/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-properties/splice-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:55:28,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:55:28,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:55:28,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:55:28,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:55:28,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:55:28,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:55:28,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:55:28,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:55:28,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:55:28,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:55:28,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:55:28,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:55:28,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:55:28,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:55:28,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:55:28,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:55:28,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:55:28,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:55:28,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:55:28,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:55:28,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:55:28,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:55:28,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:55:28,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:55:28,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:55:28,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:55:28,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:55:28,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:55:28,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:55:28,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:55:28,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:55:28,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:55:28,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:55:28,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:55:28,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:55:28,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:55:28,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:55:28,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:55:28,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:55:28,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:55:28,724 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 03:55:28,756 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:55:28,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:55:28,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:55:28,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:55:28,758 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:55:28,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:55:28,759 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:55:28,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:55:28,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:55:28,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:55:28,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:55:28,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:55:28,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:55:28,764 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:55:28,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:55:28,765 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:55:28,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:55:28,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:55:28,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:55:28,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:55:28,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:55:28,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:55:28,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:55:28,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:55:28,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:55:28,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:55:28,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:55:28,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:55:28,768 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 03:55:29,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:55:29,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:55:29,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:55:29,091 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:55:29,091 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:55:29,092 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice-2.i [2019-11-07 03:55:29,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28a790d0/d966fc020fc64e94991662f0b6f24e69/FLAGc0906c4df [2019-11-07 03:55:29,736 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:55:29,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/splice-2.i [2019-11-07 03:55:29,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28a790d0/d966fc020fc64e94991662f0b6f24e69/FLAGc0906c4df [2019-11-07 03:55:30,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28a790d0/d966fc020fc64e94991662f0b6f24e69 [2019-11-07 03:55:30,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:55:30,059 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:55:30,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:55:30,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:55:30,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:55:30,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54af90c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30, skipping insertion in model container [2019-11-07 03:55:30,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,093 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:55:30,157 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:55:30,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:55:30,656 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:55:30,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:55:30,788 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:55:30,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30 WrapperNode [2019-11-07 03:55:30,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:55:30,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:55:30,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:55:30,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:55:30,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (1/1) ... [2019-11-07 03:55:30,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:55:30,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:55:30,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:55:30,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:55:30,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (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 03:55:30,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:55:30,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:55:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 03:55:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 03:55:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-07 03:55:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-07 03:55:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-07 03:55:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 03:55:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:55:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:55:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 03:55:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 03:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 03:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 03:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 03:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 03:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 03:55:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 03:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 03:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 03:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 03:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 03:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 03:55:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 03:55:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 03:55:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 03:55:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 03:55:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 03:55:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 03:55:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-07 03:55:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-07 03:55:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-07 03:55:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 03:55:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 03:55:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 03:55:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 03:55:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 03:55:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 03:55:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 03:55:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 03:55:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 03:55:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 03:55:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 03:55:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 03:55:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 03:55:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 03:55:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 03:55:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 03:55:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 03:55:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 03:55:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 03:55:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 03:55:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 03:55:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 03:55:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 03:55:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 03:55:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 03:55:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 03:55:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 03:55:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 03:55:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 03:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 03:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 03:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 03:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 03:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 03:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 03:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 03:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 03:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 03:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 03:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 03:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 03:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 03:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 03:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 03:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 03:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 03:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 03:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 03:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 03:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 03:55:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 03:55:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 03:55:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 03:55:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 03:55:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 03:55:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 03:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 03:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 03:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 03:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 03:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 03:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 03:55:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 03:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 03:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 03:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 03:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 03:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 03:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 03:55:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 03:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 03:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 03:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 03:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 03:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 03:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 03:55:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 03:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 03:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 03:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 03:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 03:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 03:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 03:55:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 03:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:55:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:55:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:55:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:55:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:55:31,282 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 03:55:31,624 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:55:31,624 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 03:55:31,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:31 BoogieIcfgContainer [2019-11-07 03:55:31,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:55:31,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:55:31,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:55:31,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:55:31,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:55:30" (1/3) ... [2019-11-07 03:55:31,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac5c668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:31, skipping insertion in model container [2019-11-07 03:55:31,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:30" (2/3) ... [2019-11-07 03:55:31,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac5c668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:31, skipping insertion in model container [2019-11-07 03:55:31,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:31" (3/3) ... [2019-11-07 03:55:31,634 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-11-07 03:55:31,644 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:55:31,652 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:55:31,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:55:31,695 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:55:31,696 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:55:31,696 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:55:31,696 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:55:31,697 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:55:31,697 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:55:31,697 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:55:31,697 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:55:31,712 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-07 03:55:31,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-07 03:55:31,718 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:55:31,719 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:55:31,721 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:55:31,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:55:31,727 INFO L82 PathProgramCache]: Analyzing trace with hash -768451905, now seen corresponding path program 1 times [2019-11-07 03:55:31,737 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:55:31,738 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833974228] [2019-11-07 03:55:31,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:55:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:31,880 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 03:55:31,881 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833974228] [2019-11-07 03:55:31,882 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:55:31,882 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 03:55:31,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269128996] [2019-11-07 03:55:31,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 03:55:31,888 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:55:31,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 03:55:31,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 03:55:31,906 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-07 03:55:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:55:31,928 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2019-11-07 03:55:31,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 03:55:31,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-11-07 03:55:31,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:55:31,939 INFO L225 Difference]: With dead ends: 45 [2019-11-07 03:55:31,939 INFO L226 Difference]: Without dead ends: 22 [2019-11-07 03:55:31,943 INFO L630 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 [2019-11-07 03:55:31,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-07 03:55:32,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-07 03:55:32,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-07 03:55:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-07 03:55:32,006 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2019-11-07 03:55:32,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:55:32,006 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-07 03:55:32,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 03:55:32,006 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-07 03:55:32,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-07 03:55:32,007 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:55:32,007 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:55:32,008 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:55:32,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:55:32,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1956545429, now seen corresponding path program 1 times [2019-11-07 03:55:32,008 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:55:32,009 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280993322] [2019-11-07 03:55:32,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:55:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:32,115 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 03:55:32,115 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280993322] [2019-11-07 03:55:32,115 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:55:32,115 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:55:32,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301419534] [2019-11-07 03:55:32,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:55:32,118 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:55:32,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:55:32,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:55:32,118 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-11-07 03:55:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:55:32,191 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-11-07 03:55:32,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:55:32,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-07 03:55:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:55:32,193 INFO L225 Difference]: With dead ends: 40 [2019-11-07 03:55:32,193 INFO L226 Difference]: Without dead ends: 29 [2019-11-07 03:55:32,195 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 03:55:32,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-07 03:55:32,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2019-11-07 03:55:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-07 03:55:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-11-07 03:55:32,201 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 17 [2019-11-07 03:55:32,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:55:32,201 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-07 03:55:32,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:55:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-11-07 03:55:32,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-07 03:55:32,202 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:55:32,202 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:55:32,203 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:55:32,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:55:32,203 INFO L82 PathProgramCache]: Analyzing trace with hash 247782988, now seen corresponding path program 1 times [2019-11-07 03:55:32,203 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:55:32,204 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401437790] [2019-11-07 03:55:32,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:55:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 03:55:32,299 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401437790] [2019-11-07 03:55:32,300 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:55:32,300 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:55:32,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540790149] [2019-11-07 03:55:32,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:55:32,301 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:55:32,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:55:32,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:55:32,302 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 4 states. [2019-11-07 03:55:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:55:32,360 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2019-11-07 03:55:32,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:55:32,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-11-07 03:55:32,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:55:32,362 INFO L225 Difference]: With dead ends: 38 [2019-11-07 03:55:32,362 INFO L226 Difference]: Without dead ends: 32 [2019-11-07 03:55:32,363 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 03:55:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-07 03:55:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2019-11-07 03:55:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-07 03:55:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-11-07 03:55:32,368 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 21 [2019-11-07 03:55:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:55:32,369 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-11-07 03:55:32,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:55:32,369 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-11-07 03:55:32,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-07 03:55:32,370 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:55:32,370 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:55:32,370 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:55:32,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:55:32,371 INFO L82 PathProgramCache]: Analyzing trace with hash -907009150, now seen corresponding path program 1 times [2019-11-07 03:55:32,373 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:55:32,375 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610375834] [2019-11-07 03:55:32,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:55:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:32,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 03:55:32,472 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610375834] [2019-11-07 03:55:32,472 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:55:32,474 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:55:32,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605884040] [2019-11-07 03:55:32,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:55:32,474 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:55:32,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:55:32,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:55:32,475 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 4 states. [2019-11-07 03:55:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:55:32,538 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2019-11-07 03:55:32,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:55:32,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-11-07 03:55:32,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:55:32,540 INFO L225 Difference]: With dead ends: 33 [2019-11-07 03:55:32,541 INFO L226 Difference]: Without dead ends: 26 [2019-11-07 03:55:32,543 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 03:55:32,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-07 03:55:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-07 03:55:32,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-07 03:55:32,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-11-07 03:55:32,551 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 22 [2019-11-07 03:55:32,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:55:32,551 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-11-07 03:55:32,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:55:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-11-07 03:55:32,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-07 03:55:32,552 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:55:32,552 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:55:32,553 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:55:32,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:55:32,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1952847741, now seen corresponding path program 1 times [2019-11-07 03:55:32,558 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:55:32,559 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282604446] [2019-11-07 03:55:32,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:55:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:55:32,836 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282604446] [2019-11-07 03:55:32,837 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235061034] [2019-11-07 03:55:32,837 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 03:55:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:32,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 39 conjunts are in the unsatisfiable core [2019-11-07 03:55:32,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:55:33,034 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 [2019-11-07 03:55:33,035 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,043 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,044 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,044 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-07 03:55:33,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:33,124 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,125 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 [2019-11-07 03:55:33,126 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,149 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,158 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,182 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,188 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 [2019-11-07 03:55:33,188 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,209 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 [2019-11-07 03:55:33,210 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,233 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,233 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_30| vanished before elimination [2019-11-07 03:55:33,234 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,234 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:61, output treesize:21 [2019-11-07 03:55:33,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 03:55:33,291 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 [2019-11-07 03:55:33,292 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,299 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,300 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,300 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:15 [2019-11-07 03:55:33,338 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 [2019-11-07 03:55:33,339 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,352 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,353 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. [2019-11-07 03:55:33,354 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:22 [2019-11-07 03:55:33,436 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:33,448 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 [2019-11-07 03:55:33,449 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,461 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,462 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. [2019-11-07 03:55:33,462 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:22 [2019-11-07 03:55:33,551 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 [2019-11-07 03:55:33,551 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,557 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,558 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:55:33,558 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:26, output treesize:3 [2019-11-07 03:55:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:55:33,566 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:55:33,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:33,613 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:55:33,635 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,639 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:55:33,654 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:33,656 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. [2019-11-07 03:55:33,656 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:64, output treesize:39 [2019-11-07 03:55:37,618 WARN L191 SmtUtils]: Spent 2.99 s on a formula simplification that was a NOOP. DAG size: 28 [2019-11-07 03:55:37,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:37,718 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:55:37,722 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:37,723 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. [2019-11-07 03:55:37,723 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:40 [2019-11-07 03:55:37,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:37,812 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 [2019-11-07 03:55:37,812 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:37,869 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:37,875 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:37,922 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:37,931 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 [2019-11-07 03:55:37,932 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:37,968 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:37,968 INFO L464 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2019-11-07 03:55:37,978 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 57 [2019-11-07 03:55:37,978 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:38,007 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:38,007 INFO L464 ElimStorePlain]: Eliminatee v_prenex_12 vanished before elimination [2019-11-07 03:55:38,007 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_35| vanished before elimination [2019-11-07 03:55:38,008 INFO L464 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2019-11-07 03:55:38,016 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-07 03:55:38,095 INFO L341 Elim1Store]: treesize reduction 34, result has 59.0 percent of original size [2019-11-07 03:55:38,096 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 [2019-11-07 03:55:38,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,136 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:38,136 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 [2019-11-07 03:55:38,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,142 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,151 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,153 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,157 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,161 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:38,171 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-07 03:55:38,172 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-07 03:55:38,173 INFO L392 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9, v_arrayElimCell_10], 1=[v_arrayElimCell_11]} [2019-11-07 03:55:38,376 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:55:38,377 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: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 03:55:38,384 INFO L168 Benchmark]: Toolchain (without parser) took 8324.91 ms. Allocated memory was 146.3 MB in the beginning and 245.4 MB in the end (delta: 99.1 MB). Free memory was 102.6 MB in the beginning and 106.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 95.2 MB. Max. memory is 7.1 GB. [2019-11-07 03:55:38,385 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 03:55:38,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.54 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 102.4 MB in the beginning and 170.4 MB in the end (delta: -67.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-11-07 03:55:38,386 INFO L168 Benchmark]: Boogie Preprocessor took 76.00 ms. Allocated memory is still 205.0 MB. Free memory was 170.4 MB in the beginning and 167.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-11-07 03:55:38,387 INFO L168 Benchmark]: RCFGBuilder took 760.23 ms. Allocated memory is still 205.0 MB. Free memory was 167.8 MB in the beginning and 113.0 MB in the end (delta: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2019-11-07 03:55:38,388 INFO L168 Benchmark]: TraceAbstraction took 6754.93 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 112.3 MB in the beginning and 106.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2019-11-07 03:55:38,394 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.54 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 102.4 MB in the beginning and 170.4 MB in the end (delta: -67.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.00 ms. Allocated memory is still 205.0 MB. Free memory was 170.4 MB in the beginning and 167.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 760.23 ms. Allocated memory is still 205.0 MB. Free memory was 167.8 MB in the beginning and 113.0 MB in the end (delta: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6754.93 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 112.3 MB in the beginning and 106.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 46.2 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...