java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-simple/dll2c_insert_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:56:08,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:56:08,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:56:08,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:56:08,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:56:08,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:56:08,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:56:08,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:56:08,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:56:08,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:56:08,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:56:08,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:56:08,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:56:08,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:56:08,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:56:08,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:56:08,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:56:08,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:56:08,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:56:08,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:56:08,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:56:08,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:56:08,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:56:08,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:56:08,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:56:08,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:56:08,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:56:08,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:56:08,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:56:08,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:56:08,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:56:08,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:56:08,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:56:08,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:56:08,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:56:08,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:56:08,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:56:08,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:56:08,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:56:08,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:56:08,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:56:08,077 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:56:08,091 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:56:08,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:56:08,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:56:08,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:56:08,093 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:56:08,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:56:08,093 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:56:08,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:56:08,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:56:08,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:56:08,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:56:08,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:56:08,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:56:08,094 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:56:08,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:56:08,095 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:56:08,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:56:08,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:56:08,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:56:08,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:56:08,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:56:08,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:56:08,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:56:08,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:56:08,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:56:08,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:56:08,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:56:08,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:56:08,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:56:08,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:56:08,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:56:08,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:56:08,403 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:56:08,403 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:56:08,403 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_insert_equal.i [2019-10-13 22:56:08,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7528c66bd/7e581e2e6da34268bc895f6635b0f7a3/FLAG37a25cb25 [2019-10-13 22:56:09,022 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:56:09,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_insert_equal.i [2019-10-13 22:56:09,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7528c66bd/7e581e2e6da34268bc895f6635b0f7a3/FLAG37a25cb25 [2019-10-13 22:56:09,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7528c66bd/7e581e2e6da34268bc895f6635b0f7a3 [2019-10-13 22:56:09,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:56:09,373 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:56:09,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:56:09,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:56:09,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:56:09,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:56:09" (1/1) ... [2019-10-13 22:56:09,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3652a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:09, skipping insertion in model container [2019-10-13 22:56:09,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:56:09" (1/1) ... [2019-10-13 22:56:09,391 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:56:09,451 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:56:09,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:56:09,921 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:56:09,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:56:10,042 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:56:10,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10 WrapperNode [2019-10-13 22:56:10,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:56:10,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:56:10,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:56:10,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:56:10,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (1/1) ... [2019-10-13 22:56:10,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (1/1) ... [2019-10-13 22:56:10,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (1/1) ... [2019-10-13 22:56:10,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (1/1) ... [2019-10-13 22:56:10,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (1/1) ... [2019-10-13 22:56:10,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (1/1) ... [2019-10-13 22:56:10,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (1/1) ... [2019-10-13 22:56:10,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:56:10,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:56:10,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:56:10,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:56:10,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:56:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:56:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:56:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 22:56:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 22:56:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 22:56:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 22:56:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-10-13 22:56:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-10-13 22:56:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_insert [2019-10-13 22:56:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:56:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:56:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 22:56:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 22:56:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 22:56:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 22:56:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 22:56:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 22:56:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 22:56:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 22:56:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 22:56:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 22:56:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 22:56:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 22:56:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 22:56:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 22:56:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 22:56:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 22:56:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 22:56:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 22:56:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 22:56:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 22:56:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 22:56:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 22:56:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 22:56:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 22:56:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 22:56:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 22:56:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 22:56:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 22:56:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 22:56:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 22:56:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 22:56:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 22:56:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 22:56:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 22:56:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 22:56:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 22:56:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 22:56:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 22:56:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 22:56:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 22:56:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 22:56:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 22:56:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 22:56:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 22:56:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 22:56:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 22:56:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 22:56:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 22:56:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 22:56:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 22:56:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 22:56:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 22:56:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:56:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:56:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 22:56:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:56:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 22:56:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 22:56:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 22:56:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 22:56:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 22:56:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 22:56:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 22:56:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 22:56:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 22:56:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 22:56:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 22:56:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 22:56:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 22:56:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 22:56:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 22:56:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 22:56:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 22:56:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 22:56:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 22:56:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 22:56:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 22:56:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 22:56:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 22:56:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 22:56:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 22:56:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 22:56:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 22:56:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 22:56:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 22:56:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 22:56:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 22:56:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 22:56:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 22:56:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 22:56:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 22:56:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 22:56:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 22:56:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 22:56:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 22:56:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 22:56:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 22:56:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 22:56:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 22:56:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 22:56:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 22:56:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 22:56:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 22:56:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 22:56:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 22:56:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 22:56:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 22:56:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:56:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:56:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:56:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-10-13 22:56:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-10-13 22:56:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:56:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:56:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_insert [2019-10-13 22:56:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:56:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:56:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:56:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:56:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:56:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:56:10,720 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 22:56:12,838 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:56:12,839 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 22:56:12,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:56:12 BoogieIcfgContainer [2019-10-13 22:56:12,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:56:12,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:56:12,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:56:12,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:56:12,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:56:09" (1/3) ... [2019-10-13 22:56:12,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69335f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:56:12, skipping insertion in model container [2019-10-13 22:56:12,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:10" (2/3) ... [2019-10-13 22:56:12,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69335f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:56:12, skipping insertion in model container [2019-10-13 22:56:12,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:56:12" (3/3) ... [2019-10-13 22:56:12,848 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_insert_equal.i [2019-10-13 22:56:12,858 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:56:12,866 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:56:12,877 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:56:12,905 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:56:12,905 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:56:12,905 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:56:12,905 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:56:12,906 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:56:12,906 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:56:12,906 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:56:12,906 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:56:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-10-13 22:56:12,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 22:56:12,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:56:12,931 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:56:12,933 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:56:12,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:56:12,939 INFO L82 PathProgramCache]: Analyzing trace with hash 850705279, now seen corresponding path program 1 times [2019-10-13 22:56:12,947 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:56:12,947 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092545537] [2019-10-13 22:56:12,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:12,948 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:12,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:56:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:56:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:56:13,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092545537] [2019-10-13 22:56:13,253 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:56:13,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 22:56:13,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114866149] [2019-10-13 22:56:13,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 22:56:13,258 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:56:13,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 22:56:13,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 22:56:13,276 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-10-13 22:56:13,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:56:13,300 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2019-10-13 22:56:13,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 22:56:13,302 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2019-10-13 22:56:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:56:13,312 INFO L225 Difference]: With dead ends: 59 [2019-10-13 22:56:13,312 INFO L226 Difference]: Without dead ends: 31 [2019-10-13 22:56:13,315 INFO L600 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 [2019-10-13 22:56:13,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-13 22:56:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-13 22:56:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-13 22:56:13,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-10-13 22:56:13,360 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 30 [2019-10-13 22:56:13,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:56:13,363 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2019-10-13 22:56:13,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 22:56:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2019-10-13 22:56:13,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 22:56:13,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:56:13,365 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:56:13,365 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:56:13,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:56:13,366 INFO L82 PathProgramCache]: Analyzing trace with hash 850691360, now seen corresponding path program 1 times [2019-10-13 22:56:13,366 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:56:13,366 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418965577] [2019-10-13 22:56:13,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:13,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:13,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:56:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:56:13,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:56:13,570 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418965577] [2019-10-13 22:56:13,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:56:13,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:56:13,573 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068404073] [2019-10-13 22:56:13,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:56:13,576 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:56:13,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:56:13,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:56:13,577 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 8 states. [2019-10-13 22:56:14,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:56:14,485 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2019-10-13 22:56:14,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 22:56:14,486 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-10-13 22:56:14,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:56:14,487 INFO L225 Difference]: With dead ends: 55 [2019-10-13 22:56:14,488 INFO L226 Difference]: Without dead ends: 35 [2019-10-13 22:56:14,489 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:56:14,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-13 22:56:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2019-10-13 22:56:14,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-13 22:56:14,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-10-13 22:56:14,497 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 30 [2019-10-13 22:56:14,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:56:14,498 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-10-13 22:56:14,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:56:14,498 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-10-13 22:56:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-13 22:56:14,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:56:14,503 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:56:14,503 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:56:14,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:56:14,503 INFO L82 PathProgramCache]: Analyzing trace with hash 123959918, now seen corresponding path program 1 times [2019-10-13 22:56:14,504 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:56:14,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065985409] [2019-10-13 22:56:14,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:14,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:14,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:56:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:56:16,542 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-10-13 22:56:17,324 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 45 [2019-10-13 22:56:17,730 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 48 [2019-10-13 22:56:20,543 WARN L191 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 272 DAG size of output: 134 [2019-10-13 22:56:22,051 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 231 DAG size of output: 109 [2019-10-13 22:56:24,584 WARN L191 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 166 DAG size of output: 151 [2019-10-13 22:56:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:56:24,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065985409] [2019-10-13 22:56:24,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250683819] [2019-10-13 22:56:24,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2019-10-13 22:56:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:56:25,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 139 conjunts are in the unsatisfiable core [2019-10-13 22:56:25,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:56:25,518 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-13 22:56:25,518 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:25,526 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:25,526 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:25,527 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-10-13 22:56:25,739 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-10-13 22:56:25,740 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:25,748 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:25,748 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:25,749 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:3 [2019-10-13 22:56:25,972 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-13 22:56:25,973 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,003 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:26,004 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,004 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-10-13 22:56:26,142 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:26,143 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-10-13 22:56:26,144 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,206 INFO L567 ElimStorePlain]: treesize reduction 14, result has 79.7 percent of original size [2019-10-13 22:56:26,206 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,207 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:57, output treesize:55 [2019-10-13 22:56:26,331 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:26,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:26,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:26,361 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_183|, |v_#memory_$Pointer$.base_98|], 2=[|v_#memory_int_171|]} [2019-10-13 22:56:26,396 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2019-10-13 22:56:26,397 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,409 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 95 [2019-10-13 22:56:26,410 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,531 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-10-13 22:56:26,532 INFO L567 ElimStorePlain]: treesize reduction 101, result has 48.7 percent of original size [2019-10-13 22:56:26,543 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2019-10-13 22:56:26,544 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,579 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:26,587 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2019-10-13 22:56:26,587 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,619 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:26,620 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:26,621 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:227, output treesize:64 [2019-10-13 22:56:26,783 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_172|, |v_#memory_int_184|], 10=[|v_#memory_$Pointer$.base_99|]} [2019-10-13 22:56:26,791 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:26,870 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:26,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:26,880 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 25 [2019-10-13 22:56:26,881 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:26,927 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:26,932 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:27,078 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-10-13 22:56:27,079 INFO L341 Elim1Store]: treesize reduction 27, result has 82.7 percent of original size [2019-10-13 22:56:27,080 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 108 treesize of output 169 [2019-10-13 22:56:27,082 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:27,205 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2019-10-13 22:56:27,205 INFO L567 ElimStorePlain]: treesize reduction 177, result has 41.6 percent of original size [2019-10-13 22:56:27,207 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:27,207 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:172, output treesize:113 [2019-10-13 22:56:29,422 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-10-13 22:56:29,779 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 7 [2019-10-13 22:56:29,780 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:29,815 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:29,817 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_BEFORE_CALL_1|, |v_#memory_int_BEFORE_CALL_1|], 11=[|v_#memory_$Pointer$.base_BEFORE_CALL_1|]} [2019-10-13 22:56:29,824 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 95 [2019-10-13 22:56:29,825 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:29,871 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:29,881 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2019-10-13 22:56:29,882 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:29,909 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:29,944 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:29,945 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 97 treesize of output 83 [2019-10-13 22:56:29,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:29,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:29,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:29,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:29,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:29,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:29,954 INFO L496 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:30,013 INFO L567 ElimStorePlain]: treesize reduction 36, result has 50.0 percent of original size [2019-10-13 22:56:30,015 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:30,015 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:199, output treesize:13 [2019-10-13 22:56:30,183 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:30,213 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:30,216 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:30,235 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:30,236 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:30,236 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:92, output treesize:68 [2019-10-13 22:56:31,764 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 42 [2019-10-13 22:56:33,368 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 48 [2019-10-13 22:56:34,789 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 56 [2019-10-13 22:56:36,669 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 60 [2019-10-13 22:56:36,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:36,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:36,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:36,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:36,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:36,738 INFO L392 ElimStorePlain]: Different costs {2=[v_prenex_9, |v_#memory_int_175|, |v_#memory_int_176|, |v_#memory_int_177|, |v_#memory_int_178|, |v_#memory_int_179|, |v_#memory_int_180|, |v_#memory_int_181|, |v_#memory_int_182|], 14=[|v_#memory_$Pointer$.offset_100|, |v_#memory_$Pointer$.base_101|], 18=[v_prenex_11], 30=[v_prenex_10], 42=[v_prenex_5, v_prenex_6]} [2019-10-13 22:56:36,749 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:50,897 WARN L191 SmtUtils]: Spent 14.15 s on a formula simplification. DAG size of input: 259 DAG size of output: 164 [2019-10-13 22:56:50,898 INFO L567 ElimStorePlain]: treesize reduction 5295, result has 19.4 percent of original size [2019-10-13 22:56:50,898 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_175| vanished before elimination [2019-10-13 22:56:50,950 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.