstraction took 179568.47 ms. Allocated memory was 885.5 MB in the beginning and 2.5 GB in the end (delta: 1.6 GB). Free memory was 543.9 MB in the beginning and 495.3 MB in the end (delta: 48.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-07-21 17:21:27,537 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 308.8 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3351.39 ms. Allocated memory was 308.8 MB in the beginning and 371.2 MB in the end (delta: 62.4 MB). Free memory was 236.3 MB in the beginning and 172.6 MB in the end (delta: 63.8 MB). Peak memory consumption was 126.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 449.64 ms. Allocated memory was 371.2 MB in the beginning and 392.7 MB in the end (delta: 21.5 MB). Free memory was 172.6 MB in the beginning and 257.4 MB in the end (delta: -84.9 MB). Peak memory consumption was 70.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1537.05 ms. Allocated memory was 392.7 MB in the beginning and 658.0 MB in the end (delta: 265.3 MB). Free memory was 257.4 MB in the beginning and 516.4 MB in the end (delta: -259.0 MB). Peak memory consumption was 94.7 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11843.97 ms. Allocated memory was 658.0 MB in the beginning and 885.5 MB in the end (delta: 227.5 MB). Free memory was 516.4 MB in the beginning and 543.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 318.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 179568.47 ms. Allocated memory was 885.5 MB in the beginning and 2.5 GB in the end (delta: 1.6 GB). Free memory was 543.9 MB in the beginning and 495.3 MB in the end (delta: 48.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 207]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 207). Cancelled while BasicCegarLoop was constructing difference of abstraction (46037states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (1679 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 179.4s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 142.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1945 SDtfs, 17907 SDslu, 2784 SDs, 0 SdLazy, 30018 SolverSat, 7497 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 115.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 328 GetRequests, 290 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46037occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9967048554282594 AbsIntWeakeningRatio, 0.10638297872340426 AbsIntAvgWeakeningVarsNumRemoved, 21.52127659574468 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 586 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1145 NumberOfCodeBlocks, 1145 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1139 ConstructedInterpolants, 0 QuantifiedInterpolants, 1386311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 467/480 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label42_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_17-21-27-558.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label42_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_17-21-27-558.csv Completed graceful shutdown