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_label40_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 03:25:20,639 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 03:25:20,641 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 03:25:20,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 03:25:20,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 03:25:20,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 03:25:20,655 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 03:25:20,656 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 03:25:20,658 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 03:25:20,659 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 03:25:20,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 03:25:20,660 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 03:25:20,660 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 03:25:20,661 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 03:25:20,663 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 03:25:20,664 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 03:25:20,665 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 03:25:20,666 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 03:25:20,675 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 03:25:20,676 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 03:25:20,677 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 03:25:20,679 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 03:25:20,681 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 03:25:20,687 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 03:25:20,687 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 03:25:20,688 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 03:25:20,688 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 03:25:20,689 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 03:25:20,707 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 03:25:20,708 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 03:25:20,708 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 03:25:20,709 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 03:25:20,709 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 03:25:20,709 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 03:25:20,709 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 03:25:20,709 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 03:25:20,710 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 03:25:20,710 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 03:25:20,710 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 03:25:20,710 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 03:25:20,712 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 03:25:20,712 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 03:25:20,713 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 03:25:20,713 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 03:25:20,713 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 03:25:20,713 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 03:25:20,713 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 03:25:20,713 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 03:25:20,714 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 03:25:20,714 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 03:25:20,714 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 03:25:20,714 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 03:25:20,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 03:25:20,715 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 03:25:20,715 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 03:25:20,715 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 03:25:20,715 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 03:25:20,715 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 03:25:20,716 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 03:25:20,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 03:25:20,718 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 03:25:20,718 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 03:25:20,718 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 03:25:20,770 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 03:25:20,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 03:25:20,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 03:25:20,800 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 03:25:20,800 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 03:25:20,802 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-07-21 03:25:21,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8f82fa6fc/a7a94210dfc14728ad90cbf12749aded/FLAG4df685e88 [2018-07-21 03:25:21,737 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 03:25:21,740 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-07-21 03:25:21,795 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8f82fa6fc/a7a94210dfc14728ad90cbf12749aded/FLAG4df685e88 [2018-07-21 03:25:21,815 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8f82fa6fc/a7a94210dfc14728ad90cbf12749aded [2018-07-21 03:25:21,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 03:25:21,834 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 03:25:21,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 03:25:21,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 03:25:21,845 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 03:25:21,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:25:21" (1/1) ... [2018-07-21 03:25:21,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5916e1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:21, skipping insertion in model container [2018-07-21 03:25:21,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:25:21" (1/1) ... [2018-07-21 03:25:22,306 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 03:25:23,586 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:25:23,605 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 03:25:24,558 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:25:24,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24 WrapperNode [2018-07-21 03:25:24,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 03:25:24,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 03:25:24,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 03:25:24,960 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 03:25:24,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:25,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:25,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 03:25:25,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 03:25:25,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 03:25:25,520 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 03:25:26,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:26,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:26,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:26,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:26,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:26,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:26,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (1/1) ... [2018-07-21 03:25:26,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 03:25:26,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 03:25:26,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 03:25:26,684 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 03:25:26,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (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 03:25:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 03:25:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 03:25:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 03:25:26,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 03:25:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 