/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/xcsp/Haystacks-07.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:53:12,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:53:12,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:53:12,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:53:12,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:53:12,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:53:12,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:53:12,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:53:12,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:53:12,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:53:12,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:53:12,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:53:12,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:53:12,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:53:12,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:53:12,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:53:12,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:53:12,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:53:12,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:53:12,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:53:12,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:53:12,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:53:12,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:53:12,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:53:12,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:53:12,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:53:12,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:53:12,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:53:12,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:53:12,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:53:12,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:53:12,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:53:12,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:53:12,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:53:12,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:53:12,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:53:12,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:53:12,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:53:12,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:53:12,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:53:12,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:53:12,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 11:53:12,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:53:12,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:53:12,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:53:12,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:53:12,995 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:53:12,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:53:12,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:53:12,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:53:12,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:53:12,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:53:12,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:53:12,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:53:12,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:53:12,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:53:12,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:53:12,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:53:12,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:53:12,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:53:12,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:53:12,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:53:12,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:53:12,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:53:12,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:53:12,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:53:13,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:53:13,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:53:13,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:53:13,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:53:13,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:53:13,420 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:53:13,421 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:53:13,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-07.c [2020-12-23 11:53:13,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9fb2412be/4d51e1f0666c462e86a627b19fdf683a/FLAG639b78672 [2020-12-23 11:53:14,405 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:53:14,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-07.c [2020-12-23 11:53:14,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9fb2412be/4d51e1f0666c462e86a627b19fdf683a/FLAG639b78672 [2020-12-23 11:53:14,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9fb2412be/4d51e1f0666c462e86a627b19fdf683a [2020-12-23 11:53:14,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:53:14,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:53:14,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:53:14,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:53:14,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:53:14,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:53:14" (1/1) ... [2020-12-23 11:53:14,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af8d1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:14, skipping insertion in model container [2020-12-23 11:53:14,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:53:14" (1/1) ... [2020-12-23 11:53:14,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:53:14,795 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~var0~0,] left hand side expression in assignment: lhs: VariableLHS[~var1~0,] left hand side expression in assignment: lhs: VariableLHS[~var2~0,] left hand side expression in assignment: lhs: VariableLHS[~var3~0,] left hand side expression in assignment: lhs: VariableLHS[~var4~0,] left hand side expression in assignment: lhs: VariableLHS[~var5~0,] left hand side expression in assignment: lhs: VariableLHS[~var6~0,] left hand side expression in assignment: lhs: VariableLHS[~var7~0,] left hand side expression in assignment: lhs: VariableLHS[~var8~0,] left hand side expression in assignment: lhs: VariableLHS[~var9~0,] left hand side expression in assignment: lhs: VariableLHS[~var10~0,] left hand side expression in assignment: lhs: VariableLHS[~var11~0,] left hand side expression