/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 01:54:27,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 01:54:27,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 01:54:27,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 01:54:27,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 01:54:27,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 01:54:27,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 01:54:27,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 01:54:27,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 01:54:27,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 01:54:27,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 01:54:27,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 01:54:27,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 01:54:27,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 01:54:27,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 01:54:27,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 01:54:27,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 01:54:27,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 01:54:27,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 01:54:27,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 01:54:27,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 01:54:27,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 01:54:27,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 01:54:27,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 01:54:27,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 01:54:27,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 01:54:27,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 01:54:27,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 01:54:27,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 01:54:27,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 01:54:27,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 01:54:27,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 01:54:27,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 01:54:27,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 01:54:27,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 01:54:27,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 01:54:27,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 01:54:27,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 01:54:27,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 01:54:27,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 01:54:27,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 01:54:27,636 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 01:54:27,651 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 01:54:27,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 01:54:27,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 01:54:27,653 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 01:54:27,653 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 01:54:27,653 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 01:54:27,653 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 01:54:27,653 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 01:54:27,654 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 01:54:27,654 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 01:54:27,654 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 01:54:27,654 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 01:54:27,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 01:54:27,655 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 01:54:27,655 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 01:54:27,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 01:54:27,656 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 01:54:27,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 01:54:27,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 01:54:27,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 01:54:27,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 01:54:27,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 01:54:27,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 01:54:27,657 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 01:54:27,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 01:54:27,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 01:54:27,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 01:54:27,658 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 01:54:27,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 01:54:27,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:54:27,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 01:54:27,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 01:54:27,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 01:54:27,659 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 01:54:27,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 01:54:27,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 01:54:27,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 01:54:27,660 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 01:54:27,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 01:54:27,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 01:54:27,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 01:54:27,998 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 01:54:27,998 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 01:54:27,999 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-11-24 01:54:28,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86880ae22/4b3999add0c5477f958671311095031c/FLAGda1b4b5cb [2019-11-24 01:54:28,815 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 01:54:28,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-11-24 01:54:28,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86880ae22/4b3999add0c5477f958671311095031c/FLAGda1b4b5cb [2019-11-24 01:54:28,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86880ae22/4b3999add0c5477f958671311095031c [2019-11-24 01:54:28,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 01:54:28,924 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 01:54:28,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 01:54:28,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 01:54:28,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 01:54:28,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:54:28" (1/1) ... [2019-11-24 01:54:28,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321a3806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:28, skipping insertion in model container [2019-11-24 01:54:28,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:54:28" (1/1) ... [2019-11-24 01:54:28,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 01:54:29,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 