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-properties/splice-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:15:01,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:15:01,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:15:01,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:15:01,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:15:01,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:15:01,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:15:01,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:15:01,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:15:01,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:15:01,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:15:01,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:15:01,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:15:01,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:15:01,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:15:01,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:15:01,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:15:01,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:15:01,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:15:01,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:15:01,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:15:01,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:15:01,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:15:01,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:15:01,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:15:01,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:15:01,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:15:01,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:15:01,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:15:01,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:15:01,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:15:01,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:15:01,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:15:01,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:15:01,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:15:01,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:15:01,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:15:01,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:15:01,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:15:01,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:15:01,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:15:01,330 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 [2019-10-07 13:15:01,348 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:15:01,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:15:01,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:15:01,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:15:01,349 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:15:01,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:15:01,350 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:15:01,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:15:01,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:15:01,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:15:01,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:15:01,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:15:01,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:15:01,351 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:15:01,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:15:01,352 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:15:01,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:15:01,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:15:01,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:15:01,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:15:01,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:15:01,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:15:01,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:15:01,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:15:01,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:15:01,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:15:01,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:15:01,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:15:01,354 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 [2019-10-07 13:15:01,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:15:01,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:15:01,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:15:01,657 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:15:01,657 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:15:01,658 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice-2.i [2019-10-07 13:15:01,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512926707/f5489c98afb74945855b79cb27ff8402/FLAGf6974c614 [2019-10-07 13:15:02,241 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:15:02,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/splice-2.i [2019-10-07 13:15:02,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512926707/f5489c98afb74945855b79cb27ff8402/FLAGf6974c614 [2019-10-07 13:15:02,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512926707/f5489c98afb74945855b79cb27ff8402 [2019-10-07 13:15:02,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:15:02,541 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:15:02,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:15:02,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:15:02,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:15:02,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:15:02" (1/1) ... [2019-10-07 13:15:02,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2c5362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:02, skipping insertion in model container [2019-10-07 13:15:02,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:15:02" (1/1) ... [2019-10-07 13:15:02,556 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:15:02,597 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:15:03,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:15:03,038 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:15:03,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:15:03,171 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:15:03,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03 WrapperNode [2019-10-07 13:15:03,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:15:03,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:15:03,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:15:03,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:15:03,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (1/1) ... [2019-10-07 13:15:03,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (1/1) ... [2019-10-07 13:15:03,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (1/1) ... [2019-10-07 13:15:03,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (1/1) ... [2019-10-07 13:15:03,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (1/1) ... [2019-10-07 13:15:03,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (1/1) ... [2019-10-07 13:15:03,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (1/1) ... [2019-10-07 13:15:03,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:15:03,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:15:03,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:15:03,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:15:03,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (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 [2019-10-07 13:15:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:15:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:15:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-07 13:15:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-07 13:15:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-07 13:15:03,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-07 13:15:03,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-07 13:15:03,303 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-07 13:15:03,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:15:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:15:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:15:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-07 13:15:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-07 13:15:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-07 13:15:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-07 13:15:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-07 13:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-07 13:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-07 13:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-07 13:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-07 13:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-07 13:15:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-07 13:15:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-07 13:15:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-07 13:15:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-07 13:15:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-07 13:15:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-07 13:15:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-07 