java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 09:26:26,609 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 09:26:26,612 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 09:26:26,624 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 09:26:26,624 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 09:26:26,625 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 09:26:26,626 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 09:26:26,628 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 09:26:26,630 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 09:26:26,631 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 09:26:26,632 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 09:26:26,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 09:26:26,633 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 09:26:26,634 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 09:26:26,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 09:26:26,636 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 09:26:26,637 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 09:26:26,639 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 09:26:26,641 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 09:26:26,642 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 09:26:26,643 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 09:26:26,645 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 09:26:26,647 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 09:26:26,647 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 09:26:26,648 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 09:26:26,649 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 09:26:26,650 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 09:26:26,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 09:26:26,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 09:26:26,653 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 09:26:26,653 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 09:26:26,654 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 09:26:26,654 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 09:26:26,654 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 09:26:26,655 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 09:26:26,656 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 09:26:26,656 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-08-08 09:26:26,671 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 09:26:26,671 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 09:26:26,672 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 09:26:26,672 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 09:26:26,672 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 09:26:26,673 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 09:26:26,673 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 09:26:26,673 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 09:26:26,673 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 09:26:26,674 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-08-08 09:26:26,674 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 09:26:26,674 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 09:26:26,675 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 09:26:26,675 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 09:26:26,675 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 09:26:26,675 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 09:26:26,675 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 09:26:26,676 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 09:26:26,676 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 09:26:26,676 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 09:26:26,676 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 09:26:26,676 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 09:26:26,677 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 09:26:26,677 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 09:26:26,677 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 09:26:26,677 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 09:26:26,677 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 09:26:26,678 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 09:26:26,678 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 09:26:26,678 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 09:26:26,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 09:26:26,678 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 09:26:26,679 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 09:26:26,679 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 09:26:26,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 09:26:26,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 09:26:26,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 09:26:26,750 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 09:26:26,751 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 09:26:26,752 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c [2018-08-08 09:26:27,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5bcd5fa/3b02d0b1c4f342b9abe713b8c737e2e4/FLAG1f143e22b [2018-08-08 09:26:27,722 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 09:26:27,723 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c [2018-08-08 09:26:27,767 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5bcd5fa/3b02d0b1c4f342b9abe713b8c737e2e4/FLAG1f143e22b [2018-08-08 09:26:27,782 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5bcd5fa/3b02d0b1c4f342b9abe713b8c737e2e4 [2018-08-08 09:26:27,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 09:26:27,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 09:26:27,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 09:26:27,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 09:26:27,808 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 09:26:27,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 09:26:27" (1/1) ... [2018-08-08 09:26:27,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1134c000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:27, skipping insertion in model container [2018-08-08 09:26:27,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 09:26:27" (1/1) ... [2018-08-08 09:26:28,307 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 09:26:29,984 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 09:26:30,000 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 09:26:31,155 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 09:26:31,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31 WrapperNode [2018-08-08 09:26:31,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 09:26:31,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 09:26:31,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 09:26:31,861 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 09:26:31,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:32,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:32,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 09:26:32,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 09:26:32,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 09:26:32,183 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 09:26:33,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:33,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:33,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:33,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:33,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:33,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:33,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (1/1) ... [2018-08-08 09:26:34,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 09:26:34,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 09:26:34,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 09:26:34,023 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 09:26:34,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (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 [2018-08-08 09:26:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 09:26:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 09:26:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-08-08 09:26:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-08-08 09:26:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 09:26:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 09:26:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-08-08 