01:54:30,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:54:30,532 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 01:54:30,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:54:30,966 INFO L208 MainTranslator]: Completed translation [2019-11-24 01:54:30,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30 WrapperNode [2019-11-24 01:54:30,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 01:54:30,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 01:54:30,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 01:54:30,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 01:54:30,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 01:54:31,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 01:54:31,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 01:54:31,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 01:54:31,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (1/1) ... [2019-11-24 01:54:31,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 01:54:31,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 01:54:31,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 01:54:31,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 01:54:31,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (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 [2019-11-24 01:54:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-24 01:54:31,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-24 01:54:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-24 01:54:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 01:54:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 01:54:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 01:54:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 01:54:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 01:54:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 01:54:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 01:54:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 01:54:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 01:54:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-24 01:54:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 01:54:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 01:54:37,403 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 01:54:37,404 INFO L284 CfgBuilder]: Removed 339 assume(true) statements. [2019-11-24 01:54:37,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:54:37 BoogieIcfgContainer [2019-11-24 01:54:37,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 01:54:37,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 01:54:37,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 01:54:37,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 01:54:37,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:54:28" (1/3) ... [2019-11-24 01:54:37,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf52d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:54:37, skipping insertion in model container [2019-11-24 01:54:37,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:30" (2/3) ... [2019-11-24 01:54:37,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf52d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:54:37, skipping insertion in model container [2019-11-24 01:54:37,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:54:37" (3/3) ... [2019-11-24 01:54:37,413 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-11-24 01:54:37,423 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 01:54:37,430 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 01:54:37,442 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 01:54:37,467 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 01:54:37,468 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 01:54:37,468 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 01:54:37,468 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 01:54:37,468 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 01:54:37,468 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 01:54:37,469 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 01:54:37,469 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 01:54:37,487 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2019-11-24 01:54:37,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 01:54:37,493 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:54:37,494 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:54:37,495 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:54:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:54:37,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1264347184, now seen corresponding path program 1 times [2019-11-24 01:54:37,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:54:37,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353925545] [2019-11-24 01:54:37,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:54:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:54:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:54:37,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353925545] [2019-11-24 01:54:37,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:54:37,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:54:37,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709567302] [2019-11-24 01:54:37,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:54:37,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:54:37,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:54:37,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:54:37,982 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 3 states. [2019-11-24 01:54:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:54:38,129 INFO L93 Difference]: Finished difference Result 386 states and 670 transitions. [2019-11-24 01:54:38,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:54:38,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-24 01:54:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:54:38,155 INFO L225 Difference]: With dead ends: 386 [2019-11-24 01:54:38,155 INFO L226 Difference]: Without dead ends: 245 [2019-11-24 01:54:38,160 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:54:38,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2019-11-24 01:54:38,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2019-11-24 01:54:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-11-24 01:54:38,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 414 transitions. [2019-11-24 01:54:38,220 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 414 transitions. Word has length 16 [2019-11-24 01:54:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:54:38,220 INFO L462 AbstractCegarLoop]: Abstraction has 245 states and 414 transitions. [2019-11-24 01:54:38,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:54:38,221 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 