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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:45:36,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:45:36,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:45:36,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:45:36,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:45:36,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:45:36,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:45:36,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:45:36,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:45:36,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:45:36,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:45:36,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:45:36,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:45:36,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:45:36,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:45:36,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:45:36,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:45:36,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:45:36,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:45:36,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:45:36,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:45:36,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:45:36,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:45:36,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:45:36,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:45:36,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:45:36,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:45:36,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:45:36,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:45:36,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:45:36,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:45:36,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:45:36,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:45:36,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:45:36,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:45:36,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:45:36,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:45:36,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:45:36,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:45:36,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:45:36,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:45:36,998 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 01:45:37,013 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:45:37,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:45:37,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:45:37,013 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:45:37,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:45:37,014 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:45:37,015 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:45:37,015 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:45:37,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:45:37,015 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:45:37,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:45:37,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:45:37,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:45:37,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:45:37,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:45:37,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:45:37,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:45:37,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:45:37,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:45:37,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:45:37,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:45:37,018 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:45:37,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:45:37,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:45:37,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:45:37,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:45:37,019 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:45:37,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:45:37,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:45:37,019 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:45:37,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:45:37,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:45:37,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:45:37,063 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:45:37,063 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:45:37,064 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list-2.i [2019-09-10 01:45:37,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cbd88ecf/5029734582fa43debaa09ae1c0335d57/FLAG51abe13b1 [2019-09-10 01:45:37,646 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:45:37,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list-2.i [2019-09-10 01:45:37,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cbd88ecf/5029734582fa43debaa09ae1c0335d57/FLAG51abe13b1 [2019-09-10 01:45:37,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cbd88ecf/5029734582fa43debaa09ae1c0335d57 [2019-09-10 01:45:38,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:45:38,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:45:38,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:38,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:45:38,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:45:38,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:38,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc03feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38, skipping insertion in model container [2019-09-10 01:45:38,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:37" (1/1) ... [2019-09-10 01:45:38,025 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:45:38,077 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:45:38,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:38,537 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:45:38,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:38,641 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:45:38,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38 WrapperNode [2019-09-10 01:45:38,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:38,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:45:38,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:45:38,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:45:38,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (1/1) ... [2019-09-10 01:45:38,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (1/1) ... [2019-09-10 01:45:38,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (1/1) ... [2019-09-10 01:45:38,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (1/1) ... [2019-09-10 01:45:38,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (1/1) ... [2019-09-10 01:45:38,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (1/1) ... [2019-09-10 01:45:38,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (1/1) ... [2019-09-10 01:45:38,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:45:38,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:45:38,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:45:38,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:45:38,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (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 01:45:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:45:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:45:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:45:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:45:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-09-10 01:45:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-09-10 01:45:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-09-10 01:45:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-10 01:45:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:45:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:45:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:45:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:45:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:45:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:45:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:45:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:45:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:45:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:45:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:45:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:45:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:45:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:45:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:45:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:45:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:45:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:45:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:45:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:45:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:45:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-09-10 01:45:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-09-10 01:45:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-09-10 