03:25:26,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 03:25:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 03:25:26,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 03:25:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 03:25:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 03:25:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 03:25:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 03:25:26,759 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 [2018-07-21 03:25:26,759 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 [2018-07-21 03:25:38,381 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 03:25:38,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:25:38 BoogieIcfgContainer [2018-07-21 03:25:38,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 03:25:38,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 03:25:38,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 03:25:38,386 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 03:25:38,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:25:21" (1/3) ... [2018-07-21 03:25:38,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c52c1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:25:38, skipping insertion in model container [2018-07-21 03:25:38,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:25:24" (2/3) ... [2018-07-21 03:25:38,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c52c1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:25:38, skipping insertion in model container [2018-07-21 03:25:38,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:25:38" (3/3) ... [2018-07-21 03:25:38,390 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label40_false-unreach-call.c [2018-07-21 03:25:38,399 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 03:25:38,408 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 03:25:38,480 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 03:25:38,481 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 03:25:38,481 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 03:25:38,481 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 03:25:38,481 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 03:25:38,481 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 03:25:38,482 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 03:25:38,482 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 03:25:38,483 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 03:25:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-21 03:25:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-21 03:25:38,537 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:25:38,538 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] [2018-07-21 03:25:38,538 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:25:38,546 INFO L82 PathProgramCache]: Analyzing trace with hash -730475207, now seen corresponding path program 1 times [2018-07-21 03:25:38,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:25:38,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:25:38,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:25:38,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:25:38,604 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:25:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:25:39,047 WARN L169 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 03:25:39,174 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 03:25:39,176 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:25:39,176 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 03:25:39,177 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:25:39,187 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 03:25:39,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 03:25:39,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 03:25:39,216 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-21 03:25:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:25:46,536 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-07-21 03:25:46,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 03:25:46,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-07-21 03:25:46,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:25:46,575 INFO L225 Difference]: With dead ends: 3097 [2018-07-21 03:25:46,576 INFO L226 Difference]: Without dead ends: 1975 [2018-07-21 03:25:46,591 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 [2018-07-21 03:25:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-07-21 03:25:46,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-07-21 03:25:46,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-07-21 03:25:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-07-21 03:25:46,792 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 35 [2018-07-21 03:25:46,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:25:46,794 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-07-21 03:25:46,795 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 03:25:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-07-21 03:25:46,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-21 03:25:46,802 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:25:46,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:46,803 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:25:46,804 INFO L82 PathProgramCache]: Analyzing trace with hash 597085608, now seen corresponding path program 1 times [2018-07-21 03:25:46,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:25:46,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:25:46,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:25:46,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:25:46,806 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:25:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:25:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:25:47,193 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:25:47,193 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 03:25:47,193 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:25:47,197 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 03:25:47,198 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 03:25:47,198 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 03:25:47,198 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-07-21 03:26:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:26:04,876 INFO L93 Difference]: Finished difference Result 5737 states and 9691 transitions. [2018-07-21 03:26:04,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:26:04,879 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-07-21 03:26:04,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:26:04,912 INFO L225 Difference]: With dead ends: 5737 [2018-07-21 03:26:04,912 INFO L226 Difference]: Without dead ends: 3769 [2018-07-21 03:26:04,920 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 03:26:04,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2018-07-21 03:26:05,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3685. [2018-07-21 03:26:05,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3685 states. [2018-07-21 03:26:05,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5659 transitions. [2018-07-21 03:26:05,088 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5659 transitions. Word has length 111 [2018-07-21 03:26:05,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:26:05,089 INFO L471 AbstractCegarLoop]: Abstraction has 3685 states and 5659 transitions. [2018-07-21 03:26:05,089 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 03:26:05,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5659 transitions. [2018-07-21 03:26:05,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-21 03:26:05,101 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:26:05,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:26:05,105 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:26:05,105 