/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-benchs/image_filter.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:01:10,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:01:10,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:01:10,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:01:10,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:01:10,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:01:10,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:01:10,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:01:10,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:01:10,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:01:10,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:01:10,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:01:10,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:01:10,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:01:10,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:01:10,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:01:10,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:01:10,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:01:10,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:01:10,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:01:10,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:01:10,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:01:10,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:01:10,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:01:10,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 16:01:10,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 16:01:10,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 16:01:10,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 16:01:10,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 16:01:10,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 16:01:10,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:01:10,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:01:10,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:01:10,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:01:10,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:01:10,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:01:10,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:01:10,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:01:10,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:01:10,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:01:10,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:01:10,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:01:10,817 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:01:10,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:01:10,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:01:10,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:01:10,821 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:01:10,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:01:10,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:01:10,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:01:10,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:01:10,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:01:10,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:01:10,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:01:10,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:01:10,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:01:10,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:01:10,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:01:10,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:01:10,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:01:10,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:01:10,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:01:10,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:01:10,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:01:10,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:01:10,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:01:10,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:01:10,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:01:11,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:01:11,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:01:11,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:01:11,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:01:11,280 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:01:11,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/image_filter.c [2021-01-06 16:01:11,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0766bb4b0/78e5722b24ab4f6888b060edfa63323b/FLAG822e66322 [2021-01-06 16:01:11,970 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:01:11,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c [2021-01-06 16:01:11,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0766bb4b0/78e5722b24ab4f6888b060edfa63323b/FLAG822e66322 [2021-01-06 16:01:12,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0766bb4b0/78e5722b24ab4f6888b060edfa63323b [2021-01-06 16:01:12,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:01:12,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:01:12,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:01:12,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:01:12,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:01:12,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:12,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51059f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12, skipping insertion in model container [2021-01-06 16:01:12,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:12,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:01:12,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 16:01:12,547 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c[564,577] left hand side expression in assignment: address: IdentifierExpression[~x1,] left hand side expression in assignment: address: IdentifierExpression[~x2,] left hand side expression in assignment: address: IdentifierExpression[~x3,] left hand side expression in assignment: address: IdentifierExpression[~x4,] left hand side expression in assignment: address: IdentifierExpression[~x5,] left hand side expression in assignment: address: IdentifierExpression[~x6,] left hand side expression in assignment: address: IdentifierExpression[~x7,] left hand side expression in assignment: address: IdentifierExpression[~x8,] left hand side expression in assignment: address: IdentifierExpression[~x9,] left hand side expression in assignment: address: IdentifierExpression[~x10,] left hand side expression in assignment: address: IdentifierExpression[~x11,] left hand side expression in assignment: address: IdentifierExpression[~x12,] left hand side expression in assignment: address: IdentifierExpression[~x13,] left hand side expression in assignment: address: IdentifierExpression[~x14,] left hand side expression in assignment: address: IdentifierExpression[~x15,] left hand side expression in assignment: address: IdentifierExpression[~x16,] left hand side expression in assignment: address: IdentifierExpression[~x17,] left hand side expression in assignment: address: IdentifierExpression[~x18,] left hand side expression in assignment: address: IdentifierExpression[~x19,] left hand side expression in assignment: lhs: VariableLHS[~y0~0,] left hand side expression in assignment: lhs: VariableLHS[~y1~0,] left hand side expression in assignment: lhs: VariableLHS[~y2~0,] left hand side expression in assignment: lhs: VariableLHS[~y3~0,] left hand side expression in assignment: lhs: VariableLHS[~y4~0,] left hand side expression in assignment: lhs: VariableLHS[~y5~0,] left hand side expression in assignment: lhs: VariableLHS[~y6~0,] left hand side expression in assignment: lhs: VariableLHS[~y7~0,] left hand side expression in assignment: lhs: VariableLHS[~y8~0,] left hand side expression in assignment: lhs: VariableLHS[~y9~0,] left hand side expression in assignment: lhs: VariableLHS[~y10~0,] left hand side expression in assignment: lhs: VariableLHS[~y11~0,] left hand side expression in assignment: lhs: VariableLHS[~y12~0,] left hand side expression in assignment: lhs: VariableLHS[~y13~0,] left hand side expression in assignment: lhs: VariableLHS[~y14~0,] left hand side expression in assignment: lhs: VariableLHS[~y15~0,] left hand side expression in assignment: lhs: VariableLHS[~y16~0,] left hand side expression in assignment: lhs: VariableLHS[~y17~0,] left hand side expression in assignment: lhs: VariableLHS[~y18~0,] left hand side expression in assignment: lhs: VariableLHS[~y19~0,] left hand side expression in assignment: address: IdentifierExpression[~z1,] left hand side expression in assignment: address: IdentifierExpression[~z2,] left hand side expression in assignment: address: IdentifierExpression[~z3,] left hand side expression in assignment: address: IdentifierExpression[~z4,] left hand side expression in assignment: address: IdentifierExpression[~z5,] left hand side expression in assignment: address: IdentifierExpression[~z6,] left hand side expression in assignment: address: IdentifierExpression[~z7,] left hand side expression in assignment: address: IdentifierExpression[~z8,] left hand side expression in assignment: address: IdentifierExpression[~z9,] left hand side expression in assignment: address: IdentifierExpression[~z10,] left hand side expression in assignment: address: IdentifierExpression[~z11,] left hand side expression in assignment: address: IdentifierExpression[~z12,] left hand side expression in assignment: address: IdentifierExpression[~z13,] left hand side expression in assignment: address: IdentifierExpression[~z14,] left hand side expression in assignment: address: IdentifierExpression[~z15,] left hand side expression in assignment: address: IdentifierExpression[~z16,] left hand side expression in assignment: address: IdentifierExpression[~z17,] left hand side expression in assignment: address: IdentifierExpression[~z18,] left hand side expression in assignment: address: IdentifierExpression[~z19,] left hand side expression in assignment: lhs: VariableLHS[~xm2~0,] left hand side expression in assignment: lhs: VariableLHS[~xm1~0,] left hand side expression in assignment: lhs: VariableLHS[~x0~0,] left hand side expression in assignment: lhs: VariableLHS[~x1~0,] left hand side expression in assignment: lhs: VariableLHS[~x2~0,] left hand side expression in assignment: lhs: VariableLHS[~x3~0,] left hand side expression in assignment: lhs: VariableLHS[~x4~0,] left hand side expression in assignment: lhs: VariableLHS[~x5~0,] left hand side expression in assignment: lhs: VariableLHS[~x6~0,] left hand side expression in assignment: lhs: VariableLHS[~x7~0,] left hand side expression in assignment: lhs: VariableLHS[~x8~0,] left hand side expression in assignment: lhs: VariableLHS[~x9~0,] left hand side expression in assignment: lhs: VariableLHS[~x10~0,] left hand side expression in assignment: lhs: VariableLHS[~x11~0,] left hand side expression in assignment: lhs: VariableLHS[~x12~0,] left hand side expression in assignment: lhs: VariableLHS[~x13~0,] left hand side expression in assignment: lhs: VariableLHS[~x14~0,] left hand side expression in assignment: lhs: VariableLHS[~x15~0,] left hand side expression in assignment: lhs: VariableLHS[~x16~0,] left hand side expression in assignment: lhs: VariableLHS[~x17~0,] left hand side expression in assignment: lhs: VariableLHS[~x18~0,] left hand side expression in assignment: lhs: VariableLHS[~x19~0,] left hand side expression in assignment: lhs: VariableLHS[~x20~0,] left hand side expression in assignment: lhs: VariableLHS[~x21~0,] left hand side expression in assignment: lhs: VariableLHS[~x1~0,] left hand side expression in assignment: lhs: VariableLHS[~x2~0,] left hand side expression in assignment: lhs: VariableLHS[~x3~0,] left hand side expression in assignment: lhs: VariableLHS[~x1~0,] left hand side expression in assignment: lhs: VariableLHS[~x2~0,] left hand side expression in assignment: lhs: VariableLHS[~x3~0,] [2021-01-06 16:01:12,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:01:12,665 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 16:01:12,679 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c[564,577] left hand side expression in assignment: address: IdentifierExpression[~x1,] left hand side expression in assignment: address: IdentifierExpression[~x2,] left hand side expression in assignment: address: IdentifierExpression[~x3,] left hand side expression in assignment: address: IdentifierExpression[~x4,] left hand side expression in assignment: address: IdentifierExpression[~x5,] left hand side expression in assignment: address: IdentifierExpression[~x6,] left hand side expression in assignment: address: IdentifierExpression[~x7,] left hand side expression in assignment: address: IdentifierExpression[~x8,] left hand side expression in assignment: address: IdentifierExpression[~x9,] left hand side expression in assignment: address: IdentifierExpression[~x10,] left hand side expression in assignment: address: IdentifierExpression[~x11,] left hand side expression in assignment: address: IdentifierExpression[~x12,] left hand side expression in assignment: address: IdentifierExpression[~x13,] left hand side expression in assignment: address: IdentifierExpression[~x14,] left hand side expression in assignment: address: IdentifierExpression[~x15,] left hand side expression in assignment: address: IdentifierExpression[~x16,] left hand side expression in assignment: address: IdentifierExpression[~x17,] left hand side expression in assignment: address: IdentifierExpression[~x18,] left hand side expression in assignment: address: IdentifierExpression[~x19,] left hand side expression in assignment: lhs: VariableLHS[~y0~0,] left hand side expression in assignment: address: IdentifierExpression[~#y1~0,] left hand side expression in assignment: address: IdentifierExpression[~#y2~0,] left hand side expression in assignment: address: IdentifierExpression[~#y3~0,] left hand side expression in assignment: address: IdentifierExpression[~#y4~0,] left hand side expression in assignment: address: IdentifierExpression[~#y5~0,] left hand side expression in assignment: address: IdentifierExpression[~#y6~0,] left hand side expression in assignment: address: IdentifierExpression[~#y7~0,] left hand side expression in assignment: address: IdentifierExpression[~#y8~0,] left hand side expression in assignment: address: IdentifierExpression[~#y9~0,] left hand side expression in assignment: address: IdentifierExpression[~#y10~0,] left hand side expression in assignment: address: IdentifierExpression[~#y11~0,] left hand side expression in assignment: address: IdentifierExpression[~#y12~0,] left hand side expression in assignment: address: IdentifierExpression[~#y13~0,] left hand side expression in assignment: address: IdentifierExpression[~#y14~0,] left hand side expression in assignment: address: IdentifierExpression[~#y15~0,] left hand side expression in assignment: address: IdentifierExpression[~#y16~0,] left hand side expression in assignment: address: IdentifierExpression[~#y17~0,] left hand side expression in assignment: address: IdentifierExpression[~#y18~0,] left hand side expression in assignment: address: IdentifierExpression[~#y19~0,] left hand side expression in assignment: address: IdentifierExpression[~z1,] left hand side expression in assignment: address: IdentifierExpression[~z2,] left hand side expression in assignment: address: IdentifierExpression[~z3,] left hand side expression in assignment: address: IdentifierExpression[~z4,] left hand side expression in assignment: address: IdentifierExpression[~z5,] left hand side expression in assignment: address: IdentifierExpression[~z6,] left hand side expression in assignment: address: IdentifierExpression[~z7,] left hand side expression in assignment: address: IdentifierExpression[~z8,] left hand side expression in assignment: address: IdentifierExpression[~z9,] left hand side expression in assignment: address: IdentifierExpression[~z10,] left hand side expression in assignment: address: IdentifierExpression[~z11,] left hand side expression in assignment: address: IdentifierExpression[~z12,] left hand side expression in assignment: address: IdentifierExpression[~z13,] left hand side expression in assignment: address: IdentifierExpression[~z14,] left hand side expression in assignment: address: IdentifierExpression[~z15,] left hand side expression in assignment: address: IdentifierExpression[~z16,] left hand side expression in assignment: address: IdentifierExpression[~z17,] left hand side expression in assignment: address: IdentifierExpression[~z18,] left hand side expression in assignment: address: IdentifierExpression[~z19,] left hand side expression in assignment: lhs: VariableLHS[~xm2~0,] left hand side expression in assignment: lhs: VariableLHS[~xm1~0,] left hand side expression in assignment: lhs: VariableLHS[~x0~0,] left hand side expression in assignment: address: IdentifierExpression[~#x1~0,] left hand side expression in assignment: address: IdentifierExpression[~#x2~0,] left hand side expression in assignment: address: IdentifierExpression[~#x3~0,] left hand side expression in assignment: address: IdentifierExpression[~#x4~0,] left hand side expression in assignment: address: IdentifierExpression[~#x5~0,] left hand side expression in assignment: address: IdentifierExpression[~#x6~0,] left hand side expression in assignment: address: IdentifierExpression[~#x7~0,] left hand side expression in assignment: address: IdentifierExpression[~#x8~0,] left hand side expression in assignment: address: IdentifierExpression[~#x9~0,] left hand side expression in assignment: address: IdentifierExpression[~#x10~0,] left hand side expression in assignment: address: IdentifierExpression[~#x11~0,] left hand side expression in assignment: address: IdentifierExpression[~#x12~0,] left hand side expression in assignment: address: IdentifierExpression[~#x13~0,] left hand side expression in assignment: address: IdentifierExpression[~#x14~0,] left hand side expression in assignment: address: IdentifierExpression[~#x15~0,] left hand side expression in assignment: address: IdentifierExpression[~#x16~0,] left hand side expression in assignment: address: IdentifierExpression[~#x17~0,] left hand side expression in assignment: address: IdentifierExpression[~#x18~0,] left hand side expression in assignment: address: IdentifierExpression[~#x19~0,] left hand side expression in assignment: lhs: VariableLHS[~x20~0,] left hand side expression in assignment: lhs: VariableLHS[~x21~0,] left hand side expression in assignment: address: IdentifierExpression[~#x1~0,] left hand side expression in assignment: address: IdentifierExpression[~#x2~0,] left hand side expression in assignment: address: IdentifierExpression[~#x3~0,] left hand side expression in assignment: address: IdentifierExpression[~#x1~0,] left hand side expression in assignment: address: IdentifierExpression[~#x2~0,] left hand side expression in assignment: address: IdentifierExpression[~#x3~0,] [2021-01-06 16:01:12,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:01:12,810 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:01:12,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12 WrapperNode [2021-01-06 