java -Xmx8000000000 -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 csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label36_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:30:58,084 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:30:58,086 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:30:58,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:30:58,099 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:30:58,100 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:30:58,102 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:30:58,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:30:58,106 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:30:58,107 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:30:58,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:30:58,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:30:58,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:30:58,110 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:30:58,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:30:58,112 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:30:58,113 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:30:58,115 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:30:58,117 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:30:58,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:30:58,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:30:58,121 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:30:58,124 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:30:58,125 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:30:58,125 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:30:58,126 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:30:58,127 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:30:58,128 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:30:58,129 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:30:58,130 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:30:58,131 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:30:58,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:30:58,132 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:30:58,132 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:30:58,133 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:30:58,134 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:30:58,135 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 19:30:58,152 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:30:58,153 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:30:58,154 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:30:58,154 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:30:58,154 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:30:58,154 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:30:58,155 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:30:58,155 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:30:58,155 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:30:58,155 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:30:58,155 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:30:58,156 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:30:58,157 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:30:58,157 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:30:58,157 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:30:58,157 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:30:58,157 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:30:58,158 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:30:58,158 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:30:58,158 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:30:58,158 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:30:58,158 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:30:58,159 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:30:58,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:30:58,159 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:30:58,159 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:30:58,159 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:30:58,160 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:30:58,160 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:30:58,160 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:30:58,160 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:30:58,160 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:30:58,161 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:30:58,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:30:58,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:30:58,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:30:58,238 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:30:58,239 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:30:58,239 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label36_false-unreach-call.c [2018-07-23 19:30:58,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31fd38ed/08c0dde8e8524e0cadbeb8205bc85db0/FLAG4ae166658 [2018-07-23 19:30:59,124 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:30:59,126 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label36_false-unreach-call.c [2018-07-23 19:30:59,170 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31fd38ed/08c0dde8e8524e0cadbeb8205bc85db0/FLAG4ae166658 [2018-07-23 19:30:59,193 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31fd38ed/08c0dde8e8524e0cadbeb8205bc85db0 [2018-07-23 19:30:59,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:30:59,212 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:30:59,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:30:59,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:30:59,221 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:30:59,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:30:59" (1/1) ... [2018-07-23 19:30:59,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e68d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:30:59, skipping insertion in model container [2018-07-23 19:30:59,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:30:59" (1/1) ... [2018-07-23 19:30:59,635 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:31:00,833 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:31:00,851 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:31:01,634 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:31:01,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01 WrapperNode [2018-07-23 19:31:01,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:31:01,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:31:01,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:31:01,990 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:31:01,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:02,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:02,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:31:02,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:31:02,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:31:02,361 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:31:03,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:03,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:03,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:03,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:03,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:03,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:03,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... [2018-07-23 19:31:03,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:31:03,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:31:03,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:31:03,687 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:31:03,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:31:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:31:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:31:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-23 19:31:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-23 19:31:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:31:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:31:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:31:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:31:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:31:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:31:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-23 19:31:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-23 19:31:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:31:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:31:17,578 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:31:17,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:31:17 BoogieIcfgContainer [2018-07-23 19:31:17,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:31:17,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:31:17,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:31:17,583 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:31:17,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:30:59" (1/3) ... [2018-07-23 19:31:17,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6b68b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:31:17, skipping insertion in model container [2018-07-23 19:31:17,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:01" (2/3) ... [2018-07-23 19:31:17,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6b68b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:31:17, skipping insertion in model container [2018-07-23 19:31:17,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:31:17" (3/3) ... [2018-07-23 19:31:17,587 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label36_false-unreach-call.c [2018-07-23 19:31:17,596 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:31:17,607 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:31:17,668 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:31:17,669 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:31:17,669 