INFO L82 PathProgramCache]: Analyzing trace with hash -2112200316, now seen corresponding path program 1 times [2018-07-21 03:26:05,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:26:05,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:26:05,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:26:05,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:26:05,107 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:26:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:26:05,382 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:26:05,382 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:26:05,383 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 03:26:05,383 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:26:05,383 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 03:26:05,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 03:26:05,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 03:26:05,385 INFO L87 Difference]: Start difference. First operand 3685 states and 5659 transitions. Second operand 5 states. [2018-07-21 03:26:20,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:26:20,839 INFO L93 Difference]: Finished difference Result 12383 states and 19152 transitions. [2018-07-21 03:26:20,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:26:20,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-07-21 03:26:20,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:26:20,891 INFO L225 Difference]: With dead ends: 12383 [2018-07-21 03:26:20,892 INFO L226 Difference]: Without dead ends: 8704 [2018-07-21 03:26:20,910 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 03:26:20,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2018-07-21 03:26:21,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 8667. [2018-07-21 03:26:21,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8667 states. [2018-07-21 03:26:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8667 states to 8667 states and 12395 transitions. [2018-07-21 03:26:21,197 INFO L78 Accepts]: Start accepts. Automaton has 8667 states and 12395 transitions. Word has length 125 [2018-07-21 03:26:21,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:26:21,199 INFO L471 AbstractCegarLoop]: Abstraction has 8667 states and 12395 transitions. [2018-07-21 03:26:21,199 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 03:26:21,199 INFO L276 IsEmpty]: Start isEmpty. Operand 8667 states and 12395 transitions. [2018-07-21 03:26:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-21 03:26:21,208 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:26:21,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:26:21,209 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:26:21,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1713789860, now seen corresponding path program 1 times [2018-07-21 03:26:21,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:26:21,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:26:21,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:26:21,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:26:21,211 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:26:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:26:21,541 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 03:26:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:26:21,726 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:26:21,726 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 03:26:21,727 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:26:21,727 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 03:26:21,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 03:26:21,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 03:26:21,728 INFO L87 Difference]: Start difference. First operand 8667 states and 12395 transitions. Second operand 6 states. [2018-07-21 03:26:35,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:26:35,267 INFO L93 Difference]: Finished difference Result 29367 states and 44896 transitions. [2018-07-21 03:26:35,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:26:35,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-07-21 03:26:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:26:35,384 INFO L225 Difference]: With dead ends: 29367 [2018-07-21 03:26:35,384 INFO L226 Difference]: Without dead ends: 20706 [2018-07-21 03:26:35,432 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 03:26:35,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20706 states. [2018-07-21 03:26:35,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20706 to 20492. [2018-07-21 03:26:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20492 states. [2018-07-21 03:26:36,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20492 states to 20492 states and 28769 transitions. [2018-07-21 03:26:36,055 INFO L78 Accepts]: Start accepts. Automaton has 20492 states and 28769 transitions. Word has length 141 [2018-07-21 03:26:36,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:26:36,056 INFO L471 AbstractCegarLoop]: Abstraction has 20492 states and 28769 transitions. [2018-07-21 03:26:36,056 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 03:26:36,056 INFO L276 IsEmpty]: Start isEmpty. Operand 20492 states and 28769 transitions. [2018-07-21 03:26:36,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-21 03:26:36,060 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:26:36,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:26:36,061 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:26:36,062 INFO L82 PathProgramCache]: Analyzing trace with hash 525695720, now seen corresponding path program 1 times [2018-07-21 03:26:36,062 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:26:36,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:26:36,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:26:36,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:26:36,063 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:26:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:26:36,368 WARN L169 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 03:26:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:26:36,729 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:26:36,729 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 03:26:36,729 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:26:36,730 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 03:26:36,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 03:26:36,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 03:26:36,730 INFO L87 Difference]: Start difference. First operand 20492 states and 28769 transitions. Second operand 6 states. [2018-07-21 03:26:47,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:26:47,891 INFO L93 Difference]: Finished difference Result 53241 states and 79547 transitions. [2018-07-21 03:26:47,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 03:26:47,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-07-21 03:26:47,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:26:48,046 INFO L225 Difference]: With dead ends: 53241 [2018-07-21 03:26:48,046 INFO L226 Difference]: Without dead ends: 32755 [2018-07-21 03:26:48,110 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 03:26:48,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32755 states. [2018-07-21 03:26:48,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32755 to 32529. [2018-07-21 03:26:48,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32529 states. [2018-07-21 03:26:48,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32529 states to 32529 states and 44881 transitions. [2018-07-21 03:26:48,950 INFO L78 Accepts]: Start accepts. Automaton has 32529 states and 44881 transitions. Word has length 143 [2018-07-21 03:26:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:26:48,952 INFO L471 AbstractCegarLoop]: Abstraction has 32529 states and 