414 transitions. [2019-11-24 01:54:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-24 01:54:38,226 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:54:38,226 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:54:38,226 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:54:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:54:38,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1611933962, now seen corresponding path program 1 times [2019-11-24 01:54:38,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:54:38,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425662048] [2019-11-24 01:54:38,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:54:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:54:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:54:38,447 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425662048] [2019-11-24 01:54:38,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:54:38,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 01:54:38,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082674978] [2019-11-24 01:54:38,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 01:54:38,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:54:38,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 01:54:38,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 01:54:38,455 INFO L87 Difference]: Start difference. First operand 245 states and 414 transitions. Second operand 4 states. [2019-11-24 01:54:38,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:54:38,588 INFO L93 Difference]: Finished difference Result 481 states and 813 transitions. [2019-11-24 01:54:38,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 01:54:38,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-11-24 01:54:38,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:54:38,593 INFO L225 Difference]: With dead ends: 481 [2019-11-24 01:54:38,593 INFO L226 Difference]: Without dead ends: 477 [2019-11-24 01:54:38,594 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 01:54:38,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2019-11-24 01:54:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 465. [2019-11-24 01:54:38,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-11-24 01:54:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 791 transitions. [2019-11-24 01:54:38,630 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 791 transitions. Word has length 21 [2019-11-24 01:54:38,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:54:38,631 INFO L462 AbstractCegarLoop]: Abstraction has 465 states and 791 transitions. [2019-11-24 01:54:38,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 01:54:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 791 transitions. [2019-11-24 01:54:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-24 01:54:38,635 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:54:38,635 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-24 01:54:38,636 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:54:38,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:54:38,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1618466481, now seen corresponding path program 1 times [2019-11-24 01:54:38,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:54:38,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294936954] [2019-11-24 01:54:38,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:54:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:54:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:54:38,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294936954] [2019-11-24 01:54:38,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:54:38,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:54:38,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115282521] [2019-11-24 01:54:38,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:54:38,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:54:38,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:54:38,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:54:38,758 INFO L87 Difference]: Start difference. First operand 465 states and 791 transitions. Second operand 3 states. [2019-11-24 01:54:38,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:54:38,851 INFO L93 Difference]: Finished difference Result 1011 states and 1716 transitions. [2019-11-24 01:54:38,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:54:38,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2019-11-24 01:54:38,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:54:38,855 INFO L225 Difference]: With dead ends: 1011 [2019-11-24 01:54:38,855 INFO L226 Difference]: Without dead ends: 555 [2019-11-24 01:54:38,858 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:54:38,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2019-11-24 01:54:38,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 551. [2019-11-24 01:54:38,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-11-24 01:54:38,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 933 transitions. [2019-11-24 01:54:38,895 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 933 transitions. Word has length 49 [2019-11-24 01:54:38,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:54:38,895 INFO L462 AbstractCegarLoop]: Abstraction has 551 states and 933 transitions. [2019-11-24 01:54:38,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:54:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 933 transitions. [2019-11-24 01:54:38,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-24 01:54:38,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:54:38,906 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-24 01:54:38,906 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:54:38,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:54:38,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1825563606, now seen corresponding path program 1 times [2019-11-24 01:54:38,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:54:38,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520454938] [2019-11-24 01:54:38,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:54:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:54:39,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-24 01:54:39,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520454938] [2019-11-24 01:54:39,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:54:39,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:54:39,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337104933] [2019-11-24 01:54:39,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:54:39,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:54:39,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:54:39,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:54:39,101 