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:31:17,669 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:31:17,669 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:31:17,670 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:31:17,670 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:31:17,670 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:31:17,670 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:31:17,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-23 19:31:17,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 19:31:17,726 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:31:17,727 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:31:17,727 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:31:17,733 INFO L82 PathProgramCache]: Analyzing trace with hash 79784724, now seen corresponding path program 1 times [2018-07-23 19:31:17,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:31:17,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:17,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:31:17,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:17,791 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:31:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:31:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:31:18,153 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:31:18,154 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:31:18,154 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:31:18,160 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:31:18,176 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:31:18,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:31:18,180 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-07-23 19:31:32,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:31:32,386 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-07-23 19:31:32,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:31:32,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-07-23 19:31:32,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:31:32,446 INFO L225 Difference]: With dead ends: 3968 [2018-07-23 19:31:32,446 INFO L226 Difference]: Without dead ends: 2842 [2018-07-23 19:31:32,463 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:31:32,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-07-23 19:31:32,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-07-23 19:31:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-07-23 19:31:32,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-07-23 19:31:32,654 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 18 [2018-07-23 19:31:32,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:31:32,655 INFO L471 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-07-23 19:31:32,655 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:31:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-07-23 19:31:32,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-23 19:31:32,660 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:31:32,660 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:31:32,660 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:31:32,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1013003280, now seen corresponding path program 1 times [2018-07-23 19:31:32,661 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:31:32,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:32,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:31:32,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:32,663 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:31:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:31:32,963 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:31:32,963 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:31:32,963 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 19:31:32,964 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:31:32,965 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 19:31:32,966 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 19:31:32,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 19:31:32,966 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 5 states. [2018-07-23 19:31:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:31:46,994 INFO L93 Difference]: Finished difference Result 5673 states and 10081 transitions. [2018-07-23 19:31:46,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:31:46,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-07-23 19:31:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:31:47,021 INFO L225 Difference]: With dead ends: 5673 [2018-07-23 19:31:47,021 INFO L226 Difference]: Without dead ends: 3698 [2018-07-23 19:31:47,029 INFO L573 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 [2018-07-23 19:31:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2018-07-23 19:31:47,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3687. [2018-07-23 19:31:47,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3687 states. [2018-07-23 19:31:47,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5870 transitions. [2018-07-23 19:31:47,134 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5870 transitions. Word has length 88 [2018-07-23 19:31:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:31:47,135 INFO L471 AbstractCegarLoop]: Abstraction has 3687 states and 5870 transitions. [2018-07-23 19:31:47,135 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 19:31:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5870 transitions. [2018-07-23 19:31:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 19:31:47,138 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:31:47,139 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:31:47,139 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:31:47,139 INFO L82 PathProgramCache]: Analyzing trace with hash 225238924, now seen corresponding path program 1 times [2018-07-23 19:31:47,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:31:47,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:47,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:31:47,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:47,141 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:31:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:31:47,330 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:31:47,330 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:31:47,330 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 19:31:47,331 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:31:47,331 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 19:31:47,331 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 19:31:47,332 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 19:31:47,332 INFO L87 Difference]: Start difference. First operand 3687 states and 5870 transitions. Second operand 5 states. [2018-07-23 19:32:02,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:32:02,265 INFO L93 Difference]: Finished difference Result 10963 states and 17865 transitions. [2018-07-23 19:32:02,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:32:02,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2018-07-23 19:32:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:32:02,306 INFO L225 Difference]: With dead ends: 10963 [2018-07-23 19:32:02,307 INFO L226 Difference]: Without dead ends: 7282 [2018-07-23 19:32:02,321 INFO L573 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 [2018-07-23 19:32:02,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7282 states. [2018-07-23 19:32:02,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7282 to 7175. [2018-07-23 19:32:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7175 states. [2018-07-23 19:32:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 10520 transitions. [2018-07-23 19:32:02,531 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 10520 transitions. Word has length 90 [2018-07-23 19:32:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:32:02,532 INFO L471 AbstractCegarLoop]: Abstraction has 7175 states and 10520 transitions. [2018-07-23 19:32:02,532 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 19:32:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 10520 transitions. [2018-07-23 19:32:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 19:32:02,541 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:32:02,542 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:32:02,542 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:32:02,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1101187348, now seen corresponding path program 1 times [2018-07-23 19:32:02,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:32:02,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:02,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:32:02,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:02,545 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:32:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:32:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:32:02,825 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:32:02,825 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:32:02,825 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:32:02,826 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:32:02,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:32:02,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:32:02,827 INFO L87 Difference]: Start difference. First operand 7175 states and 10520 transitions. Second operand 4 states. [2018-07-23 19:32:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:32:13,872 INFO L93 Difference]: Finished difference Result 27638 states and 43133 transitions. [2018-07-23 19:32:13,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:32:13,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2018-07-23 19:32:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:32:13,981 INFO L225 Difference]: With dead ends: 27638 [2018-07-23 19:32:13,981 INFO L226 Difference]: Without dead ends: 20469 [2018-07-23 19:32:14,027 