/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-11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 21:46:12,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 21:46:12,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 21:46:13,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 21:46:13,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 21:46:13,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 21:46:13,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 21:46:13,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 21:46:13,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 21:46:13,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 21:46:13,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 21:46:13,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 21:46:13,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 21:46:13,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 21:46:13,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 21:46:13,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 21:46:13,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 21:46:13,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 21:46:13,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 21:46:13,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 21:46:13,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 21:46:13,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 21:46:13,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 21:46:13,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 21:46:13,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 21:46:13,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 21:46:13,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 21:46:13,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 21:46:13,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 21:46:13,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 21:46:13,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 21:46:13,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 21:46:13,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 21:46:13,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 21:46:13,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 21:46:13,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 21:46:13,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 21:46:13,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 21:46:13,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 21:46:13,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 21:46:13,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 21:46:13,093 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 21:46:13,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 21:46:13,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 21:46:13,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 21:46:13,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 21:46:13,154 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 21:46:13,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 21:46:13,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 21:46:13,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 21:46:13,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 21:46:13,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 21:46:13,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 21:46:13,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 21:46:13,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 21:46:13,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 21:46:13,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 21:46:13,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 21:46:13,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 21:46:13,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 21:46:13,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 21:46:13,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 21:46:13,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 21:46:13,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 21:46:13,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 21:46:13,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 21:46:13,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 21:46:13,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 21:46:13,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 21:46:13,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 21:46:13,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 21:46:13,622 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 21:46:13,625 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 21:46:13,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-11.c [2021-01-06 21:46:13,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a2e0da8a4/74e0c5b257db41e38a07ec98b9c67f36/FLAG2d55e818d [2021-01-06 21:46:14,467 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 21:46:14,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-11.c [2021-01-06 21:46:14,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a2e0da8a4/74e0c5b257db41e38a07ec98b9c67f36/FLAG2d55e818d [2021-01-06 21:46:14,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/a2e0da8a4/74e0c5b257db41e38a07ec98b9c67f36 [2021-01-06 21:46:14,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 21:46:14,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 21:46:14,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 21:46:14,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 21:46:14,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 21:46:14,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:46:14" (1/1) ... [2021-01-06 21:46:14,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c43addc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:14, skipping insertion in model container [2021-01-06 21:46:14,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 09:46:14" (1/1) ... [2021-01-06 21:46:14,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 21:46:14,761 