in assignment: lhs: VariableLHS[~var12~0,] left hand side expression in assignment: lhs: VariableLHS[~var13~0,] left hand side expression in assignment: lhs: VariableLHS[~var14~0,] left hand side expression in assignment: lhs: VariableLHS[~var15~0,] left hand side expression in assignment: lhs: VariableLHS[~var16~0,] left hand side expression in assignment: lhs: VariableLHS[~var17~0,] left hand side expression in assignment: lhs: VariableLHS[~var18~0,] left hand side expression in assignment: lhs: VariableLHS[~var19~0,] left hand side expression in assignment: lhs: VariableLHS[~var20~0,] left hand side expression in assignment: lhs: VariableLHS[~var21~0,] left hand side expression in assignment: lhs: VariableLHS[~var22~0,] left hand side expression in assignment: lhs: VariableLHS[~var23~0,] left hand side expression in assignment: lhs: VariableLHS[~var24~0,] left hand side expression in assignment: lhs: VariableLHS[~var25~0,] left hand side expression in assignment: lhs: VariableLHS[~var26~0,] left hand side expression in assignment: lhs: VariableLHS[~var27~0,] left hand side expression in assignment: lhs: VariableLHS[~var28~0,] left hand side expression in assignment: lhs: VariableLHS[~var29~0,] left hand side expression in assignment: lhs: VariableLHS[~var30~0,] left hand side expression in assignment: lhs: VariableLHS[~var31~0,] left hand side expression in assignment: lhs: VariableLHS[~var32~0,] left hand side expression in assignment: lhs: VariableLHS[~var33~0,] left hand side expression in assignment: lhs: VariableLHS[~var34~0,] left hand side expression in assignment: lhs: VariableLHS[~var35~0,] left hand side expression in assignment: lhs: VariableLHS[~var36~0,] left hand side expression in assignment: lhs: VariableLHS[~var37~0,] left hand side expression in assignment: lhs: VariableLHS[~var38~0,] left hand side expression in assignment: lhs: VariableLHS[~var39~0,] left hand side expression in assignment: lhs: VariableLHS[~var40~0,] left hand side expression in assignment: lhs: VariableLHS[~var41~0,] left hand side expression in assignment: lhs: VariableLHS[~var42~0,] left hand side expression in assignment: lhs: VariableLHS[~var43~0,] left hand side expression in assignment: lhs: VariableLHS[~var44~0,] left hand side expression in assignment: lhs: VariableLHS[~var45~0,] left hand side expression in assignment: lhs: VariableLHS[~var46~0,] left hand side expression in assignment: lhs: VariableLHS[~var47~0,] left hand side expression in assignment: lhs: VariableLHS[~var48~0,] [2020-12-23 11:53:15,122 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/xcsp/Haystacks-07.c[11507,11520] [2020-12-23 11:53:15,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:53:15,171 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~var0~0,] left hand side expression in assignment: lhs: VariableLHS[~var1~0,] left hand side expression in assignment: lhs: VariableLHS[~var2~0,] left hand side expression in assignment: lhs: VariableLHS[~var3~0,] left hand side expression in assignment: lhs: VariableLHS[~var4~0,] left hand side expression in assignment: lhs: VariableLHS[~var5~0,] left hand side expression in assignment: lhs: VariableLHS[~var6~0,] left hand side expression in assignment: lhs: VariableLHS[~var7~0,] left hand side expression in assignment: lhs: VariableLHS[~var8~0,] left hand side expression in assignment: lhs: VariableLHS[~var9~0,] left hand side expression in assignment: lhs: VariableLHS[~var10~0,] left hand side expression in assignment: lhs: VariableLHS[~var11~0,] left hand side expression in assignment: lhs: VariableLHS[~var12~0,] left hand side expression in assignment: lhs: VariableLHS[~var13~0,] left hand side expression in assignment: lhs: VariableLHS[~var14~0,] left hand side expression in assignment: lhs: VariableLHS[~var15~0,] left hand side expression in assignment: lhs: VariableLHS[~var16~0,] left hand side expression in assignment: lhs: VariableLHS[~var17~0,] left hand side expression in assignment: lhs: VariableLHS[~var18~0,] left hand side expression in assignment: lhs: VariableLHS[~var19~0,] left hand side expression in assignment: lhs: VariableLHS[~var20~0,] left hand side expression in assignment: lhs: VariableLHS[~var21~0,] left hand side expression in assignment: lhs: VariableLHS[~var22~0,] left hand side expression in assignment: lhs: VariableLHS[~var23~0,] left hand side expression in assignment: lhs: VariableLHS[~var24~0,] left hand side expression in assignment: lhs: VariableLHS[~var25~0,] left hand side expression in assignment: lhs: VariableLHS[~var26~0,] left hand side expression in assignment: lhs: VariableLHS[~var27~0,] left hand side expression in assignment: lhs: VariableLHS[~var28~0,] left hand side expression in assignment: lhs: VariableLHS[~var29~0,] left hand side expression in assignment: lhs: VariableLHS[~var30~0,] left hand side expression in assignment: lhs: VariableLHS[~var31~0,] left hand side expression in assignment: lhs: VariableLHS[~var32~0,] left hand side expression in assignment: lhs: VariableLHS[~var33~0,] left hand side expression in assignment: lhs: VariableLHS[~var34~0,] left hand side expression in assignment: lhs: VariableLHS[~var35~0,] left hand side expression in assignment: lhs: VariableLHS[~var36~0,] left hand side expression in assignment: lhs: VariableLHS[~var37~0,] left hand side expression in assignment: lhs: VariableLHS[~var38~0,] left hand side expression in assignment: lhs: VariableLHS[~var39~0,] left hand side expression in assignment: lhs: VariableLHS[~var40~0,] left hand side expression in assignment: lhs: VariableLHS[~var41~0,] left hand side expression in assignment: lhs: VariableLHS[~var42~0,] left hand side expression in assignment: lhs: VariableLHS[~var43~0,] left hand side expression in assignment: lhs: VariableLHS[~var44~0,] left hand side expression in assignment: lhs: VariableLHS[~var45~0,] left hand side expression in assignment: lhs: VariableLHS[~var46~0,] left hand side expression in assignment: lhs: VariableLHS[~var47~0,] left hand side expression in assignment: lhs: VariableLHS[~var48~0,] [2020-12-23 11:53:15,246 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/xcsp/Haystacks-07.c[11507,11520] [2020-12-23 11:53:15,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:53:15,268 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:53:15,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15 WrapperNode [2020-12-23 