13:15:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-07 13:15:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-07 13:15:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-07 13:15:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-07 13:15:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-07 13:15:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-07 13:15:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-07 13:15:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-07 13:15:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-07 13:15:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-07 13:15:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-07 13:15:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-07 13:15:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-07 13:15:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-07 13:15:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-07 13:15:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-07 13:15:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-07 13:15:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-07 13:15:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-07 13:15:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-07 13:15:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-07 13:15:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-07 13:15:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-07 13:15:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-07 13:15:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-07 13:15:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-07 13:15:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-07 13:15:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-07 13:15:03,315 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-07 13:15:03,316 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-07 13:15:03,316 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-07 13:15:03,316 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-07 13:15:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-07 13:15:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-07 13:15:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-07 13:15:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-07 13:15:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-07 13:15:03,317 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-07 13:15:03,318 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 13:15:03,318 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 13:15:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-07 13:15:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 13:15:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-07 13:15:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-07 13:15:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-07 13:15:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-07 13:15:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-07 13:15:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-07 13:15:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-07 13:15:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-07 13:15:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 13:15:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-07 13:15:03,322 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-07 13:15:03,322 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-07 13:15:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-07 13:15:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-07 13:15:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-07 13:15:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-07 13:15:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-07 13:15:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-07 13:15:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-07 13:15:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-07 13:15:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-07 13:15:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-07 13:15:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-07 13:15:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-07 13:15:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-07 13:15:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-07 13:15:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-07 13:15:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-07 13:15:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-07 13:15:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-07 13:15:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-07 13:15:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-07 13:15:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-07 13:15:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-07 13:15:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-07 13:15:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-07 13:15:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-07 13:15:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-07 13:15:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-07 13:15:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-07 13:15:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-07 13:15:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-07 13:15:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-07 13:15:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-07 13:15:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-07 13:15:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-07 13:15:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-07 13:15:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-07 13:15:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-07 13:15:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:15:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 13:15:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 13:15:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 13:15:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 13:15:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 13:15:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:15:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:15:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 13:15:03,744 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-07 13:15:03,982 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:15:03,982 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 13:15:03,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:15:03 BoogieIcfgContainer [2019-10-07 13:15:03,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:15:03,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:15:03,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:15:03,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:15:03,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:15:02" (1/3) ... [2019-10-07 13:15:03,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18977fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:15:03, skipping insertion in model container [2019-10-07 13:15:03,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:15:03" (2/3) ... [2019-10-07 13:15:03,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18977fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:15:03, skipping insertion in model container [2019-10-07 13:15:03,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:15:03" (3/3) ... [2019-10-07 13:15:03,991 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-10-07 13:15:04,001 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:15:04,007 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:15:04,017 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:15:04,048 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:15:04,048 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:15:04,049 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:15:04,049 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:15:04,049 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:15:04,049 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:15:04,050 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:15:04,050 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:15:04,067 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-10-07 13:15:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-07 13:15:04,074 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:15:04,075 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:15:04,077 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:15:04,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:15:04,083 INFO L82 PathProgramCache]: Analyzing trace with hash -768451905, now seen corresponding path program 1 times [2019-10-07 13:15:04,091 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:15:04,091 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,091 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,092 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:15:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:15:04,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:15:04,239 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,240 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:15:04,240 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 13:15:04,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 13:15:04,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 13:15:04,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 13:15:04,262 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-10-07 13:15:04,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:15:04,299 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2019-10-07 13:15:04,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 13:15:04,301 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-07 13:15:04,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:15:04,312 INFO L225 Difference]: With dead ends: 45 [2019-10-07 13:15:04,312 INFO L226 Difference]: Without dead ends: 22 [2019-10-07 13:15:04,319 INFO L606 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 [2019-10-07 13:15:04,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-07 13:15:04,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-07 13:15:04,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-07 13:15:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-10-07 13:15:04,378 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2019-10-07 13:15:04,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:15:04,379 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-10-07 13:15:04,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 13:15:04,379 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-10-07 13:15:04,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-07 13:15:04,381 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:15:04,381 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:15:04,381 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:15:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:15:04,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1956545429, now seen corresponding path program 1 times [2019-10-07 13:15:04,383 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:15:04,383 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:15:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:15:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:15:04,561 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,561 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:15:04,561 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:15:04,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:15:04,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:15:04,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:15:04,564 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-10-07 13:15:04,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:15:04,632 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-10-07 13:15:04,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:15:04,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-07 13:15:04,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:15:04,633 INFO L225 Difference]: With dead ends: 40 [2019-10-07 13:15:04,633 INFO L226 Difference]: Without dead ends: 29 [2019-10-07 13:15:04,634 INFO L606 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 [2019-10-07 13:15:04,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-07 13:15:04,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2019-10-07 13:15:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-07 13:15:04,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-10-07 13:15:04,640 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 17 [2019-10-07 13:15:04,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:15:04,640 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-10-07 13:15:04,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:15:04,641 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-10-07 13:15:04,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-07 13:15:04,642 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:15:04,642 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:15:04,642 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:15:04,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:15:04,642 INFO L82 PathProgramCache]: Analyzing trace with hash 247782988, now seen corresponding path program 1 times [2019-10-07 13:15:04,643 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:15:04,643 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:15:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:15:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 13:15:04,765 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,765 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:15:04,766 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:15:04,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:15:04,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:15:04,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:15:04,767 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 4 states. [2019-10-07 13:15:04,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:15:04,822 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2019-10-07 13:15:04,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:15:04,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-10-07 13:15:04,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:15:04,824 INFO L225 Difference]: With dead ends: 38 [2019-10-07 13:15:04,824 INFO L226 Difference]: Without dead ends: 32 [2019-10-07 13:15:04,824 INFO L606 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 [2019-10-07 13:15:04,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-07 13:15:04,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2019-10-07 13:15:04,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-07 13:15:04,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-10-07 13:15:04,830 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 21 [2019-10-07 13:15:04,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:15:04,830 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-10-07 13:15:04,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:15:04,831 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-10-07 13:15:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-07 13:15:04,832 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:15:04,832 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:15:04,832 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:15:04,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:15:04,832 INFO L82 PathProgramCache]: Analyzing trace with hash -907009150, now seen corresponding path program 1 times [2019-10-07 13:15:04,833 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:15:04,833 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,833 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,833 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:15:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:15:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 13:15:04,887 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,887 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:15:04,888 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:15:04,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:15:04,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:15:04,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:15:04,889 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 4 states. [2019-10-07 13:15:04,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:15:04,938 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2019-10-07 13:15:04,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:15:04,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-10-07 13:15:04,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:15:04,940 INFO L225 Difference]: With dead ends: 33 [2019-10-07 13:15:04,940 INFO L226 Difference]: Without dead ends: 26 [2019-10-07 13:15:04,940 INFO L606 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 [2019-10-07 13:15:04,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-07 13:15:04,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-07 13:15:04,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-07 13:15:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-10-07 13:15:04,945 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 22 [2019-10-07 13:15:04,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:15:04,945 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-10-07 13:15:04,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:15:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-10-07 13:15:04,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-07 13:15:04,946 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:15:04,947 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:15:04,947 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:15:04,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:15:04,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1952847741, now seen corresponding path program 1 times [2019-10-07 13:15:04,947 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:15:04,947 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:04,948 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,948 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:15:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:15:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:15:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:15:05,221 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:15:05,221 