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_label35_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-20 22:44:24,243 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-20 22:44:24,246 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-20 22:44:24,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-20 22:44:24,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-20 22:44:24,266 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-20 22:44:24,269 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-20 22:44:24,272 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-20 22:44:24,275 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-20 22:44:24,277 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-20 22:44:24,277 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-20 22:44:24,278 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-20 22:44:24,279 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-20 22:44:24,281 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-20 22:44:24,283 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-20 22:44:24,283 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-20 22:44:24,287 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-20 22:44:24,289 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-20 22:44:24,302 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-20 22:44:24,304 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-20 22:44:24,305 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-20 22:44:24,307 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-20 22:44:24,309 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-20 22:44:24,330 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 22:44:24,359 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-20 22:44:24,359 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-20 22:44:24,360 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-20 22:44:24,360 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-20 22:44:24,360 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-20 22:44:24,361 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-20 22:44:24,364 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-20 22:44:24,365 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-20 22:44:24,365 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-20 22:44:24,365 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-20 22:44:24,365 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-20 22:44:24,365 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-20 22:44:24,366 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-20 22:44:24,367 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-20 22:44:24,367 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-20 22:44:24,367 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-20 22:44:24,367 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-20 22:44:24,367 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-20 22:44:24,368 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-20 22:44:24,369 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-20 22:44:24,369 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-20 22:44:24,370 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-20 22:44:24,370 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-20 22:44:24,370 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-20 22:44:24,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-20 22:44:24,370 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-20 22:44:24,371 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-20 22:44:24,371 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-20 22:44:24,371 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-20 22:44:24,371 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-20 22:44:24,371 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-20 22:44:24,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-20 22:44:24,372 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-20 22:44:24,372 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-20 22:44:24,372 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-20 22:44:24,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-20 22:44:24,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-20 22:44:24,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-20 22:44:24,454 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-20 22:44:24,454 INFO L276 PluginConnector]: CDTParser initialized [2018-07-20 22:44:24,455 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label35_false-unreach-call.c [2018-07-20 22:44:24,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/bb924afc0/ba9520ff88bc42f687205697a4b9b990/FLAGb7a879b49 [2018-07-20 22:44:25,307 INFO L276 CDTParser]: Found 1 translation units. [2018-07-20 22:44:25,308 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label35_false-unreach-call.c [2018-07-20 22:44:25,358 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/bb924afc0/ba9520ff88bc42f687205697a4b9b990/FLAGb7a879b49 [2018-07-20 22:44:25,381 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/bb924afc0/ba9520ff88bc42f687205697a4b9b990 [2018-07-20 22:44:25,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-20 22:44:25,404 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-20 22:44:25,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-20 22:44:25,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-20 22:44:25,413 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-20 22:44:25,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:25" (1/1) ... [2018-07-20 22:44:25,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11bf91a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:25, skipping insertion in model container [2018-07-20 22:44:25,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:25" (1/1) ... [2018-07-20 22:44:25,725 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-20 22:44:26,313 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 22:44:26,331 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-20 22:44:26,689 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 22:44:26,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26 WrapperNode [2018-07-20 22:44:26,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-20 22:44:26,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-20 22:44:26,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-20 22:44:26,814 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-20 22:44:26,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:26,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:27,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-20 22:44:27,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-20 22:44:27,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-20 22:44:27,011 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-20 22:44:27,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:27,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:27,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:27,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:27,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:27,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:27,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (1/1) ... [2018-07-20 22:44:27,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-20 22:44:27,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-20 22:44:27,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-20 22:44:27,185 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-20 22:44:27,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (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 22:44:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-20 22:44:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-20 22:44:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-20 22:44:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-20 22:44:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-20 22:44:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-20 22:44:27,610 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 22:44:27,610 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 22:44:33,719 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-20 22:44:33,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:33 BoogieIcfgContainer [2018-07-20 22:44:33,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-20 22:44:33,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-20 22:44:33,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-20 22:44:33,734 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-20 22:44:33,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:44:25" (1/3) ... [2018-07-20 22:44:33,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4115cb35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:33, skipping insertion in model container [2018-07-20 22:44:33,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:26" (2/3) ... [2018-07-20 22:44:33,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4115cb35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:33, skipping insertion in model container [2018-07-20 22:44:33,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:33" (3/3) ... [2018-07-20 22:44:33,741 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label35_false-unreach-call.c [2018-07-20 22:44:33,755 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-20 22:44:33,770 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-20 22:44:33,847 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-20 22:44:33,848 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-20 22:44:33,848 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-20 22:44:33,848 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-20 22:44:33,848 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-20 22:44:33,848 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-20 22:44:33,848 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-20 22:44:33,848 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-20 22:44:33,849 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-20 22:44:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-07-20 22:44:33,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-20 22:44:33,919 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:44:33,920 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] [2018-07-20 22:44:33,924 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 22:44:33,930 INFO L82 PathProgramCache]: Analyzing trace with hash 51871593, now seen corresponding path program 1 times [2018-07-20 22:44:33,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:44:33,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:33,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:44:33,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:33,998 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:44:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:44:34,849 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-20 22:44:34,996 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 22:44:34,998 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:44:34,999 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-20 22:44:34,999 