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/Problem03_label13_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-20 22:36:45,645 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-20 22:36:45,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-20 22:36:45,670 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-20 22:36:45,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-20 22:36:45,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-20 22:36:45,676 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-20 22:36:45,678 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-20 22:36:45,680 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-20 22:36:45,682 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-20 22:36:45,683 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-20 22:36:45,684 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-20 22:36:45,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-20 22:36:45,685 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-20 22:36:45,690 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-20 22:36:45,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-20 22:36:45,692 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-20 22:36:45,706 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-20 22:36:45,708 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-20 22:36:45,709 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-20 22:36:45,710 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-20 22:36:45,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-20 22:36:45,716 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-20 22:36:45,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-20 22:36:45,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-20 22:36:45,729 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-20 22:36:45,730 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-20 22:36:45,730 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-20 22:36:45,758 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-20 22:36:45,759 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-20 22:36:45,759 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-20 22:36:45,760 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-20 22:36:45,760 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-20 22:36:45,760 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-20 22:36:45,760 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-20 22:36:45,760 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-20 22:36:45,761 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-20 22:36:45,761 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-20 22:36:45,761 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-20 22:36:45,761 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-20 22:36:45,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-20 22:36:45,763 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-20 22:36:45,763 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-20 22:36:45,763 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-20 22:36:45,764 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-20 22:36:45,764 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-20 22:36:45,764 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-20 22:36:45,764 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-20 22:36:45,764 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-20 22:36:45,765 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-20 22:36:45,765 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-20 22:36:45,765 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-20 22:36:45,765 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-20 22:36:45,765 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-20 22:36:45,765 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-20 22:36:45,766 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-20 22:36:45,768 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-20 22:36:45,768 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-20 22:36:45,768 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-20 22:36:45,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-20 22:36:45,769 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-20 22:36:45,769 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-20 22:36:45,769 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-20 22:36:45,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-20 22:36:45,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-20 22:36:45,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-20 22:36:45,848 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-20 22:36:45,849 INFO L276 PluginConnector]: CDTParser initialized [2018-07-20 22:36:45,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label13_false-unreach-call.c [2018-07-20 22:36:46,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f97c1f357/94376eb59fae456d8913209c4f77edc8/FLAG61af5bc51 [2018-07-20 22:36:46,673 INFO L276 CDTParser]: Found 1 translation units. [2018-07-20 22:36:46,673 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label13_false-unreach-call.c [2018-07-20 22:36:46,722 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f97c1f357/94376eb59fae456d8913209c4f77edc8/FLAG61af5bc51 [2018-07-20 22:36:46,739 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f97c1f357/94376eb59fae456d8913209c4f77edc8 [2018-07-20 22:36:46,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-20 22:36:46,754 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-20 22:36:46,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-20 22:36:46,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-20 22:36:46,763 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-20 22:36:46,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:36:46" (1/1) ... [2018-07-20 22:36:46,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a812aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:46, skipping insertion in model container [2018-07-20 22:36:46,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:36:46" (1/1) ... [2018-07-20 22:36:47,065 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-20 22:36:47,714 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 22:36:47,740 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-20 22:36:48,124 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 22:36:48,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48 WrapperNode [2018-07-20 22:36:48,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-20 22:36:48,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-20 22:36:48,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-20 22:36:48,206 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-20 22:36:48,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-20 22:36:48,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-20 22:36:48,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-20 22:36:48,388 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-20 22:36:48,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (1/1) ... [2018-07-20 22:36:48,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-20 22:36:48,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-20 22:36:48,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-20 22:36:48,820 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-20 22:36:48,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (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 [2018-07-20 22:36:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-20 22:36:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-20 22:36:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-20 22:36:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-20 22:36:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-20 22:36:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-20 22:36:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-20 22:36:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-20 22:36:54,532 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-20 22:36:54,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:36:54 BoogieIcfgContainer [2018-07-20 22:36:54,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-20 22:36:54,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-20 22:36:54,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-20 22:36:54,537 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-20 22:36:54,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:36:46" (1/3) ... [2018-07-20 22:36:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5299f57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:36:54, skipping insertion in model container [2018-07-20 22:36:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:36:48" (2/3) ... [2018-07-20 22:36:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5299f57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:36:54, skipping insertion in model container [2018-07-20 22:36:54,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:36:54" (3/3) ... [2018-07-20 22:36:54,542 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label13_false-unreach-call.c [2018-07-20 22:36:54,555 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-20 22:36:54,565 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-20 22:36:54,634 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-20 22:36:54,635 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-20 22:36:54,635 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-20 22:36:54,635 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-20 22:36:54,635 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-20 22:36:54,636 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-20 22:36:54,636 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-20 22:36:54,636 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-20 22:36:54,636 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-20 22:36:54,668 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-07-20 22:36:54,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-20 22:36:54,689 