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:32:14,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20469 states. [2018-07-23 19:32:14,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20469 to 20431. [2018-07-23 19:32:14,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20431 states. [2018-07-23 19:32:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20431 states to 20431 states and 28917 transitions. [2018-07-23 19:32:14,532 INFO L78 Accepts]: Start accepts. Automaton has 20431 states and 28917 transitions. Word has length 134 [2018-07-23 19:32:14,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:32:14,533 INFO L471 AbstractCegarLoop]: Abstraction has 20431 states and 28917 transitions. [2018-07-23 19:32:14,533 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:32:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand 20431 states and 28917 transitions. [2018-07-23 19:32:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-07-23 19:32:14,542 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:32:14,542 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:32:14,542 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:32:14,542 INFO L82 PathProgramCache]: Analyzing trace with hash -216075988, now seen corresponding path program 1 times [2018-07-23 19:32:14,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:32:14,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:14,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:32:14,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:14,544 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:32:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:32:14,858 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:32:14,858 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:32:14,858 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:32:14,858 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:32:14,859 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:32:14,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:32:14,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:32:14,860 INFO L87 Difference]: Start difference. First operand 20431 states and 28917 transitions. Second operand 4 states. [2018-07-23 19:32:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:32:24,623 INFO L93 Difference]: Finished difference Result 44900 states and 63088 transitions. [2018-07-23 19:32:24,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:32:24,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 213 [2018-07-23 19:32:24,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:32:24,723 INFO L225 Difference]: With dead ends: 44900 [2018-07-23 19:32:24,723 INFO L226 Difference]: Without dead ends: 24475 [2018-07-23 19:32:24,802 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:32:24,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24475 states. [2018-07-23 19:32:25,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24475 to 24474. [2018-07-23 19:32:25,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24474 states. [2018-07-23 19:32:25,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24474 states to 24474 states and 30639 transitions. [2018-07-23 19:32:25,337 INFO L78 Accepts]: Start accepts. Automaton has 24474 states and 30639 transitions. Word has length 213 [2018-07-23 19:32:25,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:32:25,338 INFO L471 AbstractCegarLoop]: Abstraction has 24474 states and 30639 transitions. [2018-07-23 19:32:25,338 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:32:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand 24474 states and 30639 transitions. [2018-07-23 19:32:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-07-23 19:32:25,351 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:32:25,352 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:32:25,352 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:32:25,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1924888282, now seen corresponding path program 1 times [2018-07-23 19:32:25,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:32:25,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:25,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:32:25,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:25,354 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:32:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:32:25,716 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:32:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 106 proven. 69 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-07-23 19:32:26,326 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:32:26,326 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:32:26,327 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 321 with the following transitions: [2018-07-23 19:32:26,330 INFO L201 CegarAbsIntRunner]: [0], [1], [303], [307], [313], [317], [319], [2652], [2659], [2667], [2675], [2683], [2691], [2695], [2697], [2700], [2708], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [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], [3144], [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], [3321], [3326], [3328], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3357], [3368], [3379], [3382], [3387], [3389], [4262], [4263], [4264], [4265], [4267], [4268] [2018-07-23 19:32:26,398 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:32:26,399 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:32:38,423 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:32:38,426 INFO L272 AbstractInterpreter]: Visited 125 different actions 125 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-23 19:32:38,458 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:32:48,930 INFO L232 lantSequenceWeakener]: Weakened 305 states. On average, predicates are now at 70.83% of their original sizes. [2018-07-23 19:32:48,931 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:32:49,488 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:32:49,489 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:32:49,489 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-07-23 19:32:49,490 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:32:49,490 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 19:32:49,490 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 19:32:49,491 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:32:49,491 INFO L87 Difference]: Start difference. First operand 24474 states and 30639 transitions. Second operand 8 states. [2018-07-23 19:33:23,833 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 19:34:42,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:34:42,108 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:34:42,113 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:34:42,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:34:42 BoogieIcfgContainer [2018-07-23 19:34:42,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:34:42,115 INFO L168 Benchmark]: Toolchain (without parser) took 222904.33 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -550.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-23 19:34:42,116 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 19:34:42,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2775.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-07-23 19:34:42,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 371.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:34:42,124 INFO L168 Benchmark]: Boogie Preprocessor took 1324.95 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 992.0 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:34:42,125 INFO L168 Benchmark]: RCFGBuilder took 13893.05 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 158.3 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 89.1 MB). Peak memory consumption was 753.8 MB. Max. memory is 7.1 GB. [2018-07-23 19:34:42,126 INFO L168 Benchmark]: TraceAbstraction took 204533.89 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 283.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-07-23 19:34:42,131 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2775.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 371.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1324.95 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 992.0 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13893.05 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 158.3 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 89.1 MB). Peak memory consumption was 753.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204533.89 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 283.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 45). Cancelled while BasicCegarLoop was constructing difference of abstraction (24474states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (5933 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 204.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 177.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3921 SDtfs, 13661 SDslu, 2483 SDs, 0 SdLazy, 24727 SolverSat, 6266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 144.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 355 GetRequests, 328 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24474occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9967205208584516 AbsIntWeakeningRatio, 0.11912225705329153 AbsIntAvgWeakeningVarsNumRemoved, 1009.3918495297805 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 1018 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 863 NumberOfCodeBlocks, 863 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 857 ConstructedInterpolants, 0 QuantifiedInterpolants, 364705 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 257/326 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label36_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-34-42-154.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label36_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-34-42-154.csv Completed graceful shutdown