16:01:12,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:01:12,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:01:12,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:01:12,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:01:12,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:12,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:13,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:01:13,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:01:13,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:01:13,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:01:13,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:13,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:13,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:13,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:13,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:13,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:13,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... [2021-01-06 16:01:13,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:01:13,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:01:13,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:01:13,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:01:13,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:01:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:01:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:01:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-01-06 16:01:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-01-06 16:01:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:01:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:01:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:01:24,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:01:24,361 INFO L299 CfgBuilder]: Removed 975 assume(true) statements. [2021-01-06 16:01:24,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:01:24 BoogieIcfgContainer [2021-01-06 16:01:24,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:01:24,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:01:24,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:01:24,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:01:24,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:01:12" (1/3) ... [2021-01-06 16:01:24,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6181139e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:01:24, skipping insertion in model container [2021-01-06 16:01:24,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:01:12" (2/3) ... [2021-01-06 16:01:24,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6181139e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:01:24, skipping insertion in model container [2021-01-06 16:01:24,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:01:24" (3/3) ... [2021-01-06 16:01:24,389 INFO L111 eAbstractionObserver]: Analyzing ICFG image_filter.c [2021-01-06 16:01:24,402 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:01:24,414 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2021-01-06 16:01:24,450 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-01-06 16:01:24,511 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:01:24,517 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:01:24,517 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:01:24,517 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:01:24,518 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:01:24,518 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:01:24,518 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:01:24,518 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:01:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states. [2021-01-06 16:01:24,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-01-06 16:01:24,577 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:01:24,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:01:24,579 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:01:24,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:01:24,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1330241267, now seen corresponding path program 1 times [2021-01-06 16:01:24,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:01:24,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908761907] [2021-01-06 16:01:24,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:01:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:01:27,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:01:27,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908761907] [2021-01-06 16:01:27,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:01:27,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 16:01:27,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441684447] [2021-01-06 16:01:27,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 16:01:27,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:01:27,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 16:01:27,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 16:01:27,354 INFO L87 Difference]: Start difference. First operand 596 states. Second operand 2 states. [2021-01-06 16:01:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:01:27,436 INFO L93 Difference]: Finished difference Result 868 states and 958 transitions. [2021-01-06 16:01:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 16:01:27,439 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 330 [2021-01-06 16:01:27,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:01:27,466 INFO L225 Difference]: With dead ends: 868 [2021-01-06 16:01:27,466 INFO L226 Difference]: Without dead ends: 592 [2021-01-06 16:01:27,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 16:01:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-01-06 16:01:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2021-01-06 16:01:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2021-01-06 16:01:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 614 transitions. [2021-01-06 16:01:27,594 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 614 transitions. Word has length 330 [2021-01-06 16:01:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:01:27,596 INFO L481 AbstractCegarLoop]: Abstraction has 592 states and 614 transitions. [2021-01-06 16:01:27,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 16:01:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 614 transitions. [2021-01-06 16:01:27,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-01-06 16:01:27,602 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:01:27,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:01:27,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:01:27,603 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:01:27,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:01:27,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2130668203, now seen corresponding path program 1 times [2021-01-06 