INFO L87 Difference]: Start difference. First operand 551 states and 933 transitions. Second operand 3 states. [2019-11-24 01:54:39,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:54:39,146 INFO L93 Difference]: Finished difference Result 1332 states and 2262 transitions. [2019-11-24 01:54:39,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:54:39,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-11-24 01:54:39,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:54:39,153 INFO L225 Difference]: With dead ends: 1332 [2019-11-24 01:54:39,153 INFO L226 Difference]: Without dead ends: 1053 [2019-11-24 01:54:39,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:54:39,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2019-11-24 01:54:39,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 559. [2019-11-24 01:54:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2019-11-24 01:54:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 941 transitions. [2019-11-24 01:54:39,185 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 941 transitions. Word has length 59 [2019-11-24 01:54:39,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:54:39,186 INFO L462 AbstractCegarLoop]: Abstraction has 559 states and 941 transitions. [2019-11-24 01:54:39,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:54:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 941 transitions. [2019-11-24 01:54:39,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-24 01:54:39,187 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:54:39,187 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-24 01:54:39,188 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:54:39,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:54:39,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1817405520, now seen corresponding path program 1 times [2019-11-24 01:54:39,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:54:39,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454339289] [2019-11-24 01:54:39,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:54:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:54:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-24 01:54:39,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454339289] [2019-11-24 01:54:39,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:54:39,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:54:39,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112691430] [2019-11-24 01:54:39,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:54:39,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:54:39,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:54:39,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:54:39,320 INFO L87 Difference]: Start difference. First operand 559 states and 941 transitions. Second operand 3 states. [2019-11-24 01:54:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:54:39,355 INFO L93 Difference]: Finished difference Result 1112 states and 1873 transitions. [2019-11-24 01:54:39,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:54:39,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-11-24 01:54:39,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:54:39,358 INFO L225 Difference]: With dead ends: 1112 [2019-11-24 01:54:39,359 INFO L226 Difference]: Without dead ends: 561 [2019-11-24 01:54:39,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:54:39,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2019-11-24 01:54:39,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2019-11-24 01:54:39,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2019-11-24 01:54:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 943 transitions. [2019-11-24 01:54:39,458 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 943 transitions. Word has length 60 [2019-11-24 01:54:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:54:39,460 INFO L462 AbstractCegarLoop]: Abstraction has 561 states and 943 transitions. [2019-11-24 01:54:39,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:54:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 943 transitions. [2019-11-24 01:54:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-24 01:54:39,465 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:54:39,465 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-24 01:54:39,465 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:54:39,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:54:39,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1644665564, now seen corresponding path program 1 times [2019-11-24 01:54:39,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:54:39,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338376337] [2019-11-24 01:54:39,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:54:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:54:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-24 01:54:39,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338376337] [2019-11-24 01:54:39,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:54:39,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 01:54:39,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760709551] [2019-11-24 01:54:39,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 01:54:39,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:54:39,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 01:54:39,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-24 01:54:39,798 INFO L87 Difference]: Start difference. First operand 561 states and 943 transitions. Second operand 4 states. [2019-11-24 01:54:39,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:54:39,877 INFO L93 Difference]: Finished difference Result 1063 states and 1793 transitions. [2019-11-24 01:54:39,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 01:54:39,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2019-11-24 01:54:39,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:54:39,879 INFO L225 Difference]: With dead ends: 1063 [2019-11-24 01:54:39,879 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 01:54:39,882 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-24 01:54:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 01:54:39,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 01:54:39,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 01:54:39,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 01:54:39,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2019-11-24 01:54:39,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:54:39,894 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 01:54:39,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 01:54:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 01:54:39,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 