44881 transitions. [2018-07-21 03:26:48,952 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 03:26:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 32529 states and 44881 transitions. [2018-07-21 03:26:48,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-21 03:26:48,955 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:26:48,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:26:48,955 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:26:48,955 INFO L82 PathProgramCache]: Analyzing trace with hash -2122568840, now seen corresponding path program 1 times [2018-07-21 03:26:48,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:26:48,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:26:48,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:26:48,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:26:48,959 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:26:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:26:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:26:49,715 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:26:49,715 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 03:26:49,716 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-07-21 03:26:49,719 INFO L201 CegarAbsIntRunner]: [0], [1], [2631], [2635], [2641], [2645], [2647], [2652], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3124], [3132], [3140], [3145], [3149], [3153], [3157], [3161], [3172], [3176], [3180], [3184], [3188], [3192], [3203], [3207], [3211], [3215], [3219], [3223], [3227], [3231], [3242], [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], [3356], [4262], [4265], [4266], [4267], [4271], [4272] [2018-07-21 03:26:49,827 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 03:26:49,827 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 03:27:03,936 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 03:27:04,206 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 03:27:04,208 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 03:27:04,259 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 03:27:11,538 INFO L232 lantSequenceWeakener]: Weakened 146 states. On average, predicates are now at 71.25% of their original sizes. [2018-07-21 03:27:11,539 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 03:27:12,602 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 03:27:12,603 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 03:27:12,603 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-07-21 03:27:12,603 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:27:12,604 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 03:27:12,604 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 03:27:12,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 03:27:12,604 INFO L87 Difference]: Start difference. First operand 32529 states and 44881 transitions. Second operand 8 states. Received shutdown request... [2018-07-21 03:28:47,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:28:47,594 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 03:28:47,600 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 03:28:47,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:28:47 BoogieIcfgContainer [2018-07-21 03:28:47,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 03:28:47,601 INFO L168 Benchmark]: Toolchain (without parser) took 205772.81 ms. Allocated memory was 309.9 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 239.5 MB in the beginning and 1.2 GB in the end (delta: -985.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-07-21 03:28:47,602 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 309.9 MB. Free memory is still 274.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 03:28:47,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3120.41 ms. Allocated memory was 309.9 MB in the beginning and 398.5 MB in the end (delta: 88.6 MB). Free memory was 237.5 MB in the beginning and 205.6 MB in the end (delta: 31.8 MB). Peak memory consumption was 120.4 MB. Max. memory is 5.3 GB. [2018-07-21 03:28:47,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 560.32 ms. Allocated memory is still 398.5 MB. Free memory was 205.6 MB in the beginning and 275.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 114.2 MB. Max. memory is 5.3 GB. [2018-07-21 03:28:47,604 INFO L168 Benchmark]: Boogie Preprocessor took 1164.04 ms. Allocated memory was 398.5 MB in the beginning and 604.0 MB in the end (delta: 205.5 MB). Free memory was 275.4 MB in the beginning and 440.8 MB in the end (delta: -165.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 5.3 GB. [2018-07-21 03:28:47,605 INFO L168 Benchmark]: RCFGBuilder took 11697.47 ms. Allocated memory was 604.0 MB in the beginning and 978.8 MB in the end (delta: 374.9 MB). Free memory was 440.8 MB in the beginning and 675.0 MB in the end (delta: -234.2 MB). Peak memory consumption was 335.0 MB. Max. memory is 5.3 GB. [2018-07-21 03:28:47,605 INFO L168 Benchmark]: TraceAbstraction took 189218.04 ms. Allocated memory was 978.8 MB in the beginning and 2.6 GB in the end (delta: 1.7 GB). Free memory was 675.0 MB in the beginning and 1.2 GB in the end (delta: -550.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. [2018-07-21 03:28:47,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 309.9 MB. Free memory is still 274.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3120.41 ms. Allocated memory was 309.9 MB in the beginning and 398.5 MB in the end (delta: 88.6 MB). Free memory was 237.5 MB in the beginning and 205.6 MB in the end (delta: 31.8 MB). Peak memory consumption was 120.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 560.32 ms. Allocated memory is still 398.5 MB. Free memory was 205.6 MB in the beginning and 275.4 MB in the end (delta: -69.8 MB). Peak memory consumption was 114.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1164.04 ms. Allocated memory was 398.5 MB in the beginning and 604.0 MB in the end (delta: 205.5 MB). Free memory was 275.4 MB in the beginning and 440.8 MB in the end (delta: -165.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11697.47 ms. Allocated memory was 604.0 MB in the beginning and 978.8 MB in the end (delta: 374.9 MB). Free memory was 440.8 MB in the beginning and 675.0 MB in the end (delta: -234.2 MB). Peak memory consumption was 335.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 189218.04 ms. Allocated memory was 978.8 MB in the beginning and 2.6 GB in the end (delta: 1.7 GB). Free memory was 675.0 MB in the beginning and 1.2 GB in the end (delta: -550.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 96). Cancelled while BasicCegarLoop was constructing difference of abstraction (32529states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (2474 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 189.1s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 160.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2675 SDtfs, 19753 SDslu, 2784 SDs, 0 SdLazy, 29295 SolverSat, 8095 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 128.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 196 GetRequests, 157 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32529occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9945846153846153 AbsIntWeakeningRatio, 0.14 AbsIntAvgWeakeningVarsNumRemoved, 38.94 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 562 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 706 NumberOfCodeBlocks, 706 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 700 ConstructedInterpolants, 0 QuantifiedInterpolants, 383494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 116/140 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_label40_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_03-28-47-627.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label40_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_03-28-47-627.csv Completed graceful shutdown