11:53:15,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:53:15,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:53:15,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:53:15,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:53:15,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:53:15,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:53:15,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:53:15,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:53:15,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (1/1) ... [2020-12-23 11:53:15,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:53:15,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:53:15,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:53:15,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:53:15,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (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 [2020-12-23 11:53:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:53:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:53:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:53:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:53:17,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:53:17,813 INFO L299 CfgBuilder]: Removed 578 assume(true) statements. [2020-12-23 11:53:17,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:53:17 BoogieIcfgContainer [2020-12-23 11:53:17,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:53:17,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:53:17,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:53:17,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:53:17,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:53:14" (1/3) ... [2020-12-23 11:53:17,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b756f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:53:17, skipping insertion in model container [2020-12-23 11:53:17,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:53:15" (2/3) ... [2020-12-23 11:53:17,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b756f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:53:17, skipping insertion in model container [2020-12-23 11:53:17,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:53:17" (3/3) ... [2020-12-23 11:53:17,836 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-07.c [2020-12-23 11:53:17,844 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:53:17,851 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:53:17,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:53:17,927 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:53:17,927 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:53:17,927 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:53:17,928 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:53:17,928 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:53:17,928 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:53:17,928 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:53:17,928 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:53:17,970 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states. [2020-12-23 11:53:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2020-12-23 11:53:18,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:53:18,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:53:18,016 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:53:18,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:53:18,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1615389127, now seen corresponding path program 1 times [2020-12-23 11:53:18,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:53:18,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139160536] [2020-12-23 11:53:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:53:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:53:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:53:18,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139160536] [2020-12-23 11:53:18,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:53:18,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 11:53:18,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142526056] [2020-12-23 11:53:18,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 11:53:18,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:53:19,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 11:53:19,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 11:53:19,005 INFO L87 Difference]: Start difference. First operand 580 states. Second operand 2 states. [2020-12-23 11:53:19,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:53:19,065 INFO L93 Difference]: Finished difference Result 1154 states and 1726 transitions. [2020-12-23 11:53:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 11:53:19,067 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 576 [2020-12-23 11:53:19,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:53:19,086 INFO L225 Difference]: With dead ends: 1154 [2020-12-23 11:53:19,086 INFO L226 Difference]: Without dead ends: 577 [2020-12-23 11:53:19,093 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 [2020-12-23 11:53:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-12-23 11:53:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2020-12-23 11:53:19,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-12-23 11:53:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 576 transitions. [2020-12-23 11:53:19,178 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 576 transitions. Word has length 576 [2020-12-23 11:53:19,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:53:19,179 INFO L481 AbstractCegarLoop]: Abstraction has 577 states and 576 transitions. [2020-12-23 11:53:19,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 11:53:19,179 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 576 transitions. [2020-12-23 11:53:19,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2020-12-23 11:53:19,196 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:53:19,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:53:19,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:53:19,197 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:53:19,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:53:19,199 INFO L82 PathProgramCache]: Analyzing trace with hash 256525377, now seen corresponding path program 1 times [2020-12-23 11:53:19,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:53:19,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107484978] [2020-12-23 11:53:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:53:19,588 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 11:53:19,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323531969] [2020-12-23 11:53:19,589 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