16:01:27,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:01:27,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573724692] [2021-01-06 16:01:27,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:01:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:01:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:01:29,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573724692] [2021-01-06 16:01:29,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:01:29,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 16:01:29,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208208483] [2021-01-06 16:01:29,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 16:01:29,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:01:29,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 16:01:29,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:01:29,494 INFO L87 Difference]: Start difference. First operand 592 states and 614 transitions. Second operand 3 states. [2021-01-06 16:01:29,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:01:29,752 INFO L93 Difference]: Finished difference Result 860 states and 904 transitions. [2021-01-06 16:01:29,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 16:01:29,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2021-01-06 16:01:29,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:01:29,764 INFO L225 Difference]: With dead ends: 860 [2021-01-06 16:01:29,764 INFO L226 Difference]: Without dead ends: 746 [2021-01-06 16:01:29,767 INFO L677 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 [2021-01-06 16:01:29,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-01-06 16:01:29,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 593. [2021-01-06 16:01:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2021-01-06 16:01:29,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 615 transitions. [2021-01-06 16:01:29,801 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 615 transitions. Word has length 330 [2021-01-06 16:01:29,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:01:29,802 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 615 transitions. [2021-01-06 16:01:29,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 16:01:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 615 transitions. [2021-01-06 16:01:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-01-06 16:01:29,816 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:01:29,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:01:29,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:01:29,817 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:01:29,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:01:29,818 INFO L82 PathProgramCache]: Analyzing trace with hash -2032007747, now seen corresponding path program 1 times [2021-01-06 16:01:29,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:01:29,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883686667] [2021-01-06 16:01:29,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:01:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:01:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:01:32,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883686667] [2021-01-06 16:01:32,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496382809] [2021-01-06 16:01:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:01:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:01:36,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 12838 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 16:01:36,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:01:37,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:01:37,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 16:01:37,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-01-06 16:01:37,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245731141] [2021-01-06 16:01:37,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 16:01:37,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:01:37,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 16:01:37,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:01:37,032 INFO L87 Difference]: Start difference. First operand 593 states and 615 transitions. Second operand 5 states. [2021-01-06 16:01:37,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:01:37,595 INFO L93 Difference]: Finished difference Result 1014 states and 1061 transitions. [2021-01-06 16:01:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 16:01:37,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 484 [2021-01-06 16:01:37,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:01:37,606 INFO L225 Difference]: With dead ends: 1014 [2021-01-06 16:01:37,607 INFO L226 Difference]: Without dead ends: 900 [2021-01-06 16:01:37,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:01:37,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2021-01-06 16:01:37,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 747. [2021-01-06 16:01:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2021-01-06 16:01:37,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 772 transitions. [2021-01-06 16:01:37,635 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 772 transitions. Word has length 484 [2021-01-06 16:01:37,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:01:37,636 INFO L481 AbstractCegarLoop]: Abstraction has 747 states and 772 transitions. [2021-01-06 16:01:37,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 16:01:37,637 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 772 transitions. [2021-01-06 16:01:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2021-01-06 16:01:37,651 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:01:37,652 INFO L422 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:01:37,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-06 16:01:37,867 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:01:37,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:01:37,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1232585765, now seen corresponding path program 2 times [2021-01-06 16:01:37,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:01:37,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527124982] [2021-01-06 16:01:37,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:01:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:01:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:01:42,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527124982] [2021-01-06 16:01:42,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392679165] [2021-01-06 16:01:42,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true