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/shared_mem2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 03:54:11,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 03:54:11,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 03:54:11,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 03:54:11,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 03:54:11,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 03:54:11,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 03:54:11,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 03:54:11,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 03:54:11,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 03:54:11,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 03:54:11,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 03:54:11,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 03:54:11,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 03:54:11,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 03:54:11,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 03:54:11,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 03:54:11,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 03:54:11,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 03:54:11,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 03:54:11,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 03:54:11,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 03:54:11,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 03:54:11,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 03:54:11,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 03:54:11,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 03:54:11,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 03:54:11,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 03:54:11,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 03:54:11,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 03:54:11,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 03:54:11,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 03:54:11,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 03:54:11,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 03:54:11,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 03:54:11,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 03:54:11,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 03:54:11,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 03:54:11,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 03:54:11,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 03:54:11,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 03:54:11,713 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 03:54:11,729 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 03:54:11,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 03:54:11,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 03:54:11,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 03:54:11,732 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 03:54:11,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 03:54:11,733 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 03:54:11,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 03:54:11,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 03:54:11,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 03:54:11,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 03:54:11,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 03:54:11,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 03:54:11,734 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 03:54:11,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 03:54:11,735 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 03:54:11,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 03:54:11,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 03:54:11,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 03:54:11,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 03:54:11,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 03:54:11,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 03:54:11,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 03:54:11,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 03:54:11,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 03:54:11,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 03:54:11,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 03:54:11,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 03:54:11,738 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 03:54:12,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 03:54:12,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 03:54:12,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 03:54:12,042 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 03:54:12,042 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 03:54:12,043 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem2.i [2019-10-07 03:54:12,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/582c8cd57/b893d63e8201409b8bcb1f0c61f3e64a/FLAG73ed0bb8c [2019-10-07 03:54:12,736 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 03:54:12,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem2.i [2019-10-07 03:54:12,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/582c8cd57/b893d63e8201409b8bcb1f0c61f3e64a/FLAG73ed0bb8c [2019-10-07 03:54:12,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/582c8cd57/b893d63e8201409b8bcb1f0c61f3e64a [2019-10-07 03:54:12,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 03:54:12,960 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 03:54:12,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 03:54:12,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 03:54:12,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 03:54:12,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:54:12" (1/1) ... [2019-10-07 03:54:12,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a1ee07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:12, skipping insertion in model container [2019-10-07 03:54:12,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:54:12" (1/1) ... [2019-10-07 03:54:12,981 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 03:54:13,041 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 03:54:13,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:54:13,503 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 03:54:13,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:54:13,619 INFO L192 MainTranslator]: Completed translation [2019-10-07 03:54:13,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13 WrapperNode [2019-10-07 03:54:13,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 03:54:13,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 03:54:13,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 03:54:13,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 03:54:13,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (1/1) ... [2019-10-07 03:54:13,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (1/1) ... [2019-10-07 03:54:13,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (1/1) ... [2019-10-07 03:54:13,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (1/1) ... [2019-10-07 03:54:13,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (1/1) ... [2019-10-07 03:54:13,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (1/1) ... [2019-10-07 03:54:13,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (1/1) ... [2019-10-07 03:54:13,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 03:54:13,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 03:54:13,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 03:54:13,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 03:54:13,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (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 03:54:13,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 03:54:13,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 03:54:13,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-07 03:54:13,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-07 03:54:13,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 03:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 03:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 03:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-07 03:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-07 03:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-07 03:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-07 03:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-07 03:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-07 03:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-07 03:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-07 03:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-07 03:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-07 03:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-07 03:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-07 03:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-07 03:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-07 03:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-07 03:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-07 03:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-07 03:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-07 03:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-07 03:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-07 03:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-07 03:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-07 03:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-07 03:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-07 03:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-07 03:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-07 03:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-07 03:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-07 03:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-07 03:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-07 03:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-07 03:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-07 03:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-07 03:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-07 03:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-07 03:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-07 03:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-07 03:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-07 03:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-07 03:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-07 03:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-07 03:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-07 03:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-07 03:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-07 03:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-07 03:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-07 03:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-07 03:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-07 03:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-07 03:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-07 03:54:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-07 03:54:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-07 03:54:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 03:54:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 03:54:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-07 03:54:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 03:54:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-07 03:54:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-07 03:54:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-07 03:54:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-07 03:54:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-07 03:54:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-07 03:54:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-07 03:54:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-07 03:54:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-07 03:54:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 03:54:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-07 03:54:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-07 03:54:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-07 03:54:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-07 03:54:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-07 03:54:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-07 03:54:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-07 03:54:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-07 03:54:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-07 03:54:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-07 03:54:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-07 03:54:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-07 03:54:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-07 03:54:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-07 03:54:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-07 03:54:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-07 03:54:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-07 03:54:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-07 03:54:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-07 03:54:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-07 03:54:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-07 03:54:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-07 03:54:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-07 03:54:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 03:54:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 03:54:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 03:54:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 03:54:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 03:54:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 03:54:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 03:54:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 03:54:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 03:54:14,490 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 03:54:14,491 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-07 03:54:14,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:54:14 BoogieIcfgContainer [2019-10-07 03:54:14,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 03:54:14,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 03:54:14,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 03:54:14,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 03:54:14,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:54:12" (1/3) ... [2019-10-07 03:54:14,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4958519c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:54:14, skipping insertion in model container [2019-10-07 03:54:14,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:13" (2/3) ... [2019-10-07 03:54:14,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4958519c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:54:14, skipping insertion in model container [2019-10-07 03:54:14,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:54:14" (3/3) ... [2019-10-07 03:54:14,502 INFO L109 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2019-10-07 03:54:14,513 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 03:54:14,523 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 03:54:14,535 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 03:54:14,563 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 03:54:14,563 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 03:54:14,564 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 03:54:14,564 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 03:54:14,564 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 03:54:14,565 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 03:54:14,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 03:54:14,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 03:54:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-07 03:54:14,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 03:54:14,593 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:54:14,594 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:54:14,596 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:54:14,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:54:14,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1997086019, now seen corresponding path program 1 times [2019-10-07 03:54:14,614 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:54:14,614 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:14,614 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:14,615 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:14,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:54:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:14,795 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 03:54:14,796 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:14,800 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:54:14,801 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 03:54:14,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 03:54:14,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 03:54:14,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 03:54:14,819 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-10-07 03:54:14,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:54:14,838 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2019-10-07 03:54:14,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 03:54:14,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-07 03:54:14,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:54:14,850 INFO L225 Difference]: With dead ends: 29 [2019-10-07 03:54:14,850 INFO L226 Difference]: Without dead ends: 14 [2019-10-07 03:54:14,854 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 03:54:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-07 03:54:14,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-07 03:54:14,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-07 03:54:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-10-07 03:54:14,897 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-10-07 03:54:14,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:54:14,897 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-10-07 03:54:14,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 03:54:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-10-07 03:54:14,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 03:54:14,898 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:54:14,899 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:54:14,899 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:54:14,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:54:14,900 INFO L82 PathProgramCache]: Analyzing trace with hash -156766380, now seen corresponding path program 1 times [2019-10-07 03:54:14,900 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:54:14,900 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:14,900 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:14,901 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:14,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:54:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:15,093 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 03:54:15,093 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:15,093 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:54:15,094 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 03:54:15,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 03:54:15,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 03:54:15,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-07 03:54:15,096 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2019-10-07 03:54:15,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:54:15,185 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-10-07 03:54:15,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 03:54:15,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-07 03:54:15,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:54:15,188 INFO L225 Difference]: With dead ends: 23 [2019-10-07 03:54:15,188 INFO L226 Difference]: Without dead ends: 19 [2019-10-07 03:54:15,189 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-07 03:54:15,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-07 03:54:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-07 03:54:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-07 03:54:15,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-07 03:54:15,198 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2019-10-07 03:54:15,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:54:15,199 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-07 03:54:15,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 03:54:15,199 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-07 03:54:15,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-07 03:54:15,202 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:54:15,202 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:54:15,202 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:54:15,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:54:15,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1881400114, now seen corresponding path program 1 times [2019-10-07 03:54:15,203 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:54:15,203 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:15,203 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:15,204 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:15,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:54:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:54:15,445 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:15,445 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:54:15,450 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 03:54:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:15,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-07 03:54:15,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:54:15,721 INFO L341 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-10-07 03:54:15,722 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2019-10-07 03:54:15,723 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:15,758 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:15,761 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_44|], 2=[|v_#memory_int_41|]} [2019-10-07 03:54:15,769 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-07 03:54:15,780 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2019-10-07 03:54:15,781 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:15,801 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:15,818 INFO L341 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2019-10-07 03:54:15,819 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 21 [2019-10-07 03:54:15,820 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:15,834 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:15,835 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 03:54:15,835 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:78, output treesize:32 [2019-10-07 03:54:15,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 03:54:15,887 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 3=[|v_#valid_21|]} [2019-10-07 03:54:15,898 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 29 treesize of output 25 [2019-10-07 03:54:15,899 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:16,006 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-10-07 03:54:16,007 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,043 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,044 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 126 treesize of output 136 [2019-10-07 03:54:16,046 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:16,141 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,146 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_37|, |v_#memory_$Pointer$.base_36|, |v_#memory_$Pointer$.offset_37|, |v_#memory_$Pointer$.offset_36|, |v_#memory_int_43|], 2=[|v_#memory_int_42|], 10=[|v_#memory_int_45|]} [2019-10-07 03:54:16,164 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 104 [2019-10-07 03:54:16,165 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:16,241 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,241 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.base_36| vanished before elimination [2019-10-07 03:54:16,256 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 89 [2019-10-07 03:54:16,256 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:16,315 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,315 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_36| vanished before elimination [2019-10-07 03:54:16,328 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 03:54:16,394 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,399 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 03:54:16,452 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,493 INFO L341 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2019-10-07 03:54:16,494 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 70 [2019-10-07 03:54:16,495 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:16,606 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2019-10-07 03:54:16,607 INFO L567 ElimStorePlain]: treesize reduction 8, result has 90.5 percent of original size [2019-10-07 03:54:16,609 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, 7 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2019-10-07 03:54:16,610 INFO L221 ElimStorePlain]: Needed 8 recursive calls to eliminate 14 variables, input treesize:156, output treesize:50 [2019-10-07 03:54:16,763 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 03:54:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:54:16,782 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:54:16,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 03:54:16,845 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_36|, |#memory_$Pointer$.base|, |v_#memory_$Pointer$.offset_36|, |#memory_$Pointer$.offset|, |v_#memory_int_43|], 2=[|v_#memory_int_46|, |v_#memory_int_42|]} [2019-10-07 03:54:16,852 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:16,926 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,926 INFO L464 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2019-10-07 03:54:16,931 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 03:54:16,979 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:16,979 INFO L464 ElimStorePlain]: Eliminatee |#memory_$Pointer$.offset| vanished before elimination [2019-10-07 03:54:16,984 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 03:54:17,018 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:17,022 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 03:54:17,055 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:17,059 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 03:54:17,078 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 03:54:17,079 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 7 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2019-10-07 03:54:17,080 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 10 variables, input treesize:120, output treesize:71 [2019-10-07 03:54:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:54:17,147 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:54:17,188 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-10-07 03:54:17,188 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:54:17,194 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:54:17,203 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:54:17,204 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:54:17,315 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 03:54:19,057 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2019-10-07 03:54:19,571 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2019-10-07 03:54:20,020 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2019-10-07 03:54:20,535 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2019-10-07 03:54:28,022 WARN L191 SmtUtils]: Spent 7.49 s on a formula simplification. DAG size of input: 170 DAG size of output: 162 [2019-10-07 03:54:35,842 WARN L191 SmtUtils]: Spent 7.82 s on a formula simplification. DAG size of input: 170 DAG size of output: 162 [2019-10-07 03:55:15,633 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-10-07 03:55:15,690 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-10-07 03:55:15,784 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 03:55:15,794 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 03:55:15,795 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 03:55:15,795 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 136#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:55:15,795 INFO L193 IcfgInterpreter]: Reachable states at location L589 satisfy 122#(and (= |main_#t~mem15| (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) (<= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) (= main_~list~0.offset main_~head~0.offset) (= main_~head~0.base main_~list~0.base)) [2019-10-07 03:55:15,796 INFO L193 IcfgInterpreter]: Reachable states at location L590 satisfy 127#(and (<= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) (= main_~list~0.offset main_~head~0.offset) (= main_~head~0.base main_~list~0.base) (not (= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)))) [2019-10-07 03:55:15,796 INFO L193 IcfgInterpreter]: Reachable states at location L584-4 satisfy 117#(and (<= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) (= main_~list~0.offset main_~head~0.offset) (= main_~head~0.base main_~list~0.base)) [2019-10-07 03:55:15,797 INFO L193 IcfgInterpreter]: Reachable states at location L573-3 satisfy 102#true [2019-10-07 03:55:15,797 INFO L193 IcfgInterpreter]: Reachable states at location L584-3 satisfy 107#(and (= main_~list~0.offset main_~head~0.offset) (= main_~head~0.base main_~list~0.base)) [2019-10-07 03:55:15,797 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 03:55:15,798 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 03:55:15,798 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 141#(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 03:55:15,798 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 03:55:15,798 INFO L193 IcfgInterpreter]: Reachable states at location L573-1 satisfy 97#(and (<= |main_#t~nondet4| 2147483647) (<= 0 (+ |main_#t~nondet4| 2147483648))) [2019-10-07 03:55:15,799 INFO L193 IcfgInterpreter]: Reachable states at location L584-1 satisfy 112#(and (= main_~list~0.offset main_~head~0.offset) (= main_~head~0.base main_~list~0.base) (= (select (select |#memory_int| main_~m~0.base) main_~m~0.offset) |main_#t~mem7|)) [2019-10-07 03:55:15,799 INFO L193 IcfgInterpreter]: Reachable states at location L575-2 satisfy 92#true [2019-10-07 03:55:15,799 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 132#(and (<= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) (= main_~list~0.offset main_~head~0.offset) (= main_~head~0.base main_~list~0.base) (not (= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)))) [2019-10-07 03:55:16,108 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 03:55:16,108 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 11] total 22 [2019-10-07 03:55:16,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-07 03:55:16,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-07 03:55:16,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2019-10-07 03:55:16,112 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 22 states. [2019-10-07 03:55:16,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:55:16,717 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-10-07 03:55:16,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 03:55:16,717 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 15 [2019-10-07 03:55:16,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:55:16,718 INFO L225 Difference]: With dead ends: 27 [2019-10-07 03:55:16,718 INFO L226 Difference]: Without dead ends: 23 [2019-10-07 03:55:16,719 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2019-10-07 03:55:16,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-07 03:55:16,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2019-10-07 03:55:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-07 03:55:16,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-10-07 03:55:16,724 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2019-10-07 03:55:16,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:55:16,724 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-10-07 03:55:16,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-07 03:55:16,725 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-10-07 03:55:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-07 03:55:16,725 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:55:16,725 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 03:55:16,926 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:55:16,927 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:55:16,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:55:16,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1336612676, now seen corresponding path program 1 times [2019-10-07 03:55:16,928 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:55:16,928 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:55:16,928 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:55:16,929 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:55:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:55:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:55:17,364 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-10-07 03:55:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:55:17,625 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:55:17,625 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:55:17,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:55:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:55:17,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-07 03:55:17,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:55:18,204 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 51 [2019-10-07 03:55:18,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 03:55:18,645 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:55:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 03:55:18,817 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:55:18,820 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-10-07 03:55:18,821 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:55:18,821 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:55:18,822 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:55:18,823 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:55:18,850 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 03:55:28,875 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 03:55:28,881 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 03:55:28,881 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 03:55:28,881 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 110#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:55:28,881 INFO L193 IcfgInterpreter]: Reachable states at location L589 satisfy 96#(and (= |main_#t~mem15| (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) (<= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset))) [2019-10-07 03:55:28,882 INFO L193 IcfgInterpreter]: Reachable states at location L590 satisfy 101#(and (<= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) (not (= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)))) [2019-10-07 03:55:28,882 INFO L193 IcfgInterpreter]: Reachable states at location L584-4 satisfy 91#(<= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) [2019-10-07 03:55:28,882 INFO L193 IcfgInterpreter]: Reachable states at location L573-3 satisfy 48#(exists ((v_DerPreprocessor_46 Int) (v_DerPreprocessor_47 Int) (v_DerPreprocessor_44 Int) (v_DerPreprocessor_45 Int) (v_DerPreprocessor_43 Int)) (and (= |#valid| (store (store |old(#valid)| |main_#t~malloc2.base| 1) |main_#t~malloc3.base| 1)) (= 0 |#NULL.base|) (= |main_#t~malloc3.offset| main_~head~0.offset) (= |main_#t~malloc2.base| main_~m~0.base) (= 0 |main_#t~malloc2.offset|) (= |#memory_$Pointer$.base| (store (store |old(#memory_$Pointer$.base)| main_~m~0.base (store (select |old(#memory_$Pointer$.base)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_45)) main_~head~0.base (store (store (store (select (store |old(#memory_$Pointer$.base)| main_~m~0.base (store (select |old(#memory_$Pointer$.base)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_45)) main_~head~0.base) main_~head~0.offset v_DerPreprocessor_47) (+ main_~head~0.offset 4) main_~m~0.base) (+ main_~head~0.offset 8) main_~head~0.base))) (<= 0 |#NULL.base|) (= |main_#t~malloc3.offset| 0) (= |main_#t~malloc3.base| main_~head~0.base) (= main_~head~0.base main_~list~0.base) (<= 0 |#NULL.offset|) (= main_~m~0.offset |main_#t~malloc2.offset|) (< |#StackHeapBarrier| |main_#t~malloc3.base|) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (not (= |main_#t~malloc3.base| 0)) (not (= |main_#t~malloc2.base| 0)) (<= |#NULL.base| 0) (= (store (store |old(#memory_int)| main_~m~0.base (store (select |old(#memory_int)| main_~m~0.base) main_~m~0.offset 0)) main_~head~0.base (store (store (store (select (store |old(#memory_int)| main_~m~0.base (store (select |old(#memory_int)| main_~m~0.base) main_~m~0.offset 0)) main_~head~0.base) main_~head~0.offset 1) (+ main_~head~0.offset 4) v_DerPreprocessor_44) (+ main_~head~0.offset 8) (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))) |#memory_int|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= |#length| (store (store |old(#length)| |main_#t~malloc2.base| 4) |main_#t~malloc3.base| 12)) (= (store (store |old(#memory_$Pointer$.offset)| main_~m~0.base (store (select |old(#memory_$Pointer$.offset)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_43)) main_~head~0.base (store (store (store (select (store |old(#memory_$Pointer$.offset)| main_~m~0.base (store (select |old(#memory_$Pointer$.offset)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_43)) main_~head~0.base) main_~head~0.offset v_DerPreprocessor_46) (+ main_~head~0.offset 4) main_~m~0.offset) (+ main_~head~0.offset 8) main_~head~0.offset)) |#memory_$Pointer$.offset|) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= (select (store |old(#valid)| |main_#t~malloc2.base| 1) |main_#t~malloc3.base|) 0) (= main_~list~0.offset main_~head~0.offset) (= |#NULL.offset| 0))) [2019-10-07 03:55:28,882 INFO L193 IcfgInterpreter]: Reachable states at location L584-3 satisfy 81#true [2019-10-07 03:55:28,883 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 03:55:28,883 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 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2019-10-07 03:55:28,883 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 115#(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 03:55:28,883 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 03:55:28,884 INFO L193 IcfgInterpreter]: Reachable states at location L573-1 satisfy 43#(and (<= |main_#t~nondet4| 2147483647) (<= 0 (+ |main_#t~nondet4| 2147483648)) (exists ((v_DerPreprocessor_46 Int) (v_DerPreprocessor_47 Int) (v_DerPreprocessor_44 Int) (v_DerPreprocessor_45 Int) (v_DerPreprocessor_43 Int)) (and (= |#valid| (store (store |old(#valid)| |main_#t~malloc2.base| 1) |main_#t~malloc3.base| 1)) (= 0 |#NULL.base|) (= |main_#t~malloc3.offset| main_~head~0.offset) (= |main_#t~malloc2.base| main_~m~0.base) (= 0 |main_#t~malloc2.offset|) (= |#memory_$Pointer$.base| (store (store |old(#memory_$Pointer$.base)| main_~m~0.base (store (select |old(#memory_$Pointer$.base)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_45)) main_~head~0.base (store (store (store (select (store |old(#memory_$Pointer$.base)| main_~m~0.base (store (select |old(#memory_$Pointer$.base)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_45)) main_~head~0.base) main_~head~0.offset v_DerPreprocessor_47) (+ main_~head~0.offset 4) main_~m~0.base) (+ main_~head~0.offset 8) main_~head~0.base))) (<= 0 |#NULL.base|) (= |main_#t~malloc3.offset| 0) (= |main_#t~malloc3.base| main_~head~0.base) (= main_~head~0.base main_~list~0.base) (<= 0 |#NULL.offset|) (= main_~m~0.offset |main_#t~malloc2.offset|) (< |#StackHeapBarrier| |main_#t~malloc3.base|) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (not (= |main_#t~malloc3.base| 0)) (not (= |main_#t~malloc2.base| 0)) (<= |#NULL.base| 0) (= (store (store |old(#memory_int)| main_~m~0.base (store (select |old(#memory_int)| main_~m~0.base) main_~m~0.offset 0)) main_~head~0.base (store (store (store (select (store |old(#memory_int)| main_~m~0.base (store (select |old(#memory_int)| main_~m~0.base) main_~m~0.offset 0)) main_~head~0.base) main_~head~0.offset 1) (+ main_~head~0.offset 4) v_DerPreprocessor_44) (+ main_~head~0.offset 8) (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))) |#memory_int|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= |#length| (store (store |old(#length)| |main_#t~malloc2.base| 4) |main_#t~malloc3.base| 12)) (= (store (store |old(#memory_$Pointer$.offset)| main_~m~0.base (store (select |old(#memory_$Pointer$.offset)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_43)) main_~head~0.base (store (store (store (select (store |old(#memory_$Pointer$.offset)| main_~m~0.base (store (select |old(#memory_$Pointer$.offset)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_43)) main_~head~0.base) main_~head~0.offset v_DerPreprocessor_46) (+ main_~head~0.offset 4) main_~m~0.offset) (+ main_~head~0.offset 8) main_~head~0.offset)) |#memory_$Pointer$.offset|) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= (select (store |old(#valid)| |main_#t~malloc2.base| 1) |main_#t~malloc3.base|) 0) (= main_~list~0.offset main_~head~0.offset) (= |#NULL.offset| 0)))) [2019-10-07 03:55:28,884 INFO L193 IcfgInterpreter]: Reachable states at location L584-1 satisfy 86#(= (select (select |#memory_int| main_~m~0.base) main_~m~0.offset) |main_#t~mem7|) [2019-10-07 03:55:28,884 INFO L193 IcfgInterpreter]: Reachable states at location L575-2 satisfy 38#(exists ((v_DerPreprocessor_46 Int) (v_DerPreprocessor_47 Int) (v_DerPreprocessor_44 Int) (v_DerPreprocessor_45 Int) (v_DerPreprocessor_43 Int)) (and (= |#valid| (store (store |old(#valid)| |main_#t~malloc2.base| 1) |main_#t~malloc3.base| 1)) (= 0 |#NULL.base|) (= |main_#t~malloc3.offset| main_~head~0.offset) (= |main_#t~malloc2.base| main_~m~0.base) (= 0 |main_#t~malloc2.offset|) (= |#memory_$Pointer$.base| (store (store |old(#memory_$Pointer$.base)| main_~m~0.base (store (select |old(#memory_$Pointer$.base)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_45)) main_~head~0.base (store (store (store (select (store |old(#memory_$Pointer$.base)| main_~m~0.base (store (select |old(#memory_$Pointer$.base)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_45)) main_~head~0.base) main_~head~0.offset v_DerPreprocessor_47) (+ main_~head~0.offset 4) main_~m~0.base) (+ main_~head~0.offset 8) main_~head~0.base))) (<= 0 |#NULL.base|) (= |main_#t~malloc3.offset| 0) (= |main_#t~malloc3.base| main_~head~0.base) (= main_~head~0.base main_~list~0.base) (<= 0 |#NULL.offset|) (= main_~m~0.offset |main_#t~malloc2.offset|) (< |#StackHeapBarrier| |main_#t~malloc3.base|) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (not (= |main_#t~malloc3.base| 0)) (not (= |main_#t~malloc2.base| 0)) (<= |#NULL.base| 0) (= (store (store |old(#memory_int)| main_~m~0.base (store (select |old(#memory_int)| main_~m~0.base) main_~m~0.offset 0)) main_~head~0.base (store (store (store (select (store |old(#memory_int)| main_~m~0.base (store (select |old(#memory_int)| main_~m~0.base) main_~m~0.offset 0)) main_~head~0.base) main_~head~0.offset 1) (+ main_~head~0.offset 4) v_DerPreprocessor_44) (+ main_~head~0.offset 8) (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))) |#memory_int|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (= |#length| (store (store |old(#length)| |main_#t~malloc2.base| 4) |main_#t~malloc3.base| 12)) (= (store (store |old(#memory_$Pointer$.offset)| main_~m~0.base (store (select |old(#memory_$Pointer$.offset)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_43)) main_~head~0.base (store (store (store (select (store |old(#memory_$Pointer$.offset)| main_~m~0.base (store (select |old(#memory_$Pointer$.offset)| main_~m~0.base) main_~m~0.offset v_DerPreprocessor_43)) main_~head~0.base) main_~head~0.offset v_DerPreprocessor_46) (+ main_~head~0.offset 4) main_~m~0.offset) (+ main_~head~0.offset 8) main_~head~0.offset)) |#memory_$Pointer$.offset|) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= (select (store |old(#valid)| |main_#t~malloc2.base| 1) |main_#t~malloc3.base|) 0) (= main_~list~0.offset main_~head~0.offset) (= |#NULL.offset| 0))) [2019-10-07 03:55:28,884 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 106#(and (<= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)) (not (= 100 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset)))) [2019-10-07 03:55:29,539 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 03:55:29,540 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7, 11] total 27 [2019-10-07 03:55:29,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-07 03:55:29,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-07 03:55:29,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2019-10-07 03:55:29,542 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 27 states. [2019-10-07 03:55:34,360 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-10-07 03:55:34,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:55:34,979 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2019-10-07 03:55:34,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-07 03:55:34,979 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 17 [2019-10-07 03:55:34,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:55:34,980 INFO L225 Difference]: With dead ends: 34 [2019-10-07 03:55:34,980 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 03:55:34,982 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=243, Invalid=1317, Unknown=0, NotChecked=0, Total=1560 [2019-10-07 03:55:34,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 03:55:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 03:55:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 03:55:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 03:55:34,983 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-07 03:55:34,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:55:34,983 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 03:55:34,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-07 03:55:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 03:55:34,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 03:55:35,188 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:55:35,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 03:55:35,412 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 43 [2019-10-07 03:55:35,498 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 03:55:35,498 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 03:55:35,498 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-10-07 03:55:35,498 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-10-07 03:55:35,498 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-10-07 03:55:35,498 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-10-07 03:55:35,498 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 03:55:35,498 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= 0 |#NULL.offset|)) [2019-10-07 03:55:35,498 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 03:55:35,498 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 03:55:35,499 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 565 591) no Hoare annotation was computed. [2019-10-07 03:55:35,499 INFO L443 ceAbstractionStarter]: For program point L589(lines 589 590) no Hoare annotation was computed. [2019-10-07 03:55:35,499 INFO L443 ceAbstractionStarter]: For program point L589-2(lines 565 591) no Hoare annotation was computed. [2019-10-07 03:55:35,499 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 565 591) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-07 03:55:35,499 INFO L439 ceAbstractionStarter]: At program point L575-2(lines 573 582) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (and (= 1 (select (select |#memory_int| main_~head~0.base) main_~head~0.offset)) (= 0 main_~m~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.base main_~list~0.base) (not (= main_~m~0.base main_~list~0.base)) (= main_~list~0.offset main_~head~0.offset) (= (select |#valid| main_~m~0.base) 1) (= 0 (select |#valid| 0)) (= 0 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset))) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-07 03:55:35,499 INFO L443 ceAbstractionStarter]: For program point L573-1(lines 573 582) no Hoare annotation was computed. [2019-10-07 03:55:35,499 INFO L443 ceAbstractionStarter]: For program point L573-3(lines 573 582) no Hoare annotation was computed. [2019-10-07 03:55:35,499 INFO L443 ceAbstractionStarter]: For program point L590(line 590) no Hoare annotation was computed. [2019-10-07 03:55:35,499 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2019-10-07 03:55:35,500 INFO L443 ceAbstractionStarter]: For program point L584-1(lines 584 588) no Hoare annotation was computed. [2019-10-07 03:55:35,500 INFO L439 ceAbstractionStarter]: At program point L584-3(lines 584 588) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (and (= 0 (select |#valid| 0)) (let ((.cse0 (select (select |#memory_int| main_~m~0.base) main_~m~0.offset))) (or (= 100 .cse0) (<= .cse0 99)))) (not (<= |#NULL.base| 0))) [2019-10-07 03:55:35,500 INFO L443 ceAbstractionStarter]: For program point L584-4(lines 584 588) no Hoare annotation was computed. [2019-10-07 03:55:35,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:55:35 BoogieIcfgContainer [2019-10-07 03:55:35,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 03:55:35,542 INFO L168 Benchmark]: Toolchain (without parser) took 82583.07 ms. Allocated memory was 144.7 MB in the beginning and 316.7 MB in the end (delta: 172.0 MB). Free memory was 102.0 MB in the beginning and 103.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 170.8 MB. Max. memory is 7.1 GB. [2019-10-07 03:55:35,543 INFO L168 Benchmark]: CDTParser took 1.49 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 03:55:35,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.51 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 169.5 MB in the end (delta: -67.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-10-07 03:55:35,546 INFO L168 Benchmark]: Boogie Preprocessor took 84.41 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 166.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-07 03:55:35,549 INFO L168 Benchmark]: RCFGBuilder took 787.55 ms. Allocated memory is still 202.4 MB. Free memory was 166.8 MB in the beginning and 113.9 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2019-10-07 03:55:35,550 INFO L168 Benchmark]: TraceAbstraction took 81045.85 ms. Allocated memory was 202.4 MB in the beginning and 316.7 MB in the end (delta: 114.3 MB). Free memory was 113.9 MB in the beginning and 103.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. [2019-10-07 03:55:35,553 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.51 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 169.5 MB in the end (delta: -67.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.41 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 166.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 787.55 ms. Allocated memory is still 202.4 MB. Free memory was 166.8 MB in the beginning and 113.9 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 81045.85 ms. Allocated memory was 202.4 MB in the beginning and 316.7 MB in the end (delta: 114.3 MB). Free memory was 113.9 MB in the beginning and 103.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 590]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 573]: Loop Invariant [2019-10-07 03:55:35,569 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,570 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,570 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,570 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,570 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,570 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((!(#NULL <= 0) || !(0 <= #NULL)) || ((((((((1 == unknown-#memory_int-unknown[head][head] && 0 == m) && 1 == \valid[head]) && head == list) && !(m == list)) && list == head) && \valid[m] == 1) && 0 == \valid[0]) && 0 == unknown-#memory_int-unknown[m][m])) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - InvariantResult [Line: 584]: Loop Invariant [2019-10-07 03:55:35,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 03:55:35,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 03:55:35,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((!(#NULL <= 0) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || (0 == \valid[0] && (100 == unknown-#memory_int-unknown[m][m] || unknown-#memory_int-unknown[m][m] <= 99))) || !(#NULL <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 80.9s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 42 SDtfs, 48 SDslu, 136 SDs, 0 SdLazy, 269 SolverSat, 51 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 15 NumberOfFragments, 178 HoareAnnotationTreeSize, 6 FomulaSimplifications, 584 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 772 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 112 ConstructedInterpolants, 11 QuantifiedInterpolants, 28660 SizeOfPredicates, 37 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 5/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 68676, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 50, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 32, TOOLS_POST_TIME[ms]: 61527, TOOLS_POST_CALL_APPLICATIONS: 8, TOOLS_POST_CALL_TIME[ms]: 9, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 2, TOOLS_QUANTIFIERELIM_APPLICATIONS: 44, TOOLS_QUANTIFIERELIM_TIME[ms]: 61513, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 56753, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 55, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 41, DOMAIN_JOIN_TIME[ms]: 291, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 3, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 7, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME[ms]: 6734, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 3, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 68196, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 68195, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 32, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 32, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 21, DAG_COMPRESSION_PROCESSED_NODES: 187, DAG_COMPRESSION_RETAINED_NODES: 86, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...