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,] left hand side expression in assignment: lhs: VariableLHS[~var49~0,] left hand side expression in assignment: lhs: VariableLHS[~var50~0,] left hand side expression in assignment: lhs: VariableLHS[~var51~0,] left hand side expression in assignment: lhs: VariableLHS[~var52~0,] left hand side expression in assignment: lhs: VariableLHS[~var53~0,] left hand side expression in assignment: lhs: VariableLHS[~var54~0,] left hand side expression in assignment: lhs: VariableLHS[~var55~0,] left hand side expression in assignment: lhs: VariableLHS[~var56~0,] left hand side expression in assignment: lhs: VariableLHS[~var57~0,] left hand side expression in assignment: lhs: VariableLHS[~var58~0,] left hand side expression in assignment: lhs: VariableLHS[~var59~0,] left hand side expression in assignment: lhs: VariableLHS[~var60~0,] left hand side expression in assignment: lhs: VariableLHS[~var61~0,] left hand side expression in assignment: lhs: VariableLHS[~var62~0,] left hand side expression in assignment: lhs: VariableLHS[~var63~0,] left hand side expression in assignment: lhs: VariableLHS[~var64~0,] left hand side expression in assignment: lhs: VariableLHS[~var65~0,] left hand side expression in assignment: lhs: VariableLHS[~var66~0,] left hand side expression in assignment: lhs: VariableLHS[~var67~0,] left hand side expression in assignment: lhs: VariableLHS[~var68~0,] left hand side expression in assignment: lhs: VariableLHS[~var69~0,] left hand side expression in assignment: lhs: VariableLHS[~var70~0,] left hand side expression in assignment: lhs: VariableLHS[~var71~0,] left hand side expression in assignment: lhs: VariableLHS[~var72~0,] left hand side expression in assignment: lhs: VariableLHS[~var73~0,] left hand side expression in assignment: lhs: VariableLHS[~var74~0,] left hand side expression in assignment: lhs: VariableLHS[~var75~0,] left hand side expression in assignment: lhs: VariableLHS[~var76~0,] left hand side expression in assignment: lhs: VariableLHS[~var77~0,] left hand side expression in assignment: lhs: VariableLHS[~var78~0,] left hand side expression in assignment: lhs: VariableLHS[~var79~0,] left hand side expression in assignment: lhs: VariableLHS[~var80~0,] left hand side expression in assignment: lhs: VariableLHS[~var81~0,] left hand side expression in assignment: lhs: VariableLHS[~var82~0,] left hand side expression in assignment: lhs: VariableLHS[~var83~0,] left hand side expression in assignment: lhs: VariableLHS[~var84~0,] left hand side expression in assignment: lhs: VariableLHS[~var85~0,] left hand side expression in assignment: lhs: VariableLHS[~var86~0,] left hand side expression in assignment: lhs: VariableLHS[~var87~0,] left hand side expression in assignment: lhs: VariableLHS[~var88~0,] left hand side expression in assignment: lhs: VariableLHS[~var89~0,] left hand side expression in assignment: lhs: VariableLHS[~var90~0,] left hand side expression in assignment: lhs: VariableLHS[~var91~0,] left hand side expression in assignment: lhs: VariableLHS[~var92~0,] left hand side expression in assignment: lhs: VariableLHS[~var93~0,] left hand side expression in assignment: lhs: VariableLHS[~var94~0,] left hand side expression in assignment: lhs: VariableLHS[~var95~0,] left hand side expression in assignment: lhs: VariableLHS[~var96~0,] left hand side expression in assignment: lhs: VariableLHS[~var97~0,] left hand side expression in assignment: lhs: VariableLHS[~var98~0,] left hand side expression in assignment: lhs: VariableLHS[~var99~0,] left hand side expression in assignment: lhs: VariableLHS[~var100~0,] left hand side expression in assignment: lhs: VariableLHS[~var101~0,] left hand side expression in assignment: lhs: VariableLHS[~var102~0,] left hand side expression in assignment: lhs: VariableLHS[~var103~0,] left hand side expression in assignment: lhs: VariableLHS[~var104~0,] left hand side expression in assignment: lhs: VariableLHS[~var105~0,] left hand side expression in assignment: lhs: VariableLHS[~var106~0,] left hand side expression in assignment: lhs: VariableLHS[~var107~0,] left hand side expression in assignment: lhs: VariableLHS[~var108~0,] left hand side expression in assignment: lhs: VariableLHS[~var109~0,] left hand side expression in assignment: lhs: VariableLHS[~var110~0,] left hand side expression in assignment: lhs: VariableLHS[~var111~0,] left hand side expression in assignment: lhs: VariableLHS[~var112~0,] left hand side expression in assignment: lhs: VariableLHS[~var113~0,] left hand side expression in assignment: lhs: VariableLHS[~var114~0,] left hand side expression in assignment: lhs: VariableLHS[~var115~0,] left hand side expression in assignment: lhs: VariableLHS[~var116~0,] left hand side expression in assignment: lhs: VariableLHS[~var117~0,] left hand side expression in assignment: lhs: VariableLHS[~var118~0,] left hand side expression in assignment: lhs: VariableLHS[~var119~0,] left hand side expression in assignment: lhs: VariableLHS[~var120~0,] [2021-01-06 21:46:15,240 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-11.c[37259,37272] [2021-01-06 21:46:15,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:46:15,274 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,] left hand side expression in assignment: lhs: VariableLHS[~var49~0,] left hand side expression in assignment: lhs: VariableLHS[~var50~0,] left hand side expression in assignment: lhs: VariableLHS[~var51~0,] left hand side expression in assignment: lhs: VariableLHS[~var52~0,] left hand side expression in assignment: lhs: VariableLHS[~var53~0,] left hand side expression in assignment: lhs: VariableLHS[~var54~0,] left hand side expression in assignment: lhs: VariableLHS[~var55~0,] left hand side expression in assignment: lhs: VariableLHS[~var56~0,] left hand side expression in assignment: lhs: VariableLHS[~var57~0,] left hand side expression in assignment: lhs: VariableLHS[~var58~0,] left hand side expression in assignment: lhs: VariableLHS[~var59~0,] left hand side expression in assignment: lhs: VariableLHS[~var60~0,] left hand side expression in assignment: lhs: VariableLHS[~var61~0,] left hand side expression in assignment: lhs: VariableLHS[~var62~0,] left hand side expression in assignment: lhs: VariableLHS[~var63~0,] left hand side expression in assignment: lhs: VariableLHS[~var64~0,] left hand side expression in assignment: lhs: VariableLHS[~var65~0,] left hand side expression in assignment: lhs: VariableLHS[~var66~0,] left hand side expression in assignment: lhs: VariableLHS[~var67~0,] left hand side expression in assignment: lhs: VariableLHS[~var68~0,] left hand side expression in assignment: lhs: VariableLHS[~var69~0,] left hand side expression in assignment: lhs: VariableLHS[~var70~0,] left hand side expression in assignment: lhs: VariableLHS[~var71~0,] left hand side expression in assignment: lhs: VariableLHS[~var72~0,] left hand side expression in assignment: lhs: VariableLHS[~var73~0,] left hand side expression in assignment: lhs: VariableLHS[~var74~0,] left hand side expression in assignment: lhs: VariableLHS[~var75~0,] left hand side expression in assignment: lhs: VariableLHS[~var76~0,] left hand side expression in assignment: lhs: VariableLHS[~var77~0,] left hand side expression in assignment: lhs: VariableLHS[~var78~0,] left hand side expression in assignment: lhs: VariableLHS[~var79~0,] left hand side expression in assignment: lhs: VariableLHS[~var80~0,] left hand side expression in assignment: lhs: VariableLHS[~var81~0,] left hand side expression in assignment: lhs: VariableLHS[~var82~0,] left hand side expression in assignment: lhs: VariableLHS[~var83~0,] left hand side expression in assignment: lhs: VariableLHS[~var84~0,] left hand side expression in assignment: lhs: VariableLHS[~var85~0,] left hand side expression in assignment: lhs: VariableLHS[~var86~0,] left hand side expression in assignment: lhs: VariableLHS[~var87~0,] left hand side expression in assignment: lhs: VariableLHS[~var88~0,] left hand side expression in assignment: lhs: VariableLHS[~var89~0,] left hand side expression in assignment: lhs: VariableLHS[~var90~0,] left hand side expression in assignment: lhs: VariableLHS[~var91~0,] left hand side expression in assignment: lhs: VariableLHS[~var92~0,] left hand side expression in assignment: lhs: VariableLHS[~var93~0,] left hand side expression in assignment: lhs: VariableLHS[~var94~0,] left hand side expression in assignment: lhs: VariableLHS[~var95~0,] left hand side expression in assignment: lhs: VariableLHS[~var96~0,] left hand side expression in assignment: lhs: VariableLHS[~var97~0,] left hand side expression in assignment: lhs: VariableLHS[~var98~0,] left hand side expression in assignment: lhs: VariableLHS[~var99~0,] left hand side expression in assignment: lhs: VariableLHS[~var100~0,] left hand side expression in assignment: lhs: VariableLHS[~var101~0,] left hand side expression in assignment: lhs: VariableLHS[~var102~0,] left hand side expression in assignment: lhs: VariableLHS[~var103~0,] left hand side expression in assignment: lhs: VariableLHS[~var104~0,] left hand side expression in assignment: lhs: VariableLHS[~var105~0,] left hand side expression in assignment: lhs: VariableLHS[~var106~0,] left hand side expression in assignment: lhs: VariableLHS[~var107~0,] left hand side expression in assignment: lhs: VariableLHS[~var108~0,] left hand side expression in assignment: lhs: VariableLHS[~var109~0,] left hand side expression in assignment: lhs: VariableLHS[~var110~0,] left hand side expression in assignment: lhs: VariableLHS[~var111~0,] left hand side expression in assignment: lhs: VariableLHS[~var112~0,] left hand side expression in assignment: lhs: VariableLHS[~var113~0,] left hand side expression in assignment: lhs: VariableLHS[~var114~0,] left hand side expression in assignment: lhs: VariableLHS[~var115~0,] left hand side expression in assignment: lhs: VariableLHS[~var116~0,] left hand side expression in assignment: lhs: VariableLHS[~var117~0,] left hand side expression in assignment: lhs: VariableLHS[~var118~0,] left hand side expression in assignment: lhs: VariableLHS[~var119~0,] left hand side expression in assignment: lhs: VariableLHS[~var120~0,] [2021-01-06 21:46:15,562 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-11.c[37259,37272] [2021-01-06 21:46:15,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 21:46:15,617 INFO L208 MainTranslator]: Completed translation [2021-01-06 21:46:15,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15 WrapperNode [2021-01-06 21:46:15,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 21:46:15,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 21:46:15,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 21:46:15,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 21:46:15,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:15,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:16,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 21:46:16,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 21:46:16,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 21:46:16,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 21:46:16,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:16,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:16,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:16,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:16,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:16,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:16,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (1/1) ... [2021-01-06 21:46:16,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 21:46:16,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 21:46:16,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 21:46:16,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 21:46:16,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (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 [2021-01-06 