01:54:39,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 01:54:40,282 INFO L444 ceAbstractionStarter]: For program point L5984-1(line 5984) no Hoare annotation was computed. [2019-11-24 01:54:40,282 INFO L444 ceAbstractionStarter]: For program point L5984(line 5984) no Hoare annotation was computed. [2019-11-24 01:54:40,282 INFO L440 ceAbstractionStarter]: At program point L6186(line 6186) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,282 INFO L440 ceAbstractionStarter]: At program point L6255(line 6255) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,283 INFO L444 ceAbstractionStarter]: For program point L5991(lines 5991 5994) no Hoare annotation was computed. [2019-11-24 01:54:40,283 INFO L444 ceAbstractionStarter]: For program point L5991-1(lines 5991 5994) no Hoare annotation was computed. [2019-11-24 01:54:40,283 INFO L447 ceAbstractionStarter]: At program point L5664(lines 6564 6575) the Hoare annotation is: true [2019-11-24 01:54:40,283 INFO L444 ceAbstractionStarter]: For program point L5996-1(lines 5996 5999) no Hoare annotation was computed. [2019-11-24 01:54:40,283 INFO L444 ceAbstractionStarter]: For program point L5996(lines 5996 5999) no Hoare annotation was computed. [2019-11-24 01:54:40,283 INFO L440 ceAbstractionStarter]: At program point L6658(lines 1 6667) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,283 INFO L444 ceAbstractionStarter]: For program point L5667(line 5667) no Hoare annotation was computed. [2019-11-24 01:54:40,284 INFO L440 ceAbstractionStarter]: At program point L6658-1(lines 1 6667) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,284 INFO L444 ceAbstractionStarter]: For program point L6196(line 6196) no Hoare annotation was computed. [2019-11-24 01:54:40,284 INFO L440 ceAbstractionStarter]: At program point L5933(lines 5933 5936) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,284 INFO L440 ceAbstractionStarter]: At program point L5933-1(lines 5933 5936) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,284 INFO L444 ceAbstractionStarter]: For program point L6000-1(lines 6000 6003) no Hoare annotation was computed. [2019-11-24 01:54:40,284 INFO L444 ceAbstractionStarter]: For program point L6000(lines 6000 6003) no Hoare annotation was computed. [2019-11-24 01:54:40,284 INFO L444 ceAbstractionStarter]: For program point L6266(line 6266) no Hoare annotation was computed. [2019-11-24 01:54:40,284 INFO L440 ceAbstractionStarter]: At program point L6267(lines 6267 6271) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,285 INFO L440 ceAbstractionStarter]: At program point L6267-2(lines 6242 6288) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,285 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 01:54:40,285 INFO L440 ceAbstractionStarter]: At program point L5872-2(lines 5872 5889) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,285 INFO L440 ceAbstractionStarter]: At program point L5872(lines 5872 5889) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,285 INFO L440 ceAbstractionStarter]: At program point L5872-5(lines 5872 5889) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,285 INFO L447 ceAbstractionStarter]: At program point L5674(lines 5673 5676) the Hoare annotation is: true [2019-11-24 01:54:40,285 INFO L440 ceAbstractionStarter]: At program point L5872-3(lines 5872 5889) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,286 INFO L447 ceAbstractionStarter]: At program point L5674-3(lines 5673 5676) the Hoare annotation is: true [2019-11-24 01:54:40,286 INFO L447 ceAbstractionStarter]: At program point L5674-1(lines 5673 5676) the Hoare annotation is: true [2019-11-24 01:54:40,286 INFO L447 ceAbstractionStarter]: At program point L5674-2(lines 5673 5676) the Hoare annotation is: true [2019-11-24 01:54:40,286 INFO L444 ceAbstractionStarter]: For program point L6203(line 6203) no Hoare annotation was computed. [2019-11-24 01:54:40,286 INFO L444 ceAbstractionStarter]: For program point L6137(line 6137) no Hoare annotation was computed. [2019-11-24 01:54:40,286 INFO L444 ceAbstractionStarter]: For program point L5939(lines 5939 6036) no Hoare annotation was computed. [2019-11-24 01:54:40,286 INFO L440 ceAbstractionStarter]: At program point L6005-2(lines 5990 6036) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,287 INFO L444 ceAbstractionStarter]: For program point L5939-1(lines 5939 6036) no Hoare annotation was computed. [2019-11-24 01:54:40,287 INFO L440 ceAbstractionStarter]: At program point L6005-3(lines 6005 6015) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,287 INFO L440 ceAbstractionStarter]: At program point L6005(lines 6005 6015) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,287 INFO L440 ceAbstractionStarter]: At program point L6005-5(lines 5990 6036) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,287 INFO L444 ceAbstractionStarter]: For program point L6138(lines 6138 6201) no Hoare annotation was computed. [2019-11-24 01:54:40,287 INFO L444 ceAbstractionStarter]: For program point L6204(lines 6204 6237) no Hoare annotation was computed. [2019-11-24 01:54:40,287 INFO L440 ceAbstractionStarter]: At program point L5940-1(lines 5940 5955) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,288 INFO L440 ceAbstractionStarter]: At program point L5940(lines 5940 5955) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,288 INFO L440 ceAbstractionStarter]: At program point L5810(lines 5810 5813) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,288 INFO L440 ceAbstractionStarter]: At program point L5810-1(lines 5810 5813) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,288 INFO L444 ceAbstractionStarter]: For program point L6405-3(lines 6402 6431) no Hoare annotation was computed. [2019-11-24 01:54:40,288 INFO L440 ceAbstractionStarter]: At program point L6405-2(lines 6405 6416) the Hoare annotation is: (and (= ULTIMATE.start_ldv_set_remove_~i~1 0) (= (+ ULTIMATE.start_ldv_set_remove_~deleted_index~0 1) 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,288 INFO L444 ceAbstractionStarter]: For program point L6207(line 6207) no Hoare annotation was computed. [2019-11-24 01:54:40,288 INFO L444 ceAbstractionStarter]: For program point L6405-7(lines 6402 6431) no Hoare annotation was computed. [2019-11-24 01:54:40,289 INFO L440 ceAbstractionStarter]: At program point L6405-6(lines 6405 6416) the Hoare annotation is: (and (= ULTIMATE.start_ldv_set_remove_~i~1 0) (= (+ ULTIMATE.start_ldv_set_remove_~deleted_index~0 1) 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,289 INFO L440 ceAbstractionStarter]: At program point L6141(line 6141) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,289 INFO L444 ceAbstractionStarter]: For program point L5877(lines 5877 5880) no Hoare annotation was computed. [2019-11-24 01:54:40,289 INFO L444 ceAbstractionStarter]: For program point