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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/list-properties/list-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:45:35,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:45:35,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:45:36,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:45:36,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:45:36,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:45:36,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:45:36,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:45:36,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:45:36,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:45:36,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:45:36,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:45:36,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:45:36,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:45:36,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:45:36,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:45:36,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:45:36,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:45:36,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:45:36,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:45:36,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:45:36,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:45:36,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:45:36,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:45:36,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:45:36,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:45:36,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:45:36,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:45:36,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:45:36,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:45:36,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:45:36,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:45:36,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:45:36,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:45:36,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:45:36,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:45:36,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:45:36,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:45:36,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:45:36,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:45:36,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:45:36,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:45:36,054 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:45:36,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:45:36,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:45:36,055 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:45:36,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:45:36,056 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:45:36,056 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:45:36,056 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:45:36,056 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:45:36,057 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:45:36,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:45:36,057 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:45:36,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:45:36,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:45:36,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:45:36,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:45:36,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:45:36,059 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:45:36,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:45:36,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:45:36,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:45:36,059 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:45:36,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:45:36,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:45:36,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:45:36,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:45:36,061 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:45:36,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:45:36,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:45:36,061 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:45:36,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:45:36,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:45:36,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:45:36,121 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:45:36,121 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:45:36,123 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list-1.i [2019-09-10 01:45:36,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14605bdef/62d03fac4e40445b91a0185613fe9539/FLAG0e8b0d8e3 [2019-09-10 01:45:36,696 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:45:36,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list-1.i [2019-09-10 01:45:36,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14605bdef/62d03fac4e40445b91a0185613fe9539/FLAG0e8b0d8e3 [2019-09-10 01:45:37,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14605bdef/62d03fac4e40445b91a0185613fe9539 [2019-09-10 01:45:37,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:45:37,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:45:37,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:37,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:45:37,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:45:37,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c7f8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37, skipping insertion in model container [2019-09-10 01:45:37,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,051 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:45:37,106 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:45:37,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:37,551 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:45:37,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:37,666 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:45:37,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37 WrapperNode [2019-09-10 01:45:37,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:37,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:45:37,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:45:37,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:45:37,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:37,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:45:37,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:45:37,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:45:37,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:45:37,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (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 [2019-09-10 01:45:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:45:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:45:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:45:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:45:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-09-10 01:45:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-09-10 01:45:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-09-10 01:45:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-10 01:45:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:45:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:45:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:45:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:45:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:45:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:45:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:45:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:45:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:45:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:45:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:45:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:45:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:45:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:45:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:45:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:45:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:45:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:45:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:45:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:45:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:45:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-09-10 01:45:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-09-10 01:45:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-09-10 01:45:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:45:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:45:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:45:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:45:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:45:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:45:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:45:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:45:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:45:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:45:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:45:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:45:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:45:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:45:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:45:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:45:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:45:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:45:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:45:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:45:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:45:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:45:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:45:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:45:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:45:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:45:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:45:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:45:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:45:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:45:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:45:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:45:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:45:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:45:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:45:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:45:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:45:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:45:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:45:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:45:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:45:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:45:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:45:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:45:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:45:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:45:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:45:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:45:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:45:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:45:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:45:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:45:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:45:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:45:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:45:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:45:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:45:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:45:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:45:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:45:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:45:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:45:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:45:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:45:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:45:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:45:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:45:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:45:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:45:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:45:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:45:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:45:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:45:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:45:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:45:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:45:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:45:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:45:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:45:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:45:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:45:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:45:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:45:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:45:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:45:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:45:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-10 01:45:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:45:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:45:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:45:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:45:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:45:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:45:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:45:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:45:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:45:38,204 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-10 01:45:38,368 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:45:38,368 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 01:45:38,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:38 BoogieIcfgContainer [2019-09-10 01:45:38,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:45:38,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:45:38,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:45:38,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:45:38,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:45:37" (1/3) ... [2019-09-10 01:45:38,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3466e63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:38, skipping insertion in model container [2019-09-10 01:45:38,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:37" (2/3) ... [2019-09-10 01:45:38,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3466e63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:38, skipping insertion in model container [2019-09-10 01:45:38,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:38" (3/3) ... [2019-09-10 01:45:38,378 INFO L109 eAbstractionObserver]: Analyzing ICFG list-1.i [2019-09-10 01:45:38,386 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:45:38,394 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:45:38,411 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:45:38,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:45:38,439 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:45:38,439 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:45:38,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:45:38,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:45:38,440 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:45:38,440 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:45:38,440 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:45:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-09-10 01:45:38,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:45:38,462 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:38,463 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:38,465 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:38,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:38,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1613857984, now seen corresponding path program 1 times [2019-09-10 01:45:38,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:38,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:38,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:38,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:38,533 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:38,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:38,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:45:38,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:38,616 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:45:38,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:45:38,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:45:38,634 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-09-10 01:45:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:38,651 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2019-09-10 01:45:38,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:45:38,652 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-09-10 01:45:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:38,658 INFO L225 Difference]: With dead ends: 35 [2019-09-10 01:45:38,659 INFO L226 Difference]: Without dead ends: 25 [2019-09-10 01:45:38,661 INFO L628 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 [2019-09-10 01:45:38,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-09-10 01:45:38,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-09-10 01:45:38,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-10 01:45:38,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-09-10 01:45:38,697 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2019-09-10 01:45:38,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:38,697 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-09-10 01:45:38,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:45:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-09-10 01:45:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-10 01:45:38,699 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:38,699 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:38,699 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:38,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:38,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1642379272, now seen corresponding path program 1 times [2019-09-10 01:45:38,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:38,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:38,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:38,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:38,703 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:38,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:38,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:38,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:45:38,812 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:38,814 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:45:38,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:45:38,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:45:38,815 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 5 states. [2019-09-10 01:45:38,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:38,959 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2019-09-10 01:45:38,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:45:38,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-09-10 01:45:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:38,964 INFO L225 Difference]: With dead ends: 48 [2019-09-10 01:45:38,964 INFO L226 Difference]: Without dead ends: 46 [2019-09-10 01:45:38,965 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:45:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-10 01:45:38,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2019-09-10 01:45:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-10 01:45:38,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2019-09-10 01:45:38,980 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 20 [2019-09-10 01:45:38,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:38,980 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-09-10 01:45:38,980 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:45:38,981 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2019-09-10 01:45:38,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-10 01:45:38,984 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:38,984 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:38,984 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:38,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:38,985 INFO L82 PathProgramCache]: Analyzing trace with hash -2024806125, now seen corresponding path program 1 times [2019-09-10 01:45:38,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:38,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:38,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:38,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:38,987 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:39,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:39,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:45:39,080 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:39,080 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:45:39,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:45:39,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:45:39,081 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 5 states. [2019-09-10 01:45:39,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:39,209 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2019-09-10 01:45:39,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:45:39,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-09-10 01:45:39,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:39,210 INFO L225 Difference]: With dead ends: 46 [2019-09-10 01:45:39,211 INFO L226 Difference]: Without dead ends: 44 [2019-09-10 01:45:39,211 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:45:39,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-09-10 01:45:39,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2019-09-10 01:45:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-10 01:45:39,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2019-09-10 01:45:39,216 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 22 [2019-09-10 01:45:39,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:39,216 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2019-09-10 01:45:39,217 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:45:39,217 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2019-09-10 01:45:39,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-10 01:45:39,218 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:39,218 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:39,218 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:39,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:39,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1000103149, now seen corresponding path program 1 times [2019-09-10 01:45:39,219 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:39,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:39,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,221 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:39,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:39,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:45:39,302 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:39,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:45:39,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:45:39,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:45:39,304 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 5 states. [2019-09-10 01:45:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:39,395 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2019-09-10 01:45:39,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:45:39,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-09-10 01:45:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:39,396 INFO L225 Difference]: With dead ends: 44 [2019-09-10 01:45:39,396 INFO L226 Difference]: Without dead ends: 41 [2019-09-10 01:45:39,397 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:45:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-09-10 01:45:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-09-10 01:45:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-09-10 01:45:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-09-10 01:45:39,401 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 22 [2019-09-10 01:45:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:39,401 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-09-10 01:45:39,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:45:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-09-10 01:45:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:45:39,402 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:39,402 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:39,403 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:39,403 INFO L82 PathProgramCache]: Analyzing trace with hash 422878047, now seen corresponding path program 1 times [2019-09-10 01:45:39,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:39,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:39,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,405 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:39,536 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:45:39,537 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:45:39,538 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2019-09-10 01:45:39,540 INFO L207 CegarAbsIntRunner]: [11], [12], [13], [19], [21], [26], [29], [46], [49], [51], [57], [59], [63], [68], [71], [80], [83], [89], [92], [94], [114], [115], [116] [2019-09-10 01:45:39,591 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:45:39,592 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:45:39,696 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:45:39,698 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-09-10 01:45:39,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:39,704 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:45:39,756 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-10 01:45:39,756 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:45:39,764 INFO L420 sIntCurrentIteration]: We unified 23 AI predicates to 23 [2019-09-10 01:45:39,764 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:45:39,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:45:39,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-10 01:45:39,765 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:39,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:45:39,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:45:39,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:45:39,768 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 2 states. [2019-09-10 01:45:39,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:39,769 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-10 01:45:39,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:45:39,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-09-10 01:45:39,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:39,770 INFO L225 Difference]: With dead ends: 6 [2019-09-10 01:45:39,770 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:45:39,770 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:45:39,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:45:39,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:45:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:45:39,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:45:39,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-09-10 01:45:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:39,773 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:45:39,773 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:45:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:45:39,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:45:39,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:45:39 BoogieIcfgContainer [2019-09-10 01:45:39,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:45:39,781 INFO L168 Benchmark]: Toolchain (without parser) took 2754.30 ms. Allocated memory was 131.1 MB in the beginning and 219.2 MB in the end (delta: 88.1 MB). Free memory was 86.7 MB in the beginning and 136.1 MB in the end (delta: -49.5 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:39,783 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 131.1 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:45:39,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.00 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 86.5 MB in the beginning and 163.3 MB in the end (delta: -76.8 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:39,786 INFO L168 Benchmark]: Boogie Preprocessor took 73.92 ms. Allocated memory is still 198.7 MB. Free memory was 163.3 MB in the beginning and 160.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:39,788 INFO L168 Benchmark]: RCFGBuilder took 627.55 ms. Allocated memory is still 198.7 MB. Free memory was 160.1 MB in the beginning and 116.8 MB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:39,789 INFO L168 Benchmark]: TraceAbstraction took 1407.95 ms. Allocated memory was 198.7 MB in the beginning and 219.2 MB in the end (delta: 20.4 MB). Free memory was 116.1 MB in the beginning and 136.1 MB in the end (delta: -20.0 MB). Peak memory consumption was 431.3 kB. Max. memory is 7.1 GB. [2019-09-10 01:45:39,800 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 131.1 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.00 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 86.5 MB in the beginning and 163.3 MB in the end (delta: -76.8 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.92 ms. Allocated memory is still 198.7 MB. Free memory was 163.3 MB in the beginning and 160.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 627.55 ms. Allocated memory is still 198.7 MB. Free memory was 160.1 MB in the beginning and 116.8 MB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1407.95 ms. Allocated memory was 198.7 MB in the beginning and 219.2 MB in the end (delta: 20.4 MB). Free memory was 116.1 MB in the beginning and 136.1 MB in the end (delta: -20.0 MB). Peak memory consumption was 431.3 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 51 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 107 SDtfs, 45 SDslu, 159 SDs, 0 SdLazy, 142 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9565217391304348 AbsIntWeakeningRatio, 0.8260869565217391 AbsIntAvgWeakeningVarsNumRemoved, 0.2608695652173913 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 8427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 4/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...