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:44:35,003 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-20 22:44:35,020 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-20 22:44:35,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:44:35,024 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-07-20 22:44:37,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:44:37,117 INFO L93 Difference]: Finished difference Result 855 states and 1508 transitions. [2018-07-20 22:44:37,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-20 22:44:37,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2018-07-20 22:44:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:44:37,147 INFO L225 Difference]: With dead ends: 855 [2018-07-20 22:44:37,148 INFO L226 Difference]: Without dead ends: 541 [2018-07-20 22:44:37,157 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 22:44:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2018-07-20 22:44:37,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 527. [2018-07-20 22:44:37,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2018-07-20 22:44:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 901 transitions. [2018-07-20 22:44:37,257 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 901 transitions. Word has length 152 [2018-07-20 22:44:37,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:44:37,258 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 901 transitions. [2018-07-20 22:44:37,258 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-20 22:44:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 901 transitions. [2018-07-20 22:44:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-20 22:44:37,266 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:44:37,266 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] [2018-07-20 22:44:37,267 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 22:44:37,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1118360368, now seen corresponding path program 1 times [2018-07-20 22:44:37,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:44:37,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:37,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:44:37,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:37,270 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:44:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:44:37,537 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 22:44:37,537 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:44:37,541 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-20 22:44:37,541 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:44:37,544 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-20 22:44:37,544 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-20 22:44:37,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-20 22:44:37,545 INFO L87 Difference]: Start difference. First operand 527 states and 901 transitions. Second operand 5 states. [2018-07-20 22:44:38,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:44:38,695 INFO L93 Difference]: Finished difference Result 1571 states and 2720 transitions. [2018-07-20 22:44:38,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-20 22:44:38,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2018-07-20 22:44:38,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:44:38,712 INFO L225 Difference]: With dead ends: 1571 [2018-07-20 22:44:38,712 INFO L226 Difference]: Without dead ends: 1050 [2018-07-20 22:44:38,716 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-20 22:44:38,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2018-07-20 22:44:38,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1031. [2018-07-20 22:44:38,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2018-07-20 22:44:38,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1781 transitions. [2018-07-20 22:44:38,817 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1781 transitions. Word has length 162 [2018-07-20 22:44:38,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:44:38,818 INFO L471 AbstractCegarLoop]: Abstraction has 1031 states and 1781 transitions. [2018-07-20 22:44:38,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-20 22:44:38,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1781 transitions. [2018-07-20 22:44:38,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-07-20 22:44:38,825 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:44:38,826 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-20 22:44:38,826 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 22:44:38,826 INFO L82 PathProgramCache]: Analyzing trace with hash -55098128, now seen corresponding path program 1 times [2018-07-20 22:44:38,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:44:38,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:38,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:44:38,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:38,828 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:44:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:44:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:44:39,069 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:44:39,069 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-20 22:44:39,069 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:44:39,070 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-20 22:44:39,070 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-20 22:44:39,071 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-20 22:44:39,071 INFO L87 Difference]: Start difference. First operand 1031 states and 1781 transitions. Second operand 5 states. [2018-07-20 22:44:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:44:44,411 INFO L93 Difference]: Finished difference Result 2953 states and 5331 transitions. [2018-07-20 22:44:44,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-20 22:44:44,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2018-07-20 22:44:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:44:44,457 INFO L225 Difference]: With dead ends: 2953 [2018-07-20 22:44:44,458 INFO L226 Difference]: Without dead ends: 1928 [2018-07-20 22:44:44,462 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-20 22:44:44,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2018-07-20 22:44:44,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1889. [2018-07-20 22:44:44,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1889 states. [2018-07-20 22:44:44,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 3097 transitions. [2018-07-20 22:44:44,589 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 3097 transitions. Word has length 163 [2018-07-20 22:44:44,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:44:44,589 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 3097 transitions. [2018-07-20 22:44:44,589 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-20 22:44:44,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 3097 transitions. [2018-07-20 22:44:44,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-20 22:44:44,599 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:44:44,599 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] [2018-07-20 22:44:44,599 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 22:44:44,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1947052283, now seen corresponding path program 1 times [2018-07-20 22:44:44,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:44:44,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:44,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:44:44,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:44,601 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:44:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:44:45,013 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 22:44:45,013 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 22:44:45,013 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-20 22:44:45,013 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 22:44:45,014 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-20 22:44:45,014 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-20 22:44:45,014 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:44:45,015 INFO L87 Difference]: Start difference. First operand 1889 states and 3097 transitions. Second operand 3 states. [2018-07-20 22:44:46,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 22:44:46,295 INFO L93 Difference]: Finished difference Result 5470 states and 9291 transitions. [2018-07-20 22:44:46,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-20 22:44:46,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2018-07-20 22:44:46,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 22:44:46,323 INFO L225 Difference]: With dead ends: 5470 [2018-07-20 22:44:46,324 INFO L226 Difference]: Without dead ends: 3587 [2018-07-20 22:44:46,335 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 22:44:46,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2018-07-20 22:44:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 3578. [2018-07-20 22:44:46,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3578 states. [2018-07-20 22:44:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 5704 transitions. [2018-07-20 22:44:46,504 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 5704 transitions. Word has length 165 [2018-07-20 22:44:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 22:44:46,506 INFO L471 AbstractCegarLoop]: Abstraction has 3578 states and 5704 transitions. [2018-07-20 22:44:46,507 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-20 22:44:46,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 5704 transitions. [2018-07-20 22:44:46,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-07-20 22:44:46,521 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 22:44:46,521 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:44:46,521 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-20 22:44:46,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1885246038, now seen corresponding path program 1 times [2018-07-20 22:44:46,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 22:44:46,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:46,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 22:44:46,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 22:44:46,523 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 22:44:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 22:44:47,182 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 22:44:47,183 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 22:44:47,183 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-20 22:44:47,184 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-07-20 22:44:47,186 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [37], [41], [45], [49], [53], [57], [61], [65], [69], [73], [77], [81], [85], [89], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [139], [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], [701], [703], [1181], [1182], [1183], [1184], [1186], [1187] [2018-07-20 22:44:47,281 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-20 22:44:47,281 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