L5877-1(lines 5877 5880) no Hoare annotation was computed. [2019-11-24 01:54:40,289 INFO L444 ceAbstractionStarter]: For program point L6406(lines 6406 6409) no Hoare annotation was computed. [2019-11-24 01:54:40,289 INFO L444 ceAbstractionStarter]: For program point L6406-2(lines 6406 6409) no Hoare annotation was computed. [2019-11-24 01:54:40,290 INFO L440 ceAbstractionStarter]: At program point L6208(lines 6208 6213) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,290 INFO L440 ceAbstractionStarter]: At program point L-1-2(line -1) the Hoare annotation is: (and (= ~ldv_state_variable_2~0 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,290 INFO L444 ceAbstractionStarter]: For program point L6011(lines 6011 6014) no Hoare annotation was computed. [2019-11-24 01:54:40,290 INFO L444 ceAbstractionStarter]: For program point L6011-1(lines 6011 6014) no Hoare annotation was computed. [2019-11-24 01:54:40,290 INFO L440 ceAbstractionStarter]: At program point L-1-5(line -1) the Hoare annotation is: (and (= ~ldv_state_variable_2~0 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,290 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5668) no Hoare annotation was computed. [2019-11-24 01:54:40,290 INFO L440 ceAbstractionStarter]: At program point L-1-8(line -1) the Hoare annotation is: (and (= ~ldv_state_variable_2~0 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,291 INFO L440 ceAbstractionStarter]: At program point L-1-11(line -1) the Hoare annotation is: (and (= ~ldv_state_variable_2~0 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,291 INFO L440 ceAbstractionStarter]: At program point L-1-14(line -1) the Hoare annotation is: (and (= ~last_index~0 0) (= ~ldv_state_variable_0~0 1)) [2019-11-24 01:54:40,291 INFO L440 ceAbstractionStarter]: At program point L-1-17(line -1) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,291 INFO L440 ceAbstractionStarter]: At program point L-1-20(line -1) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,291 INFO L440 ceAbstractionStarter]: At program point L-1-23(line -1) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,291 INFO L440 ceAbstractionStarter]: At program point L-1-25(line -1) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,291 INFO L440 ceAbstractionStarter]: At program point L-1-28(line -1) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,291 INFO L440 ceAbstractionStarter]: At program point L-1-30(line -1) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,292 INFO L444 ceAbstractionStarter]: For program point L5881(lines 5881 5887) no Hoare annotation was computed. [2019-11-24 01:54:40,292 INFO L444 ceAbstractionStarter]: For program point L5881-1(lines 5881 5887) no Hoare annotation was computed. [2019-11-24 01:54:40,292 INFO L444 ceAbstractionStarter]: For program point L6410(lines 6410 6414) no Hoare annotation was computed. [2019-11-24 01:54:40,292 INFO L440 ceAbstractionStarter]: At program point L6278(line 6278) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,292 INFO L444 ceAbstractionStarter]: For program point L6410-1(lines 6410 6414) no Hoare annotation was computed. [2019-11-24 01:54:40,292 INFO L444 ceAbstractionStarter]: For program point L5817(lines 5817 5824) no Hoare annotation was computed. [2019-11-24 01:54:40,292 INFO L444 ceAbstractionStarter]: For program point L5817-1(lines 5817 5824) no Hoare annotation was computed. [2019-11-24 01:54:40,292 INFO L444 ceAbstractionStarter]: For program point L6215(line 6215) no Hoare annotation was computed. [2019-11-24 01:54:40,293 INFO L440 ceAbstractionStarter]: At program point L6216(lines 6216 6230) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,293 INFO L444 ceAbstractionStarter]: For program point L6218(lines 6218 6223) no Hoare annotation was computed. [2019-11-24 01:54:40,293 INFO L440 ceAbstractionStarter]: At program point L6218-1(lines 6216 6229) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,293 INFO L440 ceAbstractionStarter]: At program point L6152(line 6152) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,293 INFO L440 ceAbstractionStarter]: At program point L6417-3(lines 1 6667) the Hoare annotation is: (and (= ULTIMATE.start_ldv_set_remove_~i~1 0) (= (+ ULTIMATE.start_ldv_set_remove_~deleted_index~0 1) 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,293 INFO L440 ceAbstractionStarter]: At program point L6417-1(lines 1 6667) the Hoare annotation is: (and (= ULTIMATE.start_ldv_set_remove_~i~1 0) (= (+ ULTIMATE.start_ldv_set_remove_~deleted_index~0 1) 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,294 INFO L444 ceAbstractionStarter]: For program point L6286(line 6286) no Hoare annotation was computed. [2019-11-24 01:54:40,294 INFO L440 ceAbstractionStarter]: At program point L6617-3(lines 6025 6028) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,294 INFO L440 ceAbstractionStarter]: At program point L6617-1(lines 6025 6028) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,294 INFO L444 ceAbstractionStarter]: For program point L6419-3(lines 6419 6426) no Hoare annotation was computed. [2019-11-24 01:54:40,294 INFO L440 ceAbstractionStarter]: At program point L6419-2(lines 6419 6426) the Hoare annotation is: false [2019-11-24 01:54:40,294 INFO L444 ceAbstractionStarter]: For program point L6419-7(lines 6419 6426) no Hoare annotation was computed. [2019-11-24 01:54:40,294 INFO L440 ceAbstractionStarter]: At program point L6419-6(lines 6419 6426) the Hoare annotation is: false [2019-11-24 01:54:40,295 INFO L440 ceAbstractionStarter]: At program point L5891(lines 5891 5894) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,295 INFO L440 ceAbstractionStarter]: At program point L5891-1(lines 5891 5894) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,295 INFO L444 ceAbstractionStarter]: For program point L6420-2(lines 6420 6423) no Hoare annotation was computed. [2019-11-24 01:54:40,295 INFO L444 ceAbstractionStarter]: For program point L6420(lines 6420 6423) no Hoare annotation was computed. [2019-11-24 01:54:40,295 INFO L444 ceAbstractionStarter]: For program point L5958(line 5958) no Hoare annotation was computed. [2019-11-24 01:54:40,295 INFO L444 ceAbstractionStarter]: For program point L5958-1(line 5958) no Hoare annotation was computed. [2019-11-24 01:54:40,295 INFO L440 ceAbstractionStarter]: At program point L5960-1(lines 5960 5963) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,296 INFO L440 ceAbstractionStarter]: At program point L5960(lines 5960 5963) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,296 INFO L440 ceAbstractionStarter]: At program point L6226(lines 6122 6301) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,296 INFO L444 ceAbstractionStarter]: For program point L6293(line 6293) no Hoare annotation was computed. [2019-11-24 01:54:40,296 INFO L440 ceAbstractionStarter]: At program point L5897(lines 5897 5898) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,296 INFO L440 ceAbstractionStarter]: At program point L5897-1(lines 5897 5898) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,296 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 01:54:40,296 INFO L440 ceAbstractionStarter]: At program point L6296(lines 6122 6301) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,297 INFO L440 ceAbstractionStarter]: At program point L5967(lines 5967 5970) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,297 INFO L440 ceAbstractionStarter]: At program point L5967-1(lines 5967 5970) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,297 INFO L440 ceAbstractionStarter]: At program point L6166(line 6166) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,297 INFO L444 ceAbstractionStarter]: For program point L6232(line 6232) no Hoare annotation was computed. [2019-11-24 01:54:40,297 INFO L444 ceAbstractionStarter]: For program point L5638(lines 5638 5645) no Hoare annotation was computed. [2019-11-24 01:54:40,297 INFO L444 ceAbstractionStarter]: For program point L5638-3(lines 5638 5645) no Hoare annotation was computed. [2019-11-24 01:54:40,297 INFO L444 ceAbstractionStarter]: For program point L5638-4(lines 5638 5645) no Hoare annotation was computed. [2019-11-24 01:54:40,298 INFO L444 ceAbstractionStarter]: For program point L5638-1(lines 5638 5645) no Hoare annotation was computed. [2019-11-24 01:54:40,298 INFO L440 ceAbstractionStarter]: At program point L6629-1(lines 1 6667) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,298 INFO L444 ceAbstractionStarter]: For program point L5638-2(lines 5638 5645) no Hoare annotation was computed. [2019-11-24 01:54:40,298 INFO L440 ceAbstractionStarter]: At program point L6629(lines 1 6667) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,298 INFO L440 ceAbstractionStarter]: At program point L6039(lines 5929 6045) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,298 INFO L440 ceAbstractionStarter]: At program point L6039-1(lines 5929 6045) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,298 INFO L444 ceAbstractionStarter]: For program point L6040-1(lines 6040 6043) no Hoare annotation was computed. [2019-11-24 01:54:40,298 INFO L444 ceAbstractionStarter]: For program point L6040(lines 6040 6043) no Hoare annotation was computed. [2019-11-24 01:54:40,299 INFO L440 ceAbstractionStarter]: At program point L5644-1(lines 5631 5647) the Hoare annotation is: (and (= ~ldv_state_variable_2~0 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,299 INFO L440 ceAbstractionStarter]: At program point L5644-2(lines 5631 5647) the Hoare annotation is: (and (= ~last_index~0 0) (= ~ldv_state_variable_0~0 1)) [2019-11-24 01:54:40,299 INFO L440 ceAbstractionStarter]: At program point L5644(lines 5631 5647) the Hoare annotation is: (and (= ~ldv_state_variable_2~0 0) (= ~last_index~0 0)) [2019-11-24 01:54:40,299 INFO L440 ceAbstractionStarter]: At program point L5644-3(lines 5631 5647) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,299 INFO L440 ceAbstractionStarter]: At program point L5644-4(lines 5631 5647) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,299 INFO L444 ceAbstractionStarter]: For program point L6569(lines 6569 6572) no Hoare annotation was computed. [2019-11-24 01:54:40,300 INFO L444 ceAbstractionStarter]: For program point L6239(line 6239) no Hoare annotation was computed. [2019-11-24 01:54:40,300 INFO L440 ceAbstractionStarter]: At program point L6041(lines 5929 6045) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,300 INFO L440 ceAbstractionStarter]: At program point L6041-1(lines 5929 6045) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,300 INFO L444 ceAbstractionStarter]: For program point L6240(lines 6240 6291) no Hoare annotation was computed. [2019-11-24 01:54:40,300 INFO L444 ceAbstractionStarter]: For program point L5976-1(line 5976) no Hoare annotation was computed. [2019-11-24 01:54:40,300 INFO L440 ceAbstractionStarter]: At program point L5910(lines 5847 5912) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,300 INFO L444 ceAbstractionStarter]: For program point L5976(line 5976) no Hoare annotation was computed. [2019-11-24 01:54:40,301 INFO L440 ceAbstractionStarter]: At program point L5910-1(lines 5847 5912) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,301 INFO L440 ceAbstractionStarter]: At program point L6176(line 6176) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,301 INFO L440 ceAbstractionStarter]: At program point L6044-1(lines 5913 6046) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,301 INFO L440 ceAbstractionStarter]: At program point L6044(lines 5913 6046) the Hoare annotation is: (= ~last_index~0 0) [2019-11-24 01:54:40,301 INFO L444 ceAbstractionStarter]: For program point L6243(line 6243) no Hoare annotation was computed. [2019-11-24 01:54:40,301 INFO L444 ceAbstractionStarter]: For program point L6244-2(lines 6242 6288) no Hoare annotation was computed. [2019-11-24 01:54:40,301 INFO L444 ceAbstractionStarter]: For program point L6244(lines 6244 6248) no Hoare annotation was computed. [2019-11-24 01:54:40,302 INFO L444 ceAbstractionStarter]: For program point L5980-1(line 5980) no Hoare annotation was computed. [2019-11-24 01:54:40,302 INFO L444 ceAbstractionStarter]: For program point L5980(line 5980) no Hoare annotation was computed. [2019-11-24 01:54:40,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:54:40 BoogieIcfgContainer [2019-11-24 01:54:40,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 01:54:40,350 INFO L168 Benchmark]: Toolchain (without parser) took 11425.08 ms. Allocated memory was 144.7 MB in the beginning and 369.1 MB in the end (delta: 224.4 MB). Free memory was 94.6 MB in the beginning and 152.3 MB in the end (delta: -57.7 MB). Peak memory consumption was 166.7 MB. Max. memory is 7.1 GB. [2019-11-24 01:54:40,351 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 01:54:40,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2043.05 ms. Allocated memory was 144.7 MB in the beginning and 240.1 MB in the end (delta: 95.4 MB). Free memory was 94.2 MB in the beginning and 194.1 MB in the end (delta: -99.9 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2019-11-24 01:54:40,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 246.64 ms. Allocated memory is still 240.1 MB. Free memory was 194.1 MB in the beginning and 181.