21:46:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 21:46:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 21:46:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 21:46:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 21:46:19,956 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 21:46:19,956 INFO L299 CfgBuilder]: Removed 1918 assume(true) statements. [2021-01-06 21:46:19,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:46:19 BoogieIcfgContainer [2021-01-06 21:46:19,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 21:46:19,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 21:46:19,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 21:46:19,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 21:46:19,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 09:46:14" (1/3) ... [2021-01-06 21:46:19,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1ab068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:46:19, skipping insertion in model container [2021-01-06 21:46:19,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 09:46:15" (2/3) ... [2021-01-06 21:46:19,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1ab068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 09:46:19, skipping insertion in model container [2021-01-06 21:46:19,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 09:46:19" (3/3) ... [2021-01-06 21:46:19,971 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-11.c [2021-01-06 21:46:19,978 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 21:46:19,985 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 21:46:20,005 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 21:46:20,043 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 21:46:20,043 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 21:46:20,043 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 21:46:20,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 21:46:20,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 21:46:20,044 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 21:46:20,044 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 21:46:20,044 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 21:46:20,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states. [2021-01-06 21:46:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1917 [2021-01-06 21:46:20,256 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:46:20,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:46:20,260 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:46:20,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:46:20,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1855412905, now seen corresponding path program 1 times [2021-01-06 21:46:20,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:46:20,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751729665] [2021-01-06 21:46:20,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:46:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 21:46:23,913 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 21:46:23,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751729665] [2021-01-06 21:46:23,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 21:46:23,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 21:46:23,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057554071] [2021-01-06 21:46:23,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 21:46:23,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 21:46:23,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 21:46:23,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 21:46:23,944 INFO L87 Difference]: Start difference. First operand 1920 states. Second operand 2 states. [2021-01-06 21:46:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 21:46:24,043 INFO L93 Difference]: Finished difference Result 3834 states and 5746 transitions. [2021-01-06 21:46:24,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 21:46:24,044 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1916 [2021-01-06 21:46:24,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 21:46:24,077 INFO L225 Difference]: With dead ends: 3834 [2021-01-06 21:46:24,077 INFO L226 Difference]: Without dead ends: 1917 [2021-01-06 21:46:24,090 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 21:46:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2021-01-06 21:46:24,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1917. [2021-01-06 21:46:24,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1917 states. [2021-01-06 21:46:24,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 1916 transitions. [2021-01-06 21:46:24,233 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 1916 transitions. Word has length 1916 [2021-01-06 21:46:24,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 21:46:24,234 INFO L481 AbstractCegarLoop]: Abstraction has 1917 states and 1916 transitions. [2021-01-06 21:46:24,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 21:46:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 1916 transitions. [2021-01-06 21:46:24,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1917 [2021-01-06 21:46:24,313 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 21:46:24,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:46:24,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 21:46:24,315 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 21:46:24,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 21:46:24,318 INFO L82 PathProgramCache]: Analyzing trace with hash 572601629, now seen corresponding path program 1 times [2021-01-06 21:46:24,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 21:46:24,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98747429] [2021-01-06 21:46:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 21:46:24,678 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 21:46:24,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922409613] [2021-01-06 21:46:24,680 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