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:15:05,222 INFO L95 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 [2019-10-07 13:15:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:15:05,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 39 conjunts are in the unsatisfiable core [2019-10-07 13:15:05,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:15:05,443 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 [2019-10-07 13:15:05,444 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,451 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,452 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,452 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-10-07 13:15:05,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:05,547 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,547 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-07 13:15:05,548 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,571 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,580 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,596 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,602 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 1 [2019-10-07 13:15:05,603 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,612 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,617 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-10-07 13:15:05,617 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,634 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,634 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_30| vanished before elimination [2019-10-07 13:15:05,634 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,635 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:61, output treesize:21 [2019-10-07 13:15:05,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-07 13:15:05,665 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2019-10-07 13:15:05,666 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,673 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,673 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,674 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:15 [2019-10-07 13:15:05,709 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 19 treesize of output 18 [2019-10-07 13:15:05,710 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,721 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,723 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-07 13:15:05,723 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:22 [2019-10-07 13:15:05,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:05,874 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2019-10-07 13:15:05,875 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,883 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,884 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-07 13:15:05,885 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:22 [2019-10-07 13:15:05,969 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-10-07 13:15:05,970 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,976 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:05,977 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 13:15:05,977 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:26, output treesize:3 [2019-10-07 13:15:05,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:15:05,983 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:15:05,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:06,014 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:15:06,036 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:06,040 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:15:06,058 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:06,059 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2019-10-07 13:15:06,059 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:64, output treesize:39 [2019-10-07 13:15:09,878 WARN L191 SmtUtils]: Spent 2.96 s on a formula simplification that was a NOOP. DAG size: 28 [2019-10-07 13:15:09,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:09,960 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:15:09,965 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:09,966 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-07 13:15:09,966 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:40 [2019-10-07 13:15:10,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,068 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 88 treesize of output 72 [2019-10-07 13:15:10,069 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:10,116 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:10,123 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:10,162 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:10,170 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 72 treesize of output 56 [2019-10-07 13:15:10,171 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:10,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:10,202 INFO L464 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2019-10-07 13:15:10,211 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 57 [2019-10-07 13:15:10,212 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-07 13:15:10,237 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:10,237 INFO L464 ElimStorePlain]: Eliminatee v_prenex_12 vanished before elimination [2019-10-07 13:15:10,238 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_35| vanished before elimination [2019-10-07 13:15:10,238 INFO L464 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2019-10-07 13:15:10,243 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-07 13:15:10,297 INFO L341 Elim1Store]: treesize reduction 34, result has 59.0 percent of original size [2019-10-07 13:15:10,298 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 70 [2019-10-07 13:15:10,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,338 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:15:10,339 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 77 [2019-10-07 13:15:10,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,343 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,350 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:15:10,374 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-07 13:15:10,375 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-07 13:15:10,376 INFO L392 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9, v_arrayElimCell_10], 1=[v_arrayElimCell_11]} [2019-10-07 13:15:10,579 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:15:10,581 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: This case should habe been handled by DER at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.(DerPreprocessor.java:95) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:291) 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.doElimOneRec(ElimStorePlain.java:256) 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.doElimOneRec(ElimStorePlain.java:256) 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:336) 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:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) 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) [2019-10-07 13:15:10,586 INFO L168 Benchmark]: Toolchain (without parser) took 8045.25 ms. Allocated memory was 143.7 MB in the beginning and 251.7 MB in the end (delta: 108.0 MB). Free memory was 98.9 MB in the beginning and 121.4 MB in the end (delta: -22.5 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:15:10,587 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:15:10,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.68 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.7 MB in the beginning and 166.9 MB in the end (delta: -68.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:15:10,589 INFO L168 Benchmark]: Boogie Preprocessor took 75.23 ms. Allocated memory is still 201.3 MB. Free memory was 166.9 MB in the beginning and 164.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:15:10,589 INFO L168 Benchmark]: RCFGBuilder took 734.49 ms. Allocated memory is still 201.3 MB. Free memory was 164.2 MB in the beginning and 108.7 MB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:15:10,590 INFO L168 Benchmark]: TraceAbstraction took 6599.73 ms. Allocated memory was 201.3 MB in the beginning and 251.7 MB in the end (delta: 50.3 MB). Free memory was 108.7 MB in the beginning and 121.4 MB in the end (delta: -12.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:15:10,597 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 631.68 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.7 MB in the beginning and 166.9 MB in the end (delta: -68.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.23 ms. Allocated memory is still 201.3 MB. Free memory was 166.9 MB in the beginning and 164.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 734.49 ms. Allocated memory is still 201.3 MB. Free memory was 164.2 MB in the beginning and 108.7 MB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6599.73 ms. Allocated memory was 201.3 MB in the beginning and 251.7 MB in the end (delta: 50.3 MB). Free memory was 108.7 MB in the beginning and 121.4 MB in the end (delta: -12.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: This case should habe been handled by DER: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...