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-11-24 01:54:40,354 INFO L168 Benchmark]: Boogie Preprocessor took 158.56 ms. Allocated memory is still 240.1 MB. Free memory was 181.6 MB in the beginning and 169.4 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-11-24 01:54:40,355 INFO L168 Benchmark]: RCFGBuilder took 6030.98 ms. Allocated memory was 240.1 MB in the beginning and 365.4 MB in the end (delta: 125.3 MB). Free memory was 169.4 MB in the beginning and 278.2 MB in the end (delta: -108.7 MB). Peak memory consumption was 175.2 MB. Max. memory is 7.1 GB. [2019-11-24 01:54:40,356 INFO L168 Benchmark]: TraceAbstraction took 2940.90 ms. Allocated memory was 365.4 MB in the beginning and 369.1 MB in the end (delta: 3.7 MB). Free memory was 278.2 MB in the beginning and 152.3 MB in the end (delta: 125.9 MB). Peak memory consumption was 129.6 MB. Max. memory is 7.1 GB. [2019-11-24 01:54:40,361 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2043.05 ms. Allocated memory was 144.7 MB in the beginning and 240.1 MB in the end (delta: 95.4 MB). Free memory was 94.2 MB in the beginning and 194.1 MB in the end (delta: -99.9 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 246.64 ms. Allocated memory is still 240.1 MB. Free memory was 194.1 MB in the beginning and 181.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.56 ms. Allocated memory is still 240.1 MB. Free memory was 181.6 MB in the beginning and 169.4 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6030.98 ms. Allocated memory was 240.1 MB in the beginning and 365.4 MB in the end (delta: 125.3 MB). Free memory was 169.4 MB in the beginning and 278.2 MB in the end (delta: -108.7 MB). Peak memory consumption was 175.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2940.90 ms. Allocated memory was 365.4 MB in the beginning and 369.1 MB in the end (delta: 3.7 MB). Free memory was 278.2 MB in the beginning and 152.3 MB in the end (delta: 125.9 MB). Peak memory consumption was 129.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5668]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5891]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6176]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5891]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5929]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6564]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5929]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5990]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5990]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6005]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6166]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6005]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5847]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5847]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6419]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6419]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5631]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5940]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5631]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5940]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6216]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6152]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6141]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5933]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5929]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6025]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: last_index == 0 && ldv_state_variable_0 == 1 - InvariantResult [Line: 6405]: Loop Invariant Derived loop invariant: (i == 0 && deleted_index + 1 == 0) && last_index == 0 - InvariantResult [Line: 5631]: Loop Invariant Derived loop invariant: last_index == 0 && ldv_state_variable_0 == 1 - InvariantResult [Line: 6405]: Loop Invariant Derived loop invariant: (i == 0 && deleted_index + 1 == 0) && last_index == 0 - InvariantResult [Line: 5631]: Loop Invariant Derived loop invariant: ldv_state_variable_2 == 0 && last_index == 0 - InvariantResult [Line: 6025]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5631]: Loop Invariant Derived loop invariant: ldv_state_variable_2 == 0 && last_index == 0 - InvariantResult [Line: 5933]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5929]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ldv_state_variable_2 == 0 && last_index == 0 - InvariantResult [Line: 5673]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5673]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5897]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5673]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5897]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6255]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6122]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ldv_state_variable_2 == 0 && last_index == 0 - InvariantResult [Line: 5872]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6208]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5872]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6186]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5673]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6242]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5967]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (i == 0 && deleted_index + 1 == 0) && last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ldv_state_variable_2 == 0 && last_index == 0 - InvariantResult [Line: 6122]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5872]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5913]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5810]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6278]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6267]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5913]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (i == 0 && deleted_index + 1 == 0) && last_index == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5967]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ldv_state_variable_2 == 0 && last_index == 0 - InvariantResult [Line: 5872]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 6216]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5960]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5810]: Loop Invariant Derived loop invariant: last_index == 0 - InvariantResult [Line: 5960]: Loop Invariant Derived loop invariant: last_index == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 140 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 1700 SDtfs, 1009 SDslu, 1452 SDs, 0 SdLazy, 77 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=561occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 510 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 77 LocationsWithAnnotation, 77 PreInvPairs, 360 NumberOfFragments, 285 HoareAnnotationTreeSize, 77 FomulaSimplifications, 5981 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 77 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 267 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 20807 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 38/38 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...