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:36:54,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:36:54,691 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:36:54,697 INFO L82 PathProgramCache]: Analyzing trace with hash 868373361, now seen corresponding path program 1 times [2018-07-20 22:36:54,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:36:54,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:36:54,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:36:54,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:36:54,768 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:36:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:36:55,787 WARN L169 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-20 22:36:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:36:55,960 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:36:55,961 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-20 22:36:55,961 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:36:55,965 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-20 22:36:55,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-20 22:36:55,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:36:55,984 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-07-20 22:36:57,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:36:57,648 INFO L93 Difference]: Finished difference Result 838 states and 1479 transitions. [2018-07-20 22:36:57,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-20 22:36:57,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2018-07-20 22:36:57,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:36:57,673 INFO L225 Difference]: With dead ends: 838 [2018-07-20 22:36:57,674 INFO L226 Difference]: Without dead ends: 524 [2018-07-20 22:36:57,681 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:36:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-07-20 22:36:57,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2018-07-20 22:36:57,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-07-20 22:36:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 890 transitions. [2018-07-20 22:36:57,773 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 890 transitions. Word has length 162 [2018-07-20 22:36:57,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:36:57,775 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 890 transitions. [2018-07-20 22:36:57,775 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-20 22:36:57,775 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 890 transitions. [2018-07-20 22:36:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-07-20 22:36:57,785 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:36:57,785 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:36:57,785 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:36:57,786 INFO L82 PathProgramCache]: Analyzing trace with hash -535712744, now seen corresponding path program 1 times [2018-07-20 22:36:57,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:36:57,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:36:57,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:36:57,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:36:57,788 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:36:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:36:58,216 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-20 22:36:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:36:58,447 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:36:58,447 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-20 22:36:58,448 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:36:58,450 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-20 22:36:58,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-20 22:36:58,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-20 22:36:58,451 INFO L87 Difference]: Start difference. First operand 522 states and 890 transitions. Second operand 5 states. [2018-07-20 22:36:59,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:36:59,736 INFO L93 Difference]: Finished difference Result 1561 states and 2692 transitions. [2018-07-20 22:36:59,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-20 22:36:59,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2018-07-20 22:36:59,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:36:59,752 INFO L225 Difference]: With dead ends: 1561 [2018-07-20 22:36:59,752 INFO L226 Difference]: Without dead ends: 1045 [2018-07-20 22:36:59,758 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-20 22:36:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2018-07-20 22:36:59,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1024. [2018-07-20 22:36:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2018-07-20 22:36:59,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1762 transitions. [2018-07-20 22:36:59,853 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1762 transitions. Word has length 172 [2018-07-20 22:36:59,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:36:59,854 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1762 transitions. [2018-07-20 22:36:59,854 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-20 22:36:59,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1762 transitions. [2018-07-20 22:36:59,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-20 22:36:59,860 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:36:59,860 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:36:59,860 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:36:59,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1046915059, now seen corresponding path program 1 times [2018-07-20 22:36:59,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:36:59,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:36:59,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:36:59,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:36:59,862 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:36:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:37:00,267 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:37:00,267 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:37:00,267 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-20 22:37:00,267 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:37:00,270 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-20 22:37:00,270 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-20 22:37:00,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:37:00,271 INFO L87 Difference]: Start difference. First operand 1024 states and 1762 transitions. Second operand 3 states. [2018-07-20 22:37:04,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:37:04,788 INFO L93 Difference]: Finished difference Result 2907 states and 5171 transitions. [2018-07-20 22:37:04,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-20 22:37:04,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2018-07-20 22:37:04,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:37:04,804 INFO L225 Difference]: With dead ends: 2907 [2018-07-20 22:37:04,804 INFO L226 Difference]: Without dead ends: 1889 [2018-07-20 22:37:04,810 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:37:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2018-07-20 22:37:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1867. [2018-07-20 22:37:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1867 states. [2018-07-20 22:37:04,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 3203 transitions. [2018-07-20 22:37:04,901 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 3203 transitions. Word has length 175 [2018-07-20 22:37:04,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:37:04,902 INFO L471 AbstractCegarLoop]: Abstraction has 1867 states and 3203 transitions. [2018-07-20 22:37:04,902 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-20 22:37:04,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 3203 transitions. [2018-07-20 22:37:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-20 22:37:04,914 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:37:04,914 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 22:37:04,914 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:37:04,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1443070100, now seen corresponding path program 1 times [2018-07-20 22:37:04,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:37:04,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:37:04,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:37:04,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:37:04,917 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:37:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:37:05,177 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-20 22:37:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-20 22:37:05,228 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 22:37:05,228 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-20 22:37:05,229 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-07-20 22:37:05,231 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [37], [40], [41], [45], [49], [53], [57], [61], [65], [68], [69], [73], [77], [81], [85], [89], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [164], [168], [172], [183], [187], [191], [195], [199], [203], [207], [211], [215], [226], [230], [234], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [301], [305], [309], [313], [317], [321], [332], [336], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [387], [391], [395], [399], [403], [407], [418], [422], [426], [430], [441], [445], [449], [453], [457], [461], [465], [469], [473], [477], [481], [485], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [544], [548], [552], [556], [560], [564], [575], [579], [583], [594], [598], [609], [613], [617], [621], [625], [629], [633], [637], [648], [659], [670], [674], [678], [682], [686], [690], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [781], [783], [1181], [1182], [1183], [1184], [1186], [1187] [2018-07-20 22:37:05,336 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-20 22:37:05,337 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown