/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/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/sll2c_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:57:20,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:57:20,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:57:20,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:57:20,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:57:20,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:57:20,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:57:20,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:57:20,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:57:20,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:57:20,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:57:20,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:57:20,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:57:20,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:57:20,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:57:20,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:57:20,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:57:20,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:57:20,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:57:20,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:57:20,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:57:20,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:57:20,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:57:20,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:57:20,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:57:20,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:57:20,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:57:20,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:57:20,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:57:20,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:57:20,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:57:20,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:57:20,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:57:20,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:57:20,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:57:20,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:57:20,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:57:20,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:57:20,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:57:20,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:57:20,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:57:20,270 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 [2019-11-07 03:57:20,303 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:57:20,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:57:20,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:57:20,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:57:20,311 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:57:20,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:57:20,311 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:57:20,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:57:20,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:57:20,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:57:20,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:57:20,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:57:20,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:57:20,313 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:57:20,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:57:20,313 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:57:20,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:57:20,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:57:20,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:57:20,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:57:20,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:57:20,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:57:20,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:57:20,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:57:20,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:57:20,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:57:20,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:57:20,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:57:20,316 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 [2019-11-07 03:57:20,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:57:20,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:57:20,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:57:20,629 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:57:20,629 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:57:20,630 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_update_all_reverse.i [2019-11-07 03:57:20,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e917f21fd/faf6e8b79e214c358ea5218988581d67/FLAG59277edde [2019-11-07 03:57:21,279 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:57:21,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_update_all_reverse.i [2019-11-07 03:57:21,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e917f21fd/faf6e8b79e214c358ea5218988581d67/FLAG59277edde [2019-11-07 03:57:21,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e917f21fd/faf6e8b79e214c358ea5218988581d67 [2019-11-07 03:57:21,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:57:21,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:57:21,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:57:21,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:57:21,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:57:21,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:57:21" (1/1) ... [2019-11-07 03:57:21,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9f0ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:21, skipping insertion in model container [2019-11-07 03:57:21,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:57:21" (1/1) ... [2019-11-07 03:57:21,580 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:57:21,634 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:57:22,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:57:22,085 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:57:22,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:57:22,188 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:57:22,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22 WrapperNode [2019-11-07 03:57:22,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:57:22,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:57:22,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:57:22,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:57:22,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (1/1) ... [2019-11-07 03:57:22,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (1/1) ... [2019-11-07 03:57:22,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (1/1) ... [2019-11-07 03:57:22,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (1/1) ... [2019-11-07 03:57:22,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (1/1) ... [2019-11-07 03:57:22,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (1/1) ... [2019-11-07 03:57:22,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (1/1) ... [2019-11-07 03:57:22,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:57:22,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:57:22,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:57:22,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:57:22,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:57:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:57:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:57:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 03:57:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 03:57:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 03:57:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-07 03:57:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-11-07 03:57:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-11-07 03:57:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_get_data_at [2019-11-07 03:57:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_update_at [2019-11-07 03:57:22,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:57:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:57:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 03:57:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 03:57:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 03:57:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 03:57:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 03:57:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 03:57:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 03:57:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 03:57:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 03:57:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 03:57:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 03:57:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 03:57:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 03:57:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 03:57:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 03:57:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 03:57:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 03:57:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 03:57:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 03:57:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 03:57:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 03:57:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 03:57:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 03:57:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 03:57:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 03:57:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 03:57:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 03:57:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 03:57:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 03:57:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 03:57:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 03:57:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 03:57:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 03:57:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 03:57:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 03:57:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 03:57:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 03:57:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 03:57:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 03:57:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 03:57:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 03:57:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 03:57:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 03:57:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 03:57:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 03:57:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 03:57:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 03:57:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 03:57:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 03:57:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 03:57:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 03:57:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 03:57:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:57:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:57:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 03:57:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:57:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 03:57:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 03:57:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 03:57:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 03:57:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 03:57:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 03:57:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 03:57:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 03:57:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 03:57:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 03:57:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 03:57:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 03:57:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 03:57:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 03:57:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 03:57:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 03:57:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 03:57:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 03:57:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 03:57:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 03:57:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 03:57:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 03:57:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 03:57:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 03:57:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 03:57:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 03:57:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 03:57:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 03:57:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 03:57:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 03:57:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 03:57:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 03:57:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 03:57:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 03:57:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 03:57:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 03:57:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 03:57:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 03:57:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 03:57:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 03:57:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 03:57:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 03:57:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 03:57:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 03:57:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 03:57:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 03:57:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 03:57:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 03:57:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 03:57:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 03:57:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-07 03:57:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:57:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:57:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:57:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-11-07 03:57:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-11-07 03:57:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:57:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:57:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_get_data_at [2019-11-07 03:57:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:57:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_update_at [2019-11-07 03:57:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:57:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:57:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:57:22,725 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 03:57:23,102 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:57:23,103 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-07 03:57:23,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:57:23 BoogieIcfgContainer [2019-11-07 03:57:23,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:57:23,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:57:23,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:57:23,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:57:23,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:57:21" (1/3) ... [2019-11-07 03:57:23,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec49a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:57:23, skipping insertion in model container [2019-11-07 03:57:23,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:22" (2/3) ... [2019-11-07 03:57:23,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec49a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:57:23, skipping insertion in model container [2019-11-07 03:57:23,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:57:23" (3/3) ... [2019-11-07 03:57:23,113 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_update_all_reverse.i [2019-11-07 03:57:23,124 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:57:23,132 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:57:23,145 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:57:23,170 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:57:23,170 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:57:23,170 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:57:23,171 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:57:23,171 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:57:23,171 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:57:23,171 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:57:23,172 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:57:23,191 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-11-07 03:57:23,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-07 03:57:23,198 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:57:23,200 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:57:23,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:57:23,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:57:23,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1316105522, now seen corresponding path program 1 times [2019-11-07 03:57:23,218 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:57:23,219 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173674579] [2019-11-07 03:57:23,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:57:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:23,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:57:23,459 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173674579] [2019-11-07 03:57:23,460 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:57:23,461 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:57:23,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994760069] [2019-11-07 03:57:23,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:57:23,470 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:57:23,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:57:23,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:57:23,489 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2019-11-07 03:57:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:57:23,567 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2019-11-07 03:57:23,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:57:23,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-07 03:57:23,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:57:23,579 INFO L225 Difference]: With dead ends: 76 [2019-11-07 03:57:23,580 INFO L226 Difference]: Without dead ends: 42 [2019-11-07 03:57:23,584 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:57:23,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-07 03:57:23,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2019-11-07 03:57:23,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-07 03:57:23,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2019-11-07 03:57:23,631 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 25 [2019-11-07 03:57:23,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:57:23,632 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2019-11-07 03:57:23,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:57:23,632 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2019-11-07 03:57:23,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-07 03:57:23,634 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:57:23,635 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:57:23,635 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:57:23,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:57:23,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1242296766, now seen corresponding path program 1 times [2019-11-07 03:57:23,636 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:57:23,636 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50944176] [2019-11-07 03:57:23,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:57:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:57:23,904 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50944176] [2019-11-07 03:57:23,905 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771845900] [2019-11-07 03:57:23,905 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 [2019-11-07 03:57:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:24,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 03:57:24,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:57:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:57:24,127 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:57:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:57:24,226 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 03:57:24,227 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [13] total 14 [2019-11-07 03:57:24,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556116294] [2019-11-07 03:57:24,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 03:57:24,232 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:57:24,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 03:57:24,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-07 03:57:24,234 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 6 states. [2019-11-07 03:57:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:57:24,310 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2019-11-07 03:57:24,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 03:57:24,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-11-07 03:57:24,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:57:24,312 INFO L225 Difference]: With dead ends: 55 [2019-11-07 03:57:24,312 INFO L226 Difference]: Without dead ends: 37 [2019-11-07 03:57:24,313 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-11-07 03:57:24,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-07 03:57:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-07 03:57:24,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-07 03:57:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2019-11-07 03:57:24,321 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 31 [2019-11-07 03:57:24,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:57:24,322 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2019-11-07 03:57:24,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 03:57:24,322 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2019-11-07 03:57:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-07 03:57:24,323 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:57:24,324 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:57:24,529 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:57:24,530 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:57:24,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:57:24,531 INFO L82 PathProgramCache]: Analyzing trace with hash 575567927, now seen corresponding path program 1 times [2019-11-07 03:57:24,532 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:57:24,532 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771912029] [2019-11-07 03:57:24,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:57:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:24,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 03:57:24,798 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771912029] [2019-11-07 03:57:24,798 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189404466] [2019-11-07 03:57:24,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:57:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:24,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 03:57:24,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:57:25,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 03:57:25,019 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:57:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 03:57:25,129 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 03:57:25,130 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10] total 12 [2019-11-07 03:57:25,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913329315] [2019-11-07 03:57:25,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 03:57:25,131 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:57:25,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 03:57:25,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-07 03:57:25,133 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 7 states. [2019-11-07 03:57:25,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:57:25,211 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2019-11-07 03:57:25,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 03:57:25,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-07 03:57:25,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:57:25,215 INFO L225 Difference]: With dead ends: 60 [2019-11-07 03:57:25,215 INFO L226 Difference]: Without dead ends: 45 [2019-11-07 03:57:25,216 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-11-07 03:57:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-07 03:57:25,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 38. [2019-11-07 03:57:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-07 03:57:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2019-11-07 03:57:25,225 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 38 [2019-11-07 03:57:25,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:57:25,226 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2019-11-07 03:57:25,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 03:57:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2019-11-07 03:57:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-07 03:57:25,228 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:57:25,228 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:57:25,432 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:57:25,435 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:57:25,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:57:25,440 INFO L82 PathProgramCache]: Analyzing trace with hash 812863416, now seen corresponding path program 1 times [2019-11-07 03:57:25,440 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:57:25,440 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492999937] [2019-11-07 03:57:25,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:57:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 03:57:25,714 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492999937] [2019-11-07 03:57:25,714 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981503794] [2019-11-07 03:57:25,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:57:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:25,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 03:57:25,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:57:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 03:57:25,905 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:57:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 03:57:25,977 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1126564456] [2019-11-07 03:57:26,010 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2019-11-07 03:57:26,011 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 03:57:26,021 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 03:57:26,039 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 03:57:26,041 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 03:57:26,144 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-11-07 03:57:26,240 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 03:57:28,321 INFO L197 IcfgInterpreter]: Interpreting procedure sll_circular_update_at with input of size 15 for LOIs [2019-11-07 03:57:28,371 INFO L197 IcfgInterpreter]: Interpreting procedure sll_circular_create with input of size 33 for LOIs [2019-11-07 03:57:29,752 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 55 for LOIs [2019-11-07 03:57:29,832 INFO L197 IcfgInterpreter]: Interpreting procedure sll_circular_get_data_at with input of size 5 for LOIs [2019-11-07 03:57:29,845 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-11-07 03:57:29,847 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 03:57:30,456 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-11-07 03:57:33,047 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-11-07 03:57:33,397 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2019-11-07 03:57:33,823 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-11-07 03:57:34,781 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 03:57:34,781 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 29] total 41 [2019-11-07 03:57:34,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488249687] [2019-11-07 03:57:34,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-11-07 03:57:34,783 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:57:34,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-11-07 03:57:34,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1517, Unknown=2, NotChecked=0, Total=1640 [2019-11-07 03:57:34,784 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 41 states. [2019-11-07 03:57:42,042 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-11-07 03:57:42,611 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-11-07 03:57:44,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:57:44,868 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2019-11-07 03:57:44,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-11-07 03:57:44,871 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 39 [2019-11-07 03:57:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:57:44,872 INFO L225 Difference]: With dead ends: 62 [2019-11-07 03:57:44,873 INFO L226 Difference]: Without dead ends: 52 [2019-11-07 03:57:44,875 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 86 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1111 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=375, Invalid=4451, Unknown=4, NotChecked=0, Total=4830 [2019-11-07 03:57:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-07 03:57:44,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2019-11-07 03:57:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-07 03:57:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2019-11-07 03:57:44,887 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 39 [2019-11-07 03:57:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:57:44,887 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2019-11-07 03:57:44,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-11-07 03:57:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2019-11-07 03:57:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 03:57:44,889 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:57:44,889 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:57:45,090 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:57:45,090 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:57:45,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:57:45,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1615255240, now seen corresponding path program 1 times [2019-11-07 03:57:45,091 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:57:45,091 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867924161] [2019-11-07 03:57:45,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:57:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:57:46,528 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867924161] [2019-11-07 03:57:46,528 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119809183] [2019-11-07 03:57:46,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:57:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:46,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 104 conjunts are in the unsatisfiable core [2019-11-07 03:57:46,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:57:48,127 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-07 03:57:50,319 WARN L860 $PredicateComparison]: unable to prove that (exists ((sll_circular_update_at_~head.offset Int) (sll_circular_update_at_~data Int)) (let ((.cse0 (+ sll_circular_update_at_~head.offset 4))) (and (<= |c_sll_circular_update_at_#in~head.offset| sll_circular_update_at_~head.offset) (= (store |c_old(#memory_$Pointer$.offset)| |c_sll_circular_update_at_#in~head.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_sll_circular_update_at_#in~head.base|) .cse0 (select (select |c_#memory_$Pointer$.offset| |c_sll_circular_update_at_#in~head.base|) .cse0))) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_sll_circular_update_at_#in~head.base| (store (select |c_old(#memory_$Pointer$.base)| |c_sll_circular_update_at_#in~head.base|) .cse0 (select (select |c_#memory_$Pointer$.base| |c_sll_circular_update_at_#in~head.base|) .cse0)))) (= (store |c_old(#memory_int)| |c_sll_circular_update_at_#in~head.base| (store (select |c_old(#memory_int)| |c_sll_circular_update_at_#in~head.base|) .cse0 sll_circular_update_at_~data)) |c_#memory_int|)))) is different from true [2019-11-07 03:57:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 1 not checked. [2019-11-07 03:57:51,175 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:57:57,126 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 71 [2019-11-07 03:57:57,140 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-11-07 03:57:57,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:57:57,355 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:178) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:83) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-07 03:57:57,365 INFO L168 Benchmark]: Toolchain (without parser) took 35806.00 ms. Allocated memory was 146.8 MB in the beginning and 455.6 MB in the end (delta: 308.8 MB). Free memory was 102.0 MB in the beginning and 391.3 MB in the end (delta: -289.3 MB). Peak memory consumption was 302.7 MB. Max. memory is 7.1 GB. [2019-11-07 03:57:57,365 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-07 03:57:57,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.90 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 169.7 MB in the end (delta: -67.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-11-07 03:57:57,367 INFO L168 Benchmark]: Boogie Preprocessor took 90.94 ms. Allocated memory is still 204.5 MB. Free memory was 169.7 MB in the beginning and 166.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-11-07 03:57:57,368 INFO L168 Benchmark]: RCFGBuilder took 823.80 ms. Allocated memory is still 204.5 MB. Free memory was 166.5 MB in the beginning and 109.5 MB in the end (delta: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. [2019-11-07 03:57:57,369 INFO L168 Benchmark]: TraceAbstraction took 34255.52 ms. Allocated memory was 204.5 MB in the beginning and 455.6 MB in the end (delta: 251.1 MB). Free memory was 109.5 MB in the beginning and 391.3 MB in the end (delta: -281.9 MB). Peak memory consumption was 252.5 MB. Max. memory is 7.1 GB. [2019-11-07 03:57:57,372 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 627.90 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 169.7 MB in the end (delta: -67.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.94 ms. Allocated memory is still 204.5 MB. Free memory was 169.7 MB in the beginning and 166.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 823.80 ms. Allocated memory is still 204.5 MB. Free memory was 166.5 MB in the beginning and 109.5 MB in the end (delta: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34255.52 ms. Allocated memory was 204.5 MB in the beginning and 455.6 MB in the end (delta: 251.1 MB). Free memory was 109.5 MB in the beginning and 391.3 MB in the end (delta: -281.9 MB). Peak memory consumption was 252.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...