09:26:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-08-08 09:26:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-08-08 09:26:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-08-08 09:26:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 09:26:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 09:26:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-08-08 09:26:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-08-08 09:26:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 09:26:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 09:26:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-08 09:26:34,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-08 09:26:55,273 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 09:26:55,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 09:26:55 BoogieIcfgContainer [2018-08-08 09:26:55,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 09:26:55,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 09:26:55,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 09:26:55,279 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 09:26:55,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 09:26:27" (1/3) ... [2018-08-08 09:26:55,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c090bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 09:26:55, skipping insertion in model container [2018-08-08 09:26:55,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 09:26:31" (2/3) ... [2018-08-08 09:26:55,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c090bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 09:26:55, skipping insertion in model container [2018-08-08 09:26:55,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 09:26:55" (3/3) ... [2018-08-08 09:26:55,283 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label35_true-unreach-call.c [2018-08-08 09:26:55,293 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 09:26:55,310 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 09:26:55,378 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 09:26:55,379 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 09:26:55,379 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 09:26:55,379 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 09:26:55,380 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 09:26:55,380 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 09:26:55,380 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 09:26:55,380 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 09:26:55,380 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 09:26:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-08-08 09:26:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-08-08 09:26:55,439 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:26:55,441 INFO L376 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] [2018-08-08 09:26:55,442 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:26:55,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1253297018, now seen corresponding path program 1 times [2018-08-08 09:26:55,451 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:26:55,452 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2018-08-08 09:26:55,455 INFO L202 CegarAbsIntRunner]: [0], [1], [1075], [1082], [1090], [1098], [1106], [1114], [1122], [1130], [1138], [1146], [1154], [1162], [1170], [1178], [1186], [1194], [1202], [1210], [1218], [1226], [1234], [1242], [1250], [1258], [1266], [1274], [1282], [1290], [1298], [1306], [1314], [1322], [1330], [1338], [1342], [1344], [5775], [5779], [5785], [5789], [6833], [6834], [6835], [6839] [2018-08-08 09:26:55,507 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 09:26:55,507 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 09:26:56,626 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 09:26:56,628 INFO L272 AbstractInterpreter]: Visited 45 different actions 45 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-08-08 09:26:56,678 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 09:26:57,151 INFO L232 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 77.05% of their original sizes. [2018-08-08 09:26:57,152 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 09:26:57,390 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 09:26:57,391 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 09:26:57,392 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 09:26:57,392 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 09:26:57,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 09:26:57,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 09:26:57,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 09:26:57,408 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 6 states. [2018-08-08 09:27:19,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 09:27:19,090 INFO L93 Difference]: Finished difference Result 4946 states and 9354 transitions. [2018-08-08 09:27:19,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 09:27:19,091 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-08-08 09:27:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 09:27:19,131 INFO L225 Difference]: With dead ends: 4946 [2018-08-08 09:27:19,131 INFO L226 Difference]: Without dead ends: 3166 [2018-08-08 09:27:19,143 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 09:27:19,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2018-08-08 09:27:19,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3164. [2018-08-08 09:27:19,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3164 states. [2018-08-08 09:27:19,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 4690 transitions. [2018-08-08 09:27:19,338 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 4690 transitions. Word has length 46 [2018-08-08 09:27:19,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 09:27:19,339 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 4690 transitions. [2018-08-08 09:27:19,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 09:27:19,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 4690 transitions. [2018-08-08 09:27:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-08-08 09:27:19,355 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 09:27:19,356 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 09:27:19,356 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 09:27:19,357 INFO L82 PathProgramCache]: Analyzing trace with hash -633891611, now seen corresponding path program 1 times [2018-08-08 09:27:19,357 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 09:27:19,357 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-08-08 09:27:19,358 INFO L202 CegarAbsIntRunner]: [0], [1], [1075], [1082], [1090], [1098], [1106], [1114], [1122], [1130], [1138], [1146], [1154], [1162], [1170], [1178], [1186], [1194], [1202], [1210], [1218], [1226], [1234], [1242], [1250], [1258], [1266], [1274], [1282], [1290], [1298], [1306], [1314], [1322], [1330], [1338], [1342], [1344], [1347], [1355], [1363], [1371], [1379], [1387], [1395], [1403], [1411], [1419], [1427], [1435], [1443], [1451], [1459], [1467], [1475], [1483], [1491], [1499], [1507], [1515], [1523], [1531], [1539], [1547], [1555], [1563], [1575], [1579], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1630], [1634], [1645], [1656], [1667], [1671], [1675], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1770], [1774], [1778], [1782], [1786], [1790], [1794], [1798], [1802], [1806], [1810], [1814], [1825], [1829], [1833], [1844], [1848], [1852], [1856], [1860], [1864], [1868], [1872], [1876], [1880], [1884], [1888], [1899], [1903], [1907], [1911], [1915], [1919], [1923], [1927], [1931], [1935], [1939], [1950], [1954], [1958], [1969], [1973], [1977], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2032], [2036], [2040], [2044], [2048], [2052], [2056], [2060], [2064], [2068], [2072], [2076], [2080], [2084], [2088], [2099], [2103], [2107], [2111], [2115], [2126], [2130], [2134], [2138], [2142], [2146], [2150], [2154], [2158], [2162], [2173], [2177], [2181], [2192], [2196], [2200], [2204], [2208], [2219], [2223], [2227], [2231], [2235], [2239], [2250], [2261], [2265], [2269], [2273], [2277], [2288], [2292], [2303], [2307], [2311], [2315], [2319], [2323], [2334], [2338], [2342], [2346], [2350], [2354], [2358], [2362], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2408], [2650], [5775], [5779], [5785], [5789], [5791], [6833], [6834], [6835], [6839], [6840] [2018-08-08 09:27:19,378 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 09:27:19,378 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)