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/heap-data/min_max.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 03:52:34,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 03:52:34,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 03:52:34,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 03:52:34,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 03:52:34,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 03:52:34,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 03:52:34,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 03:52:34,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 03:52:34,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 03:52:34,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 03:52:34,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 03:52:34,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 03:52:34,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 03:52:34,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 03:52:34,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 03:52:34,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 03:52:34,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 03:52:34,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 03:52:34,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 03:52:34,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 03:52:34,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 03:52:34,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 03:52:34,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 03:52:34,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 03:52:34,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 03:52:34,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 03:52:34,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 03:52:34,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 03:52:34,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 03:52:34,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 03:52:34,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 03:52:34,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 03:52:34,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 03:52:34,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 03:52:34,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 03:52:34,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 03:52:34,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 03:52:34,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 03:52:34,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 03:52:34,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 03:52:34,692 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 03:52:34,716 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 03:52:34,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 03:52:34,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 03:52:34,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 03:52:34,719 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 03:52:34,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 03:52:34,720 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 03:52:34,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 03:52:34,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 03:52:34,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 03:52:34,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 03:52:34,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 03:52:34,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 03:52:34,723 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 03:52:34,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 03:52:34,723 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 03:52:34,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 03:52:34,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 03:52:34,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 03:52:34,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 03:52:34,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 03:52:34,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 03:52:34,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 03:52:34,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 03:52:34,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 03:52:34,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 03:52:34,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 03:52:34,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 03:52:34,726 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 03:52:35,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 03:52:35,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 03:52:35,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 03:52:35,021 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 03:52:35,021 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 03:52:35,022 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/min_max.i [2019-10-07 03:52:35,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/450c2d6cf/e05a53f92fe5480bb8d2fe7b18b7bb9c/FLAG40564c539 [2019-10-07 03:52:35,737 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 03:52:35,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/min_max.i [2019-10-07 03:52:35,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/450c2d6cf/e05a53f92fe5480bb8d2fe7b18b7bb9c/FLAG40564c539 [2019-10-07 03:52:35,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/450c2d6cf/e05a53f92fe5480bb8d2fe7b18b7bb9c [2019-10-07 03:52:35,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 03:52:35,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 03:52:35,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 03:52:35,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 03:52:35,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 03:52:35,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:52:35" (1/1) ... [2019-10-07 03:52:35,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34519ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:35, skipping insertion in model container [2019-10-07 03:52:35,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:52:35" (1/1) ... [2019-10-07 03:52:35,996 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 03:52:36,057 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 03:52:36,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:52:36,543 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 03:52:36,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:52:36,659 INFO L192 MainTranslator]: Completed translation [2019-10-07 03:52:36,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36 WrapperNode [2019-10-07 03:52:36,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 03:52:36,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 03:52:36,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 03:52:36,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 03:52:36,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (1/1) ... [2019-10-07 03:52:36,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (1/1) ... [2019-10-07 03:52:36,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (1/1) ... [2019-10-07 03:52:36,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (1/1) ... [2019-10-07 03:52:36,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (1/1) ... [2019-10-07 03:52:36,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (1/1) ... [2019-10-07 03:52:36,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (1/1) ... [2019-10-07 03:52:36,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 03:52:36,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 03:52:36,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 03:52:36,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 03:52:36,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (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 03:52:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 03:52:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 03:52:36,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-07 03:52:36,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-07 03:52:36,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 03:52:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 03:52:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 03:52:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-07 03:52:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-07 03:52:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-07 03:52:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-07 03:52:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-07 03:52:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-07 03:52:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-07 03:52:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-07 03:52:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-07 03:52:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-07 03:52:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-07 03:52:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-07 03:52:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-07 03:52:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-07 03:52:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-07 03:52:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-07 03:52:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-07 03:52:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-07 03:52:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-07 03:52:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-07 03:52:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-07 03:52:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-07 03:52:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-07 03:52:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-07 03:52:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-07 03:52:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-07 03:52:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-07 03:52:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-07 03:52:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-07 03:52:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-07 03:52:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-07 03:52:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-07 03:52:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-07 03:52:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-07 03:52:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-07 03:52:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-07 03:52:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-07 03:52:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-07 03:52:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-07 03:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-07 03:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-07 03:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-07 03:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-07 03:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 03:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 03:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-07 03:52:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 03:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-07 03:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-07 03:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-07 03:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-07 03:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-07 03:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-07 03:52:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-07 03:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-07 03:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-07 03:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 03:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-07 03:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-07 03:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-07 03:52:36,794 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-07 03:52:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-07 03:52:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-07 03:52:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-07 03:52:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-07 03:52:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-07 03:52:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-07 03:52:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-07 03:52:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-07 03:52:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-07 03:52:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-07 03:52:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-07 03:52:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-07 03:52:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-07 03:52:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-07 03:52:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-07 03:52:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-07 03:52:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-07 03:52:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-07 03:52:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-07 03:52:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-07 03:52:36,798 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 03:52:36,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 03:52:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 03:52:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 03:52:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 03:52:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 03:52:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 03:52:37,447 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 03:52:37,447 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-07 03:52:37,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:52:37 BoogieIcfgContainer [2019-10-07 03:52:37,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 03:52:37,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 03:52:37,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 03:52:37,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 03:52:37,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:52:35" (1/3) ... [2019-10-07 03:52:37,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d42c913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:52:37, skipping insertion in model container [2019-10-07 03:52:37,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:52:36" (2/3) ... [2019-10-07 03:52:37,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d42c913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:52:37, skipping insertion in model container [2019-10-07 03:52:37,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:52:37" (3/3) ... [2019-10-07 03:52:37,458 INFO L109 eAbstractionObserver]: Analyzing ICFG min_max.i [2019-10-07 03:52:37,468 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 03:52:37,475 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-07 03:52:37,487 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-07 03:52:37,512 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 03:52:37,512 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 03:52:37,513 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 03:52:37,513 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 03:52:37,513 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 03:52:37,513 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 03:52:37,513 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 03:52:37,514 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 03:52:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-07 03:52:37,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 03:52:37,534 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:37,535 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:37,537 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:37,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:37,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1429863863, now seen corresponding path program 1 times [2019-10-07 03:52:37,551 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:37,552 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:37,552 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:37,552 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:37,691 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 03:52:37,691 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:37,692 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:52:37,693 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 03:52:37,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 03:52:37,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 03:52:37,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 03:52:37,711 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-10-07 03:52:37,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:52:37,732 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-10-07 03:52:37,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 03:52:37,733 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-07 03:52:37,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:52:37,742 INFO L225 Difference]: With dead ends: 33 [2019-10-07 03:52:37,742 INFO L226 Difference]: Without dead ends: 17 [2019-10-07 03:52:37,745 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 03:52:37,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-07 03:52:37,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-07 03:52:37,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-07 03:52:37,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-10-07 03:52:37,778 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10 [2019-10-07 03:52:37,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:52:37,779 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-10-07 03:52:37,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 03:52:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-10-07 03:52:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 03:52:37,780 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:37,780 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:37,780 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:37,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:37,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1966507701, now seen corresponding path program 1 times [2019-10-07 03:52:37,781 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:37,781 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:37,781 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:37,781 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:37,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:37,888 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 03:52:37,888 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:37,888 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:52:37,888 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 03:52:37,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 03:52:37,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 03:52:37,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 03:52:37,891 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-10-07 03:52:37,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:52:37,944 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-10-07 03:52:37,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 03:52:37,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-07 03:52:37,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:52:37,946 INFO L225 Difference]: With dead ends: 30 [2019-10-07 03:52:37,947 INFO L226 Difference]: Without dead ends: 19 [2019-10-07 03:52:37,948 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 03:52:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-07 03:52:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-07 03:52:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-07 03:52:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-10-07 03:52:37,954 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2019-10-07 03:52:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:52:37,954 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-10-07 03:52:37,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 03:52:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-10-07 03:52:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 03:52:37,955 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:37,955 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:37,956 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:37,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1351145807, now seen corresponding path program 1 times [2019-10-07 03:52:37,956 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:37,957 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:37,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:37,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:38,206 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:38,206 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:52:38,206 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 03:52:38,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 03:52:38,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 03:52:38,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 03:52:38,207 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2019-10-07 03:52:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:52:38,313 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-10-07 03:52:38,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 03:52:38,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-07 03:52:38,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:52:38,314 INFO L225 Difference]: With dead ends: 28 [2019-10-07 03:52:38,315 INFO L226 Difference]: Without dead ends: 26 [2019-10-07 03:52:38,315 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 03:52:38,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-07 03:52:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2019-10-07 03:52:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-07 03:52:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-10-07 03:52:38,321 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 13 [2019-10-07 03:52:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:52:38,321 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-10-07 03:52:38,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 03:52:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-10-07 03:52:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-07 03:52:38,322 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:38,322 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:38,322 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:38,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:38,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1370871501, now seen corresponding path program 1 times [2019-10-07 03:52:38,323 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:38,323 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:38,323 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:38,324 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:38,577 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:38,577 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:52:38,577 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 03:52:38,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 03:52:38,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 03:52:38,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 03:52:38,580 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2019-10-07 03:52:38,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:52:38,725 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-10-07 03:52:38,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 03:52:38,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-10-07 03:52:38,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:52:38,729 INFO L225 Difference]: With dead ends: 26 [2019-10-07 03:52:38,729 INFO L226 Difference]: Without dead ends: 24 [2019-10-07 03:52:38,730 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-10-07 03:52:38,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-07 03:52:38,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-10-07 03:52:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-07 03:52:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-10-07 03:52:38,737 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 15 [2019-10-07 03:52:38,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:52:38,738 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-10-07 03:52:38,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 03:52:38,738 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-10-07 03:52:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-07 03:52:38,739 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:52:38,740 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:52:38,740 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:52:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:52:38,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1215014229, now seen corresponding path program 1 times [2019-10-07 03:52:38,740 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:52:38,741 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:38,741 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:38,741 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:52:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:52:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:38,897 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:52:38,897 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:52:38,898 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 03:52:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:52:39,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-07 03:52:39,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:52:39,122 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 03:52:39,122 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 03:52:39,136 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:52:39,143 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 03:52:39,143 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 03:52:39,148 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:52:39,149 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 03:52:39,149 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2019-10-07 03:52:39,170 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-07 03:52:39,171 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 03:52:39,180 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:52:39,184 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-07 03:52:39,185 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 03:52:39,192 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:52:39,192 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 03:52:39,193 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-10-07 03:52:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:39,197 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:52:39,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:52:39,225 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:52:39,275 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-07 03:52:39,275 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:52:39,284 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:52:39,299 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:52:39,299 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:52:39,450 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 03:52:40,483 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 1231 [2019-10-07 03:52:40,789 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 03:52:41,081 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 1223 [2019-10-07 03:52:41,282 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 03:52:41,477 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 03:52:41,712 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 03:52:43,962 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 1207 [2019-10-07 03:52:44,142 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 1203 [2019-10-07 03:52:59,809 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 1159 [2019-10-07 03:54:01,617 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 03:54:01,621 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 03:54:01,622 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 03:54:01,622 INFO L193 IcfgInterpreter]: Reachable states at location L577 satisfy 187#true [2019-10-07 03:54:01,622 INFO L193 IcfgInterpreter]: Reachable states at location L579-2 satisfy 136#(<= (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~max~0) [2019-10-07 03:54:01,623 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 191#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:54:01,623 INFO L193 IcfgInterpreter]: Reachable states at location L578 satisfy 182#(exists ((v_main_~i~0.offset_14 Int) (v_main_~i~0.base_14 Int)) (or (and (not (= 0 main_~i~0.base)) (= main_~i~0.offset (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_14) v_main_~i~0.offset_14)) (< (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~min~0) (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_14) v_main_~i~0.offset_14) main_~i~0.base) (<= (select (select |#memory_int| v_main_~i~0.base_14) (+ v_main_~i~0.offset_14 4)) main_~max~0)) (and (= main_~i~0.base main_~l~0.base) (< (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~min~0) (not (= 0 main_~i~0.offset)) (= main_~l~0.offset main_~i~0.offset)) (and (= main_~i~0.offset (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_14) v_main_~i~0.offset_14)) (< (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~min~0) (not (= 0 main_~i~0.offset)) (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_14) v_main_~i~0.offset_14) main_~i~0.base) (<= (select (select |#memory_int| v_main_~i~0.base_14) (+ v_main_~i~0.offset_14 4)) main_~max~0)) (and (not (= 0 main_~i~0.base)) (= main_~i~0.base main_~l~0.base) (< (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~min~0) (= main_~l~0.offset main_~i~0.offset)))) [2019-10-07 03:54:01,623 INFO L193 IcfgInterpreter]: Reachable states at location L579 satisfy 131#(= |main_#t~mem10| (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4))) [2019-10-07 03:54:01,623 INFO L193 IcfgInterpreter]: Reachable states at location L571-2 satisfy 71#true [2019-10-07 03:54:01,623 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:54:01,624 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 03:54:01,624 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 196#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 03:54:01,624 INFO L193 IcfgInterpreter]: Reachable states at location L564-3 satisfy 81#true [2019-10-07 03:54:01,624 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 03:54:01,625 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 172#(exists ((v_main_~i~0.offset_14 Int) (v_main_~i~0.base_14 Int)) (or (and (not (= 0 main_~i~0.base)) (= main_~i~0.offset (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_14) v_main_~i~0.offset_14)) (< (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~min~0) (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_14) v_main_~i~0.offset_14) main_~i~0.base) (<= (select (select |#memory_int| v_main_~i~0.base_14) (+ v_main_~i~0.offset_14 4)) main_~max~0)) (and (= main_~i~0.base main_~l~0.base) (< (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~min~0) (not (= 0 main_~i~0.offset)) (= main_~l~0.offset main_~i~0.offset)) (and (= main_~i~0.offset (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_14) v_main_~i~0.offset_14)) (< (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~min~0) (not (= 0 main_~i~0.offset)) (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_14) v_main_~i~0.offset_14) main_~i~0.base) (<= (select (select |#memory_int| v_main_~i~0.base_14) (+ v_main_~i~0.offset_14 4)) main_~max~0)) (and (not (= 0 main_~i~0.base)) (= main_~i~0.base main_~l~0.base) (< (select (select |#memory_int| main_~i~0.base) (+ main_~i~0.offset 4)) main_~min~0) (= main_~l~0.offset main_~i~0.offset)))) [2019-10-07 03:54:01,625 INFO L193 IcfgInterpreter]: Reachable states at location L564-1 satisfy 76#(and (<= 0 (+ |main_#t~nondet2| 2147483648)) (<= |main_#t~nondet2| 2147483647)) [2019-10-07 03:54:01,625 INFO L193 IcfgInterpreter]: Reachable states at location L576-2 satisfy 141#(or (and (= main_~i~0.base main_~l~0.base) (= main_~l~0.offset main_~i~0.offset)) (exists ((v_main_~i~0.offset_14 Int) (v_main_~i~0.base_14 Int)) (and (= main_~i~0.offset (select (select |#memory_$Pointer$.offset| v_main_~i~0.base_14) v_main_~i~0.offset_14)) (= (select (select |#memory_$Pointer$.base| v_main_~i~0.base_14) v_main_~i~0.offset_14) main_~i~0.base) (<= (select (select |#memory_int| v_main_~i~0.base_14) (+ v_main_~i~0.offset_14 4)) main_~max~0)))) [2019-10-07 03:54:01,625 INFO L193 IcfgInterpreter]: Reachable states at location L577-2 satisfy 126#true [2019-10-07 03:54:01,875 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 03:54:01,876 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 10] total 15 [2019-10-07 03:54:01,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-07 03:54:01,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-07 03:54:01,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2019-10-07 03:54:01,879 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 15 states. [2019-10-07 03:54:02,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:54:02,863 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2019-10-07 03:54:02,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 03:54:02,863 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2019-10-07 03:54:02,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:54:02,864 INFO L225 Difference]: With dead ends: 41 [2019-10-07 03:54:02,864 INFO L226 Difference]: Without dead ends: 25 [2019-10-07 03:54:02,867 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2019-10-07 03:54:02,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-07 03:54:02,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-07 03:54:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-07 03:54:02,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-10-07 03:54:02,874 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2019-10-07 03:54:02,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:54:02,874 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-10-07 03:54:02,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-07 03:54:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-10-07 03:54:02,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-07 03:54:02,875 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:54:02,875 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:54:03,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:54:03,080 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:54:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:54:03,080 INFO L82 PathProgramCache]: Analyzing trace with hash -2044118737, now seen corresponding path program 2 times [2019-10-07 03:54:03,081 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:54:03,081 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:03,082 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:03,082 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:03,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:54:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:03,365 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:54:03,365 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:03,365 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:54:03,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:54:03,466 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-07 03:54:03,466 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 03:54:03,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 38 conjunts are in the unsatisfiable core [2019-10-07 03:54:03,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:54:04,143 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-07 03:54:04,679 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-10-07 03:54:05,181 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-10-07 03:54:05,652 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-07 03:54:06,089 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-10-07 03:54:06,450 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2019-10-07 03:54:06,784 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-10-07 03:54:07,077 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-10-07 03:54:07,337 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-10-07 03:54:07,565 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-10-07 03:54:07,748 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-10-07 03:54:07,892 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-10-07 03:54:08,021 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-10-07 03:54:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:54:08,618 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:54:09,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:54:09,165 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:152) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) 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 03:54:09,171 INFO L168 Benchmark]: Toolchain (without parser) took 93192.98 ms. Allocated memory was 138.4 MB in the beginning and 403.2 MB in the end (delta: 264.8 MB). Free memory was 102.5 MB in the beginning and 211.0 MB in the end (delta: -108.5 MB). Peak memory consumption was 156.3 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:09,175 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 03:54:09,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.56 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 169.9 MB in the end (delta: -67.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:09,178 INFO L168 Benchmark]: Boogie Preprocessor took 62.02 ms. Allocated memory is still 202.9 MB. Free memory was 169.9 MB in the beginning and 167.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:09,179 INFO L168 Benchmark]: RCFGBuilder took 725.22 ms. Allocated memory is still 202.9 MB. Free memory was 167.2 MB in the beginning and 121.0 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:09,179 INFO L168 Benchmark]: TraceAbstraction took 91718.75 ms. Allocated memory was 202.9 MB in the beginning and 403.2 MB in the end (delta: 200.3 MB). Free memory was 121.0 MB in the beginning and 211.0 MB in the end (delta: -90.0 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:09,185 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 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 681.56 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 102.3 MB in the beginning and 169.9 MB in the end (delta: -67.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.02 ms. Allocated memory is still 202.9 MB. Free memory was 169.9 MB in the beginning and 167.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 725.22 ms. Allocated memory is still 202.9 MB. Free memory was 167.2 MB in the beginning and 121.0 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 91718.75 ms. Allocated memory was 202.9 MB in the beginning and 403.2 MB in the end (delta: 200.3 MB). Free memory was 121.0 MB in the beginning and 211.0 MB in the end (delta: -90.0 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...