01:45:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:45:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:45:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:45:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:45:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:45:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:45:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:45:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:45:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:45:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:45:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:45:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:45:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:45:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:45:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:45:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:45:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:45:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:45:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:45:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:45:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:45:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:45:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:45:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:45:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:45:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:45:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:45:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:45:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:45:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:45:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:45:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:45:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:45:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:45:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:45:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:45:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:45:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:45:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:45:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:45:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:45:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:45:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:45:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:45:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:45:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:45:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:45:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:45:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:45:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:45:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:45:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:45:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:45:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:45:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:45:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:45:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:45:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:45:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:45:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:45:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:45:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:45:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:45:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:45:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:45:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:45:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:45:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:45:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:45:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:45:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:45:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:45:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:45:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:45:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:45:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:45:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:45:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:45:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:45:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:45:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:45:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:45:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:45:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:45:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:45:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:45:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-10 01:45:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:45:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:45:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:45:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:45:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:45:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:45:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:45:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:45:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:45:39,130 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-10 01:45:39,297 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:45:39,298 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 01:45:39,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:39 BoogieIcfgContainer [2019-09-10 01:45:39,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:45:39,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:45:39,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:45:39,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:45:39,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:45:37" (1/3) ... [2019-09-10 01:45:39,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4854da1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:39, skipping insertion in model container [2019-09-10 01:45:39,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:38" (2/3) ... [2019-09-10 01:45:39,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4854da1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:39, skipping insertion in model container [2019-09-10 01:45:39,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:39" (3/3) ... [2019-09-10 01:45:39,315 INFO L109 eAbstractionObserver]: Analyzing ICFG list-2.i [2019-09-10 01:45:39,325 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:45:39,334 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:45:39,351 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:45:39,379 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:45:39,379 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:45:39,380 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:45:39,380 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:45:39,380 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:45:39,380 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:45:39,380 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:45:39,381 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:45:39,393 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-09-10 01:45:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:45:39,402 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:39,403 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:39,405 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:39,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1613857984, now seen corresponding path program 1 times [2019-09-10 01:45:39,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:39,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:39,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,462 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:39,534 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 01:45:39,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:39,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:45:39,536 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:39,542 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:45:39,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:45:39,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:45:39,560 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-09-10 01:45:39,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:39,579 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2019-09-10 01:45:39,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:45:39,581 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-09-10 01:45:39,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:39,588 INFO L225 Difference]: With dead ends: 35 [2019-09-10 01:45:39,589 INFO L226 Difference]: Without dead ends: 25 [2019-09-10 01:45:39,590 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 01:45:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-09-10 01:45:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-09-10 01:45:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-10 01:45:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-09-10 01:45:39,625 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2019-09-10 01:45:39,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:39,625 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-09-10 01:45:39,625 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:45:39,625 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-09-10 01:45:39,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-10 01:45:39,626 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:39,626 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 01:45:39,626 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:39,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:39,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1642379272, now seen corresponding path program 1 times [2019-09-10 01:45:39,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:39,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:39,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,629 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:39,746 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 01:45:39,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:39,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:45:39,747 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:39,752 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:45:39,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:45:39,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:45:39,753 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 5 states. [2019-09-10 01:45:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:39,901 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2019-09-10 01:45:39,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:45:39,902 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-09-10 01:45:39,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:39,905 INFO L225 Difference]: With dead ends: 48 [2019-09-10 01:45:39,905 INFO L226 Difference]: Without dead ends: 46 [2019-09-10 01:45:39,906 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 01:45:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-10 01:45:39,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2019-09-10 01:45:39,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-10 01:45:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2019-09-10 01:45:39,913 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 20 [2019-09-10 01:45:39,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:39,913 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-09-10 01:45:39,913 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:45:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2019-09-10 01:45:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-10 01:45:39,914 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:39,915 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 01:45:39,915 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash -2024806125, now seen corresponding path program 1 times [2019-09-10 01:45:39,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:39,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:39,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:39,918 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:39,974 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 01:45:39,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:39,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:45:39,975 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:39,975 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:45:39,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:45:39,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:45:39,976 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 5 states. [2019-09-10 01:45:40,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:40,109 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2019-09-10 01:45:40,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:45:40,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-09-10 01:45:40,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:40,110 INFO L225 Difference]: With dead ends: 46 [2019-09-10 01:45:40,111 INFO L226 Difference]: Without dead ends: 44 [2019-09-10 01:45:40,112 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 01:45:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-09-10 01:45:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2019-09-10 01:45:40,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-10 01:45:40,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2019-09-10 01:45:40,119 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 22 [2019-09-10 01:45:40,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:40,119 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2019-09-10 01:45:40,119 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:45:40,120 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2019-09-10 01:45:40,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-10 01:45:40,124 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:40,124 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 01:45:40,124 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:40,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:40,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1000103149, now seen corresponding path program 1 times [2019-09-10 01:45:40,125 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:40,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:40,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:40,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:40,133 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:45:40,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:45:40,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:45:40,206 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:40,206 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:45:40,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:45:40,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:45:40,207 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 5 states. [2019-09-10 01:45:40,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:40,282 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2019-09-10 01:45:40,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:45:40,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-09-10 01:45:40,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:40,284 INFO L225 Difference]: With dead ends: 44 [2019-09-10 01:45:40,284 INFO L226 Difference]: Without dead ends: 41 [2019-09-10 01:45:40,284 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 01:45:40,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-09-10 01:45:40,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-09-10 01:45:40,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-09-10 01:45:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-09-10 01:45:40,288 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 22 [2019-09-10 01:45:40,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:40,289 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-09-10 01:45:40,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:45:40,289 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-09-10 01:45:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:45:40,290 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:40,290 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 01:45:40,290 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:40,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:40,291 INFO L82 PathProgramCache]: Analyzing trace with hash 422878047, now seen corresponding path program 1 times [2019-09-10 01:45:40,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:40,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:40,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:40,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:40,292 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:45:40,449 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 01:45:40,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:45:40,449 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:45:40,450 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2019-09-10 01:45:40,452 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 01:45:40,488 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:45:40,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:45:40,556 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:45:40,558 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 01:45:40,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:40,562 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:45:40,595 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-10 01:45:40,595 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:45:40,597 INFO L420 sIntCurrentIteration]: We unified 23 AI predicates to 23 [2019-09-10 01:45:40,597 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:45:40,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:45:40,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-10 01:45:40,598 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:45:40,598 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:45:40,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:45:40,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:45:40,599 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 2 states. [2019-09-10 01:45:40,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:45:40,600 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-10 01:45:40,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:45:40,600 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-09-10 01:45:40,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:45:40,601 INFO L225 Difference]: With dead ends: 6 [2019-09-10 01:45:40,601 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:45:40,601 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 01:45:40,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:45:40,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:45:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:45:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:45:40,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-09-10 01:45:40,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:45:40,602 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:45:40,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:45:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:45:40,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:45:40,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:45:40 BoogieIcfgContainer [2019-09-10 01:45:40,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:45:40,611 INFO L168 Benchmark]: Toolchain (without parser) took 2601.58 ms. Allocated memory was 143.1 MB in the beginning and 233.8 MB in the end (delta: 90.7 MB). Free memory was 89.3 MB in the beginning and 141.5 MB in the end (delta: -52.1 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:40,612 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 143.1 MB. Free memory was 109.3 MB in the beginning and 109.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:45:40,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.19 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 89.1 MB in the beginning and 167.8 MB in the end (delta: -78.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:40,614 INFO L168 Benchmark]: Boogie Preprocessor took 65.36 ms. Allocated memory is still 202.9 MB. Free memory was 167.8 MB in the beginning and 165.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:40,615 INFO L168 Benchmark]: RCFGBuilder took 591.25 ms. Allocated memory is still 202.9 MB. Free memory was 165.0 MB in the beginning and 121.9 MB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:40,616 INFO L168 Benchmark]: TraceAbstraction took 1307.07 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 121.9 MB in the beginning and 141.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:40,620 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 143.1 MB. Free memory was 109.3 MB in the beginning and 109.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.19 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 89.1 MB in the beginning and 167.8 MB in the end (delta: -78.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.36 ms. Allocated memory is still 202.9 MB. Free memory was 167.8 MB in the beginning and 165.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 591.25 ms. Allocated memory is still 202.9 MB. Free memory was 165.0 MB in the beginning and 121.9 MB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1307.07 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 121.9 MB in the beginning and 141.5 MB in the end (delta: -19.6 MB). Peak memory consumption was 11